Network Parameters. Cisco Unified Communications Manager Express Version 11.7 , Unified Communications Manager Express, Unified Communications Manager Express Version 12.5 , Unified Communications Manager Express Version 12.3 , Unified Communications Manager Express Version 14.0 , Unified Communications Manager Express Version 14.1 , Unified Communications Manager Express Version 12.0 , Unified Communications Manager Express Version 12.2 , Unified Communications Manager Express Version 11.5 , Unified Communications Manager Express Version 12.1

C H A P T E R

5

Network Parameters

•

Prerequisites for Defining Network Parameters, page 121

•

Restrictions for Defining Network Parameters, page 122

•

Information About Defining Network Parameters, page 122

•

Define Network Parameters, page 125

•

Configuration Examples for Network Parameters, page 146

•

Where to Go Next, page 146

•

Feature Information for Network Parameters, page 146

Prerequisites for Defining Network Parameters

• IP routing must be enabled.

• VoIP networking must be operational. For quality and security purposes, we recommend you have separate virtual LANs (VLANs) for data and voice. The IP network assigned to each VLAN should be large enough to support addresses for all nodes on that VLAN. Cisco Unified CME phones receive their

IP addresses from the voice network, whereas all other nodes such as PCs, servers, and printers receive their IP addresses from the data network. For configuration information, see

Configure VLANs on a

Cisco Switch, on page 90

.

• If applicable, PSTN lines are configured and operational.

• If applicable, the WAN links are configured and operational.

• Trivial File Transfer Protocol (TFTP) must be enabled on the router to allow IP phones to download phone firmware files.

• To support IP phones that are running SIP to be directly connected to the Cisco Unified CME router,

Cisco Unified CME 3.4 or later must be installed on the router.

• To provide voice-mail support for phones connected to the Cisco Unified CME router, install and configure voice mail on your network.

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Restrictions for Defining Network Parameters

Restrictions for Defining Network Parameters

In Cisco Unified CME 4.0 and later versions, Layer-3-to-Layer-2 VLAN Class of Service (CoS) priority marking is not automatically processed. Cisco Unified CME 4.0 and later versions will continue to mark Layer

3, but Layer 2 marking is now only handled in the Cisco IOS software. Any Quality of Service (QoS) design that requires Layer 2 marking will have to be explicitly configured, either on a Catalyst switch that supports this capability or on the Cisco Unified CME router under the Ethernet interface configuration. For configuration information, see Enterprise QoS Solution Reference Network Design Guide .

Information About Defining Network Parameters

DHCP Service

When a Cisco Unified IP phone is connected to the Cisco Unified CME system, it automatically queries for a Dynamic Host Configuration Protocol (DHCP) server. The DHCP server responds by assigning an IP address to the Cisco Unified IP phone and providing the IP address of the TFTP server through DHCP option 150.

Then the phone registers with the Cisco Unified CME server and attempts to get configuration and phone firmware files from the TFTP server.

For configuration information, perform only one of the following procedures to set up DHCP service for your

IP phones:

• If your Cisco Unified CME router is the DHCP server and you can use a single shared address pool for all your DHCP clients, see

Configure Single DHCP IP Address Pool, on page 127

.

• If your Cisco Unified CME router is the DHCP server and you need separate pools for non-IP-phone

DHCP clients, see

Configure Separate DHCP IP Address Pool for Each DHCP Client, on page 129

.

• If the Cisco Unified CME router is not the DHCP server and you want to relay DHCP requests from IP phones to a DHCP server on a different router, see

Configure DHCP Relay, on page 131

.

Network Time Protocol for the Cisco Unified CME Router

Network Time Protocol (NTP) allows you to synchronize your Cisco Unified CME router to a single clock on the network, known as the clock master. NTP is disabled on all interfaces by default, but it is essential for

Cisco Unified CME so you must ensure that it is enabled. For information about configuring NTP for the

Cisco Unified CME router, see

Enable Network Time Protocol, on page 133

.

Olson Timezones

Before Cisco Unified CME 9.0, some Cisco Unified SCCP IP phones and Cisco Unified SIP IP phones displayed exactly the same time as that of the Cisco Unified CME. For these phones, the correct time was displayed whenever the Cisco Unified CME time was set correctly. The clock timezone, clock summer-time, and clock set commands were the only commands used to set the Cisco Unified CME time correctly.

Other phones used only the time-zone command in telephony-service configuration mode and the timezone command in voice register global configuration mode to specify which time zone they were in so that the

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DTMF Relay

correct local time was displayed on Cisco Unified SCCP IP phones and Cisco Unified SIP IP phones, respectively. The phones calculated and displayed the time based on the Greenwich Mean Time (GMT) provided by the Cisco Unified CME or the Network Time Protocol server. The problem with this method is that every time a new country or new time zone was available or an old time zone was changed, the Cisco

Unified CME time-zone and timezone commands and the phone loads had to be updated.

In Cisco Unified CME 9.0 and later versions, the Olson Timezone feature eliminates the need to update time zone commands or phone loads to accommodate a new country with a new time zone or an existing country whose city or state wants to change their time zone. Oracle’s Olson Timezone updater tool, tzupdater.jar, only needs to be current for you to set the correct time using the olsontimezone command in either telephony-service or voice register global configuration mode.

For Cisco Unified 3911 and 3951 SIP IP phones and Cisco Unified 6921, 6941, 6945, and 6961 SCCP and

SIP IP phones, the correct Olson Timezone updater file is TzDataCSV.csv. The TzDataCSV.csv file is created based on the tzupdater.jar file.

To set the correct time zone, you must determine the Olson Timezone area/location where the Cisco Unified

CME is located and download the latest tzupdater.jar or TzDataCSV.csv to a TFTP server that is accessible to the Cisco Unified CME, such as flash or slot 0.

After a complete reboot, the phone checks if the version of its configuration file is earlier or later than 2010o.

If it is earlier, the phone loads the latest tzupdater.jar and uses that updater file to calculate the Olson Timezone.

To make the Olson Timezone feature backward compatible, both the time-zone and timezone commands are retained as legacy time zones. Because the olsontimezone command covers approximately 500 time zones

(Version 2010o of the tzupdater.jar file supports approximately 453 Olson Timezone IDs.), this command takes precedence when either the time-zone or the timezone command (that covers a total of 90 to 100 time zones only) is present at the same time as the olsontimezone command.

For more information on setting the time zone so that the correct local time is displayed on an IP phone, see

Set Olson Timezone for SCCP Phones, on page 134

or

Set Olson Timezone for SIP Phones, on page 137

.

DTMF Relay

IP phones connected to Cisco Unified CME systems require the use of out-of-band DTMF relay to transport

DTMF (keypad) digits across VoIP connections. The reason for this is that the codecs used for in-band transport may distort DTMF tones and make them unrecognizable. DTMF relay solves the problem of DTMF tone distortion by transporting DTMF tones out-of-band, or separate, from the encoded voice stream.

For IP phones on H.323 networks, DTMF is relayed using the H.245 alphanumeric method, which is defined by the ITU H.245 standard. This method separates DTMF digits from the voice stream and sends them as

ASCII characters in H.245 user input indication messages through the H.245 signaling channel instead of the

RTP channel. For information about configuring a DTMF relay in a multisite installation, see

Configure

DTMF Relay for H.323 Networks in Multisite Installations, on page 141

.

To use remote voice-mail or IVR applications on SIP networks from Cisco Unified CME phones, the DTMF digits used by the Cisco Unified CME phones must be converted to the RFC 2833 in-band DTMF relay mechanism used by SIP phones. The SIP DTMF relay method is needed in the following situations:

• When SIP is used to connect a Cisco Unified CME system to a remote SIP-based IVR or voice-mail application.

• When SIP is used to connect a Cisco Unified CME system to a remote SIP-PSTN voice gateway that goes through the PSTN to a voice-mail or IVR application.

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SIP Register Support

The requirement for out-of-band DTMF relay conversion is limited to SCCP phones. SIP phones natively support in-band DTMF relay as specified in RFC 2833.

To use voice mail on a SIP network that connects to a Cisco Unity Express system, which uses a nonstandard

SIP Notify format, the DTMF digits used by the Cisco Unified CME phones must be converted to the Notify format. Additional configuration may be required for backward compatibility with Cisco CME 3.0 and 3.1.

For configuration information about enabling DTMF relay for SIP networks, see

Configure SIP Trunk Support,

on page 142 .

SIP Register Support

SIP register support enables a SIP gateway to register E.164 numbers with a SIP proxy or SIP registrar, similar to the way that H.323 gateways can register E.164 numbers with a gatekeeper. SIP gateways allow registration of E.164 numbers to a SIP proxy or registrar on behalf of analog telephone voice ports (FXS) and IP phone virtual voice ports (EFXS) for local SCCP phones.

When registering E.164 numbers in dial peers with an external registrar, you can also register them with a secondary SIP proxy or registrar to provide redundancy. The secondary registration can be used if the primary registrar fails.

Note

No commands allow registration between the H.323 and SIP protocols.

By default, SIP gateways do not generate SIP Register messages, so the gateway must be configured to register the gateway’s E.164 telephone numbers with an external SIP registrar. For information about configuring the

SIP gateway to register phone numbers with Cisco Unified CME, see

Configure SIP Trunk Support, on page

142 .

Note

When you configure SIP on a router, the ports on all its interfaces are open by default. This makes the router vulnerable to malicious attackers who can execute toll fraud across the gateway if the router has a public IP address and a public switched telephone network (PSTN) connection. To eliminate the threat, you should bind an interface to private IP address that is not accessible by untrusted hosts. In addition, you should protect any public or untrusted interface by configuring a firewall or an access control list

(ACL) to prevent unwanted traffic from traversing the router.

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Define Network Parameters

Define Network Parameters

Enable Calls in Your VoIP Network

Restriction

• SIP endpoints are not supported on H.323 trunks. SIP endpoints are supported on SIP trunks only.

• Cisco Unified CME 3.4 and later versions support Media Flow-through mode only; enabling

SIP-to-SIP calls is required before you can successfully make SIP-to-SIP calls.

• Media Flow-around configured with the media flow-around command is not supported by

Cisco Unified CME with SIP phones.

SUMMARY STEPS

1. enable

2. configure terminal

3. voice service voip

4. allow-connections from-type to to-type

5. sip

6. registrar server [expires [max sec] [min sec]]

7. exit

8. sip-ua

9. notify telephone-event max-duration time

10. registrar {dns:host-name | ipv4:ip-address} expires seconds [tcp] [secondary]

11. retry register number

12. timers register time

13. end

DETAILED STEPS

Step 1

Step 2

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

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Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Command or Action voice service voip

Purpose

Enters voice service configuration mode and specifies Voice over IP

(VoIP) encapsulation.

Example:

Router(config)# voice service voip

allow-connections from-type to to-type

Example:

Router(config-voi-srv)# allow-connections h323 to h323

Router(config-voi-srv)# allow-connections h323 to SIP

Router(config-voi-srv)# allow-connections SIP to SIP

sip

Enables calls between specific types of endpoints in a VoIP network.

• A separate allow-connections command is required for each type of endpoint to be supported.

Example:

Router(config-voi-srv)# sip

(Optional) Enters SIP configuration mode.

• Required if you are connecting IP phones running SIP directly in Cisco CME 3.4 and later.

registrar server [expires [max sec] [min sec]] (Optional) Enables SIP registrar functionality in Cisco Unified CME.

Example:

Router(config-voi-sip)# registrar server expires max 600 min 60

Note

• Required if you are connecting IP phones running SIP directly in Cisco CME 3.4 and later.

Cisco Unified CME does not maintain a persistent database of registration entries across reloads. Because SIP phones do not use a keepalive functionality, the SIP phones must register again. To decrease the amount of time after which the SIP phones register again, we recommend that you change the expiry.

• max sec—(Optional) Range: 600 to 86400. Default: 3600.

Recommended value: 600.

Note

Ensure that the registration expiration timeout is set to a value smaller than the TCP connection aging timeout to avoid disconnection from the TCP.

• min sec—(Optional) Range: 60 to 3600. Default: 60.

Exits dial-peer configuration mode.

exit

Example:

Router(config-voi-sip)# exit

sip-ua

Example:

Router(config)# sip-ua

Enters SIP user-agent configuration mode.

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Configure DHCP

Step 9

Step 10

Step 11

Step 12

Step 13

Command or Action

notify telephone-event max-duration time

Purpose

Configures the maximum time interval allowed between two consecutive NOTIFY messages for a single DTMF event.

• max-duration time—Range: 500 to 3000. Default: 2000.

Example:

Router(config-sip-ua)# notify telephone-event max-duration 2000

registrar {dns:host-name | ipv4:ip-address}

expires seconds [tcp] [secondary]

Registers E.164 numbers on behalf of analog telephone voice ports

(FXS) and IP phone virtual voice ports (EFXS) with an external SIP proxy or SIP registrar server.

Example:

Router(config-sip-ua)# registrar ipv4:10.8.17.40 expires 3600 secondary

retry register number

Example:

Router(config-sip-ua)# retry register

10

Sets the total number of SIP Register messages that the gateway should send.

• number—Number of Register message retries. Range: 1 to 10.

Default: 10.

timers register time

Example:

Router(config-sip-ua)# timers register

500

Sets how long the SIP user agent (UA) waits before sending Register requests.

• time—Waiting time, in milliseconds. Range: 100 to 1000.

Default: 500.

Exits configuration mode and enters privileged EXEC mode.

end

Example:

Router(config-sip-ua)# end

Configure DHCP

To set up DHCP service for your DHCP clients, perform only one of the following procedures:

• If your Cisco Unified CME router is the DHCP server and you can use a single shared address pool for all your DHCP clients, see

Configure Single DHCP IP Address Pool, on page 127

.

• If your Cisco Unified CME router is the DHCP server and you need separate pools for each IP phone and each non-IP-phone DHCP client, see

Configure Separate DHCP IP Address Pool for Each DHCP

Client, on page 129

.

• If the Cisco Unified CME router is not the DHCP server and you want to relay DHCP requests from IP phones to a DHCP server on a different router, see

Configure DHCP Relay, on page 131

.

Configure Single DHCP IP Address Pool

To create a shared pool of IP addresses for all DHCP clients, perform the following step.

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Configure DHCP

Note

Do not perform this task if you already have a DHCP server on the LAN that can be used to provide addresses to the Cisco Unified CME phones. See

Enable Network Time Protocol, on page 133

.

Restriction

A single DHCP IP address pool cannot be used if non-IP-phone clients, such as PCs, must use a different

TFTP server address.

Before You Begin

Your Cisco Unified CME router is a DHCP server.

SUMMARY STEPS

1. enable

2. configure terminal

3. ip dhcp pool pool-name

4. network ip-address [mask | / prefix-length]

5. option 150 ip ip-address

6. default-router ip-address

7. end

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Command or Action enable

Example:

Router> enable

configure terminal

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Example:

Router# configure terminal

ip dhcp pool pool-name Creates a name for the DHCP server address pool and enters DHCP pool configuration mode.

Example:

Router(config)# ip dhcp pool mypool

network ip-address [mask | / prefix-length] Specifies the IP address of the DHCP address pool to be configured.

Example:

Router(config-dhcp)# network 10.0.0.0

255.255.0.0

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Step 5

Step 6

Step 7

Command or Action

option 150 ip ip-address

Purpose

Specifies the TFTP server address from which the Cisco Unified IP phone downloads the image configuration file.

• This is your Cisco Unified CME router’s address.

Example:

Router(config-dhcp)# option 150 ip

10.0.0.1

default-router ip-address

Example:

Router(config-dhcp)# default-router

10.0.0.1

(Optional) Specifies the router that the IP phones will use to send or receive IP traffic that is external to their local subnet.

• If the Cisco Unified CME router is the only router on the network, this address should be the Cisco Unified CME IP source address.

This command can be omitted if IP phones need to send or receive

IP traffic only to or from devices on their local subnet.

• The IP address that you specify for default router will be used by the IP phones for fallback purposes. If the Cisco Unified CME IP source address becomes unreachable, IP phones will attempt to register to the address specified in this command.

end

Returns to privileged EXEC mode.

Example:

Router(config-dhcp)# end

What to Do Next

• If you are configuring Cisco Unified CME for the first time on this router, you are ready to configure

NTP for the Cisco Unified CME router. For more information, see

Enable Network Time Protocol, on

page 133 .

• If you are finished modifying network parameters for an already configured Cisco Unified CME router, see

Configuration Files for Phones, on page 385

.

Configure Separate DHCP IP Address Pool for Each DHCP Client

To create a DHCP IP address pool for each DHCP client, including non-IP-phone clients such as PCs, perform the following steps.

Note

Do not perform this task if you already have a DHCP server on the LAN that can be used to provide addresses to the Cisco Unified CME phones. See

Enable Network Time Protocol, on page 133

.

Restriction

To use a separate DHCP IP address pool for each DHCP client, make an entry for each IP phone.

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Configure DHCP

Before You Begin

Your Cisco Unified CME router is a DHCP server.

SUMMARY STEPS

1. enable

2. configure terminal

3. ip dhcp pool pool-name

4. host ip-address subnet-mask

5. client-identifier mac-address

6. option 150 ip ip-address

7. default-router ip-address

8. end

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Step 5

Command or Action enable

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Example:

Router> enable

configure terminal

Enters global configuration mode.

Example:

Router# configure terminal

ip dhcp pool pool-name

Creates a name for the DHCP server address pool and enters DHCP pool configuration mode.

Example:

Router(config)# ip dhcp pool pool2

host ip-address subnet-mask Specifies the IP address that you want the phone to get.

Example:

Router(config-dhcp)# host 10.0.0.0

255.255.0.0

client-identifier mac-address

Example:

Router(config-dhcp)# client-identifier

01238.380.3056

Specifies the MAC address of the phone, which is printed on a label on each Cisco Unified IP phone.

• A separate client-identifier command is required for each DHCP client.

• Add “01” prefix number before the MAC address.

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Configure DHCP

Step 6

Step 7

Step 8

Command or Action

option 150 ip ip-address

Purpose

Specifies the TFTP server address from which the Cisco Unified IP phone downloads the image configuration file.

• This is your Cisco Unified CME router’s address.

Example:

Router(config-dhcp)# option 150 ip

10.0.0.1

default-router ip-address

Example:

Router(config-dhcp)# default-router

10.0.0.1

(Optional) Specifies the router that the IP phones will use to send or receive IP traffic that is external to their local subnet.

• If the Cisco Unified CME router is the only router on the network, this address should be the Cisco Unified CME IP source address.

This command can be omitted if IP phones need to send or receive

IP traffic only to or from devices on their local subnet.

• The IP address that you specify for default router will be used by the IP phones for fallback purposes. If the Cisco Unified CME IP source address becomes unreachable, IP phones will attempt to register to the address specified in this command.

end

Returns to privileged EXEC mode.

Example:

Router(config-dhcp)# end

What to Do Next

• If you are configuring Cisco Unified CME for the first time on this router, you are ready to configure

NTP for the Cisco Unified CME router. See

Enable Network Time Protocol, on page 133

.

• If you are finished modifying network parameters for an already configured Cisco Unified CME router, see

Configuration Files for Phones, on page 385

.

Configure DHCP Relay

To set up DHCP relay on the LAN interface where the Cisco Unified IP phones are connected and enable the

DHCP relay to relay requests from the phones to the DHCP server, perform the following steps.

Restriction

The Cisco Unified CME router cannot be the DHCP server.

Before You Begin

There is a DHCP server that is not on this Cisco Unified CME router on the LAN that can provide addresses to the Cisco Unified CME phones.

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Configure DHCP

SUMMARY STEPS

1. enable

2. configure terminal

3. service dhcp

4. interface type number

5. ip helper-address ip -address

6. end

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

service dhcp

Example:

Router(config)# service dhcp

interface type number

Example:

Router(config)# interface vlan 10

ip helper-address ip -address

Example:

Router(config-if)# ip helper-address

10.0.0.1

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Enables the Cisco IOS DHCP server feature on the router.

Enters interface configuration mode for the specified interface.

Specifies the helper address for any unrecognized broadcast for

TFTP server and DNS server requests.

• A separate ip helper-address command is required for each server if the servers are on different hosts.

• You can also configure multiple TFTP server targets by using the ip helper-address commands for multiple servers.

Returns to privileged EXEC mode.

end

Example:

Router(config-if)# end

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Enable Network Time Protocol

What to Do Next

• If you are configuring Cisco Unified CME for the first time on this router, you are ready to configure

NTP for the Cisco Unified CME router. See

Enable Network Time Protocol, on page 133

.

• If you are finished modifying network parameters for an already configured Cisco Unified CME router, see

Configuration Files for Phones, on page 385

.

Enable Network Time Protocol

SUMMARY STEPS

1. enable

2. configure terminal

3. clock timezone zone hours-offset [minutes-offset]

4. clock summer-time zone recurring [week day month hh:mm week day month hh:mm [offset]]

5. ntp server ip-address

6. exit

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Command or Action enable

Example:

Router> enable

configure terminal

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Example:

Router# configure terminal

clock timezone zone hours-offset [minutes-offset] Sets the local time zone.

Example:

Router(config)# clock timezone pst -8

clock summer-time zone recurring [week day month

hh:mm week day month hh:mm [offset]]

(Optional) Specifies daylight savings time.

Example:

Router(config)# clock summer-time pdt recurring

• Default: summer time is disabled. If the clock

summer-time zone recurring command is specified without parameters, the summer time rules default to

United States rules. Default of the offset argument is

60.

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Set Olson Timezone for SCCP Phones

Step 5

Step 6

Command or Action

ntp server ip-address

Example:

Router(config)# ntp server 10.1.2.3

exit

Example:

Router(config-telephony)# end

Purpose

Synchronizes software clock of router with the specified

NTP server.

Returns to privileged EXEC mode.

What to Do Next

• If you are configuring Cisco Unified CME for the first time on this router and if you have a multisite installation, you are ready to configure a DTMF relay. See

Configure DTMF Relay for H.323 Networks in Multisite Installations, on page 141

.

• If Cisco Unified CME will interact with a SIP Gateway, you must set up support for the gateway. See

Configure SIP Trunk Support, on page 142

.

• If you are configuring Cisco Unified CME for the first time on this router and you are ready to configure system parameters. See

System-Level Parameters, on page 149

.

• If you are finished modifying network parameters for an already configured Cisco Unified CME router, see

Configuration Files for Phones, on page 385

.

Set Olson Timezone for SCCP Phones

To set the Olson Timezone so that the correct local time is displayed on a Cisco Unified SCCP IP phone, perform the following steps.

Before You Begin

• TzDataCSV.csv file is added to the configuration files of Cisco Unified 6921, 6941, 6945, and 6961

SCCP IP phones.

• tzupdater.jar file is added to the configuration files of Cisco Unified 7961 SCCP IP phones.

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Set Olson Timezone for SCCP Phones

SUMMARY STEPS

1. enable

2. configure terminal

3. tftp-server device: tzupdater.jar

4. tftp-server device: TZDataCSV.csv

5. telephony-service

6. olsontimezone timezone version number

7. create cnf-files

8. time-zone number

9. exit

10. clock timezone zone hours-offset

11. clock summer-time zone date date month year hh:mm date month year hh:mm

12. exit

13. clock set hh:mm:ss day month year

14. configure terminal

15. telephony-service

16. reset

17. end

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

tftp-server device: tzupdater.jar

Example:

Router(config)# tftp-server flash:tzupdater.jar

tftp-server device: TZDataCSV.csv

Example:

Router(config)# tftp-server flash:TZDataCSV.csv

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Enables access to the tzupdater.jar file on the TFTP server.

• device—TFTP server that is accessible to the Cisco Unified CME, such as flash or slot 0.

Enables access to the TZDataCSV.csv file on the TFTP server.

• device—TFTP server that is accessible to the Cisco Unified CME, such as flash or slot 0.

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Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Step 11

Command or Action telephony-service

Purpose

Enters telephony-service configuration mode.

Example:

Router(config)# telephony-service

olsontimezone timezone version number

Example:

Router(config-telephony)# olsontimezone

America/Argentina/Buenos Aires version

2010o

Sets the Olson Timezone so that the correct local time is displayed on

Cisco Unified SCCP IP phones or Cisco Unified SIP IP phones.

• timezone—Olson Timezone names, which include the area (name of continent or ocean) and location (name of a specific location within that region, usually cities or small islands).

• version number—Version of the tzupdater.jar or TzDataCSV.csv

file. The version indicates whether the file needs to be updated or not.

create cnf-files

Note

In Cisco Unified CME 9.0, the latest version is

2010o.

Builds the eXtensible Markup Language (XML) configuration files that are required for Cisco Unified SCCP IP phones in Cisco Unified

CME.

Example:

Router(config-telephony)# create cnf-files

time-zone number

Example:

Router(config-telephony)# time-zone 21

Sets the time zone so that the correct local time is displayed on Cisco

Unified SCCP IP phones.

• number—Numeric code for a named time zone.

exit

Exits telephony-service configuration mode.

Example:

Router(config-telephony)# exit

clock timezone zone hours-offset

Example:

Router(config)# clock timezone CST -6

Sets the time zone for display purposes.

• zone—Name of the time zone to be displayed when standard time is in effect. The length of the zone argument is limited to 7 characters.

• hours-offset—Hours difference from UTC.

clock summer-time zone date date month

year hh:mm date month year hh:mm

Example:

Router(config)# clock summer-time CST date 12 October 2010 2:00 26 April

2011 2:00

(Optional) Configures the Cisco Unified CME system to automatically switch to summer time (daylight saving time).

• zone—Name of the time zone (for example, “PDT” for Pacific

Daylight Time) to be displayed when summer time is in effect.

The length of the zone argument is limited to 7 characters.

• date—Indicates that summer time should start on the first specific date listed in the command and end on the second specific date in the command.

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Step 12

Step 13

Step 14

Step 15

Step 16

Step 17

Command or Action Purpose

• date—Date of the month (1 to 31).

• month—Month (January, February, and so on).

• year—Year (1993 to 2035).

• hh:mm—Time (24-hour format) in hours and minutes.

exit

Exits global configuration mode.

Example:

Router(config)# exit

clock set hh:mm:ss day month year

Example:

Router# clock set 19:29:00 13 May 2011

Manually sets the system software clock.

• hh:mm:ss—Current time in hours (24-hour format), minutes, and seconds.

• day—Current day (by date) in the month.

• month—Current month (by name).

• year—Current year (no abbreviation).

Enters global configuration mode.

configure terminal

Example:

Router# configure terminal

telephony-service

Example:

Router(config)# telephony-service

reset

Example:

Router(config-telephony)# reset

end

Example:

Router(config-telephony)# end

Enters telephony-service configuration mode.

Performs a complete reboot of Cisco Unfiied SCCP IP phones associated with a Cisco Unified CME router.

Exits to privileged EXEC mode.

Set Olson Timezone for SIP Phones

To set the Olson Timezone so that the correct local time is displayed on a Cisco Unified SIP IP phone, perform the following steps.

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Before You Begin

• TzDataCSV.csv file is added to the configuration files of Cisco Unified 3911, 3951, 6921, 6941, 6945, and 6961 SIP IP phones.

• tzupdater.jar file is added to the configuration files of Cisco Unified 7961 SIP IP phones.

SUMMARY STEPS

1. enable

2. configure terminal

3. tftp-server device: tzupdater.jar

4. tftp-server device: TZDataCSV.csv

5. voice register global

6. olsontimezone timezone version number

7. create profile

8. timezone number

9. exit

10. clock timezone zone hours-offset

11. clock summer-time zone date date month year hh:mm date month year hh:mm

12. exit

13. clock set hh:mm:ss day month year

14. configure terminal

15. voice register global

16. reset

17. end

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

tftp-server device: tzupdater.jar

Example:

Router(config)# tftp-server slot0:tzupdater.jar

tftp-server device: TZDataCSV.csv

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Enables access to the tzupdater.jar file on the TFTP server.

• device—TFTP server that is accessible to the Cisco Unified

CME, such as flash or slot 0.

Enables access to the TZDataCSV.csv file on the TFTP server.

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Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Step 11

Command or Action Purpose

• device—TFTP server that is accessible to the Cisco Unified

CME, such as flash or slot 0.

Example:

Router(config)# tftp-server slot0:TZDataCSV.csv

voice register global

Enters voice register global configuration mode.

Example:

Router(config)# voice register global

olsontimezone timezone version number

Example:

Router(config-register-global)# olsontimezone America/Argentina/Buenos

Aires version 2010o

Sets the Olson Timezone so that the correct local time is displayed on

Cisco Unified SCCP IP phones or Cisco Unified SIP IP phones.

• timezone—Olson Timezone names, which include the area (name of continent or ocean) and location (name of a specific location within that region, usually cities or small islands).

• version number—Version of the tzupdater.jar or tzdatacsv.csv

file. The version indicates whether the file needs to be updated or not.

Note

In Cisco Unified CME 9.0, the latest version is

2010o.

create profile

Generates the configuration profile files required for Cisco Unified

SIP IP phones.

Example:

Router(config-register-global)# create profile

timezone number Sets the time zone used for Cisco Unified SIP IP phones.

Example:

Router(config-register-global)# timezone

21

exit

• number—Range is 1 to 53. Default is 5, Pacific

Standard/Daylight Time.

Exits voice register global configuration mode.

Example:

Router(config-register-global)# exit

clock timezone zone hours-offset

Example:

Router(config)# clock timezone CST -6

Sets the time zone for display purposes.

• zone—Name of the time zone to be displayed when standard time is in effect. The length of the zone argument is limited to 7 characters.

• hours-offset—Hours difference from UTC.

clock summer-time zone date date month

year hh:mm date month year hh:mm

(Optional) Configures the Cisco Unified CME system to automatically switch to summer time (daylight saving time).

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Step 12

Step 13

Step 14

Step 15

Step 16

Step 17

Command or Action

Example:

Router(config)# clock summer-time CST date 12 October 2010 2:00 26 April 2011

2:00

Purpose

• zone—Name of the time zone (for example, “PDT” for Pacific

Daylight Time) to be displayed when summer time is in effect.

The length of the zone argument is limited to 7 characters.

• date—Indicates that summer time should start on the first specific date listed in the command and end on the second specific date in the command.

• date—Date of the month (1 to 31).

• month—Month (January, February, and so on).

• year—Year (1993 to 2035).

• hh:mm—Time (24-hour format) in hours and minutes.

exit

Exits global configuration mode.

Example:

Router(config)# exit

clock set hh:mm:ss day month year

Example:

Router# clock set 15:25:00 17 November

2011

Manually sets the system software clock.

• hh:mm:ss—Current time in hours (24-hour format), minutes, and seconds.

• day—Current day (by date) in the month.

• month—Current month (by name).

• year—Current year (no abbreviation).

configure terminal

Enters global configuration mode.

Example:

Router# configure terminal

voice register global

Enters voice register global configuration mode.

Example:

Router(config)# voice register global

reset

Performs a complete reboot of Cisco Unified SIP phones associated with a Cisco Unified CME router.

Example:

Router(config-register-global)# reset

end

Exits to privileged EXEC mode.

Example:

Router(config-register-global)# end

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Configure DTMF Relay for H.323 Networks in Multisite Installations

Configure DTMF Relay for H.323 Networks in Multisite Installations

To configure DTMF relay for H.323 networks in a multisite installation only, perform the following steps.

Note

To configure DTMF relay on SIP networks, see

Configure SIP Trunk Support, on page 142

.

SUMMARY STEPS

1. enable

2. configure terminal

3. dial-peer voice tag voip

4. dtmf-relay h245-alphanumeric

5. end

DETAILED STEPS

Step 1

Step 2

Step 3

Step 4

Step 5

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

dial-peer voice tag voip

Example:

Router(config)# dial-peer voice 2 voip

dtmf-relay h245-alphanumeric

Example:

Router(config-dial-peer)# dtmf-relay h245-alphanumeric

end

Example:

Router(config-dial-peer)# end

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Enters dial-peer configuration mode.

Specifies the H.245 alphanumeric method for relaying dual tone multifrequency (DTMF) tones between telephony interfaces and an H.323 network.

Returns to privileged EXEC mode.

What to Do Next

• To set up support for a SIP trunk, see

Configure SIP Trunk Support, on page 142

.

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Configure SIP Trunk Support

• If you are configuring Cisco Unified CME for the first time on this router and you are ready to configure system parameters. For more information, see

System-Level Parameters, on page 149

.

• If you are finished modifying network parameters for an already configured Cisco Unified CME router, see

Configuration Files for Phones, on page 385

.

Configure SIP Trunk Support

To enable DTMF relay on a dial-peer for a SIP gateway and set up the gateway to register phone numbers with Cisco Unified CME, perform the following steps.

SUMMARY STEPS

1. enable

2. configure terminal

3. dial-peer voice tag voip

4. dtmf-relay rtp-nte

5. dtmf-relay sip-notify

6. exit

7. sip-ua

8. notify telephone-event max-duration msec

9. registrar {dns: host-name | ipv4: ip-address} expires seconds [tcp] [secondary]

10. retry register number

11. timers register msec

12. end

DETAILED STEPS

Step 1

Step 2

Step 3

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

dial-peer voice tag voip

Example:

Router(config)# dial-peer voice 2 voip

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Enters dial-peer configuration mode.

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Step 4

Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Step 11

Step 12

Command or Action Purpose dtmf-relay rtp-nte

Example:

Router(config-dial-peer)# dtmf-relay rtp-nte

Forwards DTMF tones by using Real-Time Transport Protocol

(RTP) with the Named Telephone Event (NTE) payload type and enables DTMF relay using the RFC 2833 standard method.

dtmf-relay sip-notify

Forwards DTMF tones using SIP NOTIFY messages.

Example:

Router(config-dial-peer)# dtmf-relay sip-notify

exit

Exits dial-peer configuration mode.

Example:

Router(config-dial-peer)# exit

sip-ua

Enters SIP user-agent configuration mode.

Example:

Router(config)# sip-ua

notify telephone-event max-duration msec

Sets the maximum milliseconds allowed between two consecutive NOTIFY messages for a single DTMF event.

• max-duration time—Range: 500 to 3000. Default: 2000.

Example:

Router(config-sip-ua)# notify telephone-event max-duration 2000

registrar {dns: host-name | ipv4: ip-address}

expires seconds [tcp] [secondary]

Registers E.164 numbers on behalf of analog telephone voice ports (FXS) and IP phone virtual voice ports (EFXS) with an external SIP proxy or SIP registrar server.

Example:

Router(config-sip-ua)# registrar ipv4:10.8.17.40 expires 3600 secondary

retry register number

Example:

Router(config-sip-ua)# retry register 10

Sets the total number of SIP Register messages that the gateway should send.

• number—Number of Register message retries.

Range: 1 to 10. Default: 10.

timers register msec

Example:

Router(config-sip-ua)# timers register 500

Sets how long the SIP user agent (UA) waits before sending

Register requests.

• time—Waiting time, in milliseconds. Range: 100 to 1000.

Default: 500.

Returns to privileged EXEC mode.

end

Example:

Router(config-sip-ua)# end

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Verify SIP Trunk Support Configuration

To verify SIP trunk configuration, perform the following steps in any order.

Step 1

Step 2

Step 3

Step 4 show sip-ua status

Use this command to display the time interval between consecutive NOTIFY messages for a telephone event. In the following example, the time interval is 2000 ms:

Example:

Router#

show sip-ua status

SIP User Agent Status

SIP User Agent for UDP :ENABLED

SIP User Agent for TCP :ENABLED

SIP User Agent bind status(signaling):DISABLED

SIP User Agent bind status(media):DISABLED

SIP early-media for 180 responses with SDP:ENABLED

SIP max-forwards :6

SIP DNS SRV version:2 (rfc 2782)

NAT Settings for the SIP-UA

Role in SDP:NONE

Check media source packets:DISABLED

Maximum duration for a telephone-event in NOTIFYs:2000 ms

SIP support for ISDN SUSPEND/RESUME:ENABLED

Redirection (3xx) message handling:ENABLED

SDP application configuration:

Version line (v=) required

Owner line (o=) required

Timespec line (t=) required

Media supported:audio image

Network types supported:IN

Address types supported:IP4

Transport types supported:RTP/AVP udptl

show sip-ua timers

This command displays the waiting time before Register requests are sent; that is, the value that has been set with the

timers register command.

show sip-ua register status

This command displays the status of local E.164 registrations.

show sip-ua statistics

This command displays the Register messages that have been sent.

Change the TFTP Address on a DHCP Server

To change the TFTP IP address after it has already been configured, perform the following steps.

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Restriction

If the DHCP server is on a different router than Cisco Unified CME, reconfigure the external DHCP server with the new IP address of the TFTP server.

Before You Begin

Your Cisco Unified CME router is a DHCP server.

SUMMARY STEPS

1. enable

2. configure terminal

3. ip dhcp pool pool-name

4. option 150 ip ip-address

5. end

DETAILED STEPS

Step 1

Step 2

Step 3

Command or Action enable

Example:

Router> enable

configure terminal

Example:

Router# configure terminal

ip dhcp pool pool-name

Example:

Router(config)# ip dhcp pool pool2

Step 4

Step 5

option 150 ip ip-address

Example:

Router(config-dhcp)# option 150 ip

10.0.0.1

end

Example:

Router(config-dhcp)# end

Purpose

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Enters DHCP pool configuration mode to create or modify a

DHCP pool.

• pool-name—Previously configured unique identifier for the pool to be configured.

Specifies the TFTP server IP address from which the

Cisco Unified IP phone downloads the image configuration file,

XmlDefault.cnf.xml.

Returns to privileged EXEC mode.

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Configuration Examples for Network Parameters

Configuration Examples for Network Parameters

NTP Server

The following example defines the pst timezone as 8 hours offset from UTC, using a recurring daylight savings time called pdt, and synchronizes the clock with the NTP server at 10.1.2.3: clock timezone pst -8 clock summer-time pdt recurring ntp server 10.1.2.3

DTMF Relay for H.323 Networks

The following excerpt from the show running-config command output shows a dial peer configured to use

H.245 alphanumeric DTMF relay: dial-peer voice 4000 voip destination-pattern 4000 session target ipv4:10.0.0.25

codec g711ulaw dtmf-relay h245-alphanumeric

Where to Go Next

• If you are configuring Cisco Unified CME for the first time on this router, you are ready to configure system-level parameters. See

System-Level Parameters, on page 149

.

• If you modified network parameters for an already configured Cisco Unified CME router, you are ready to generate the configuration file to save the modifications. See

Configuration Files for Phones, on page

385 .

Feature Information for Network Parameters

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support.

To access Cisco Feature Navigator, go to www.cisco.com/go/cfn . An account on Cisco.com is not required.

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Feature Information for Network Parameters

Table 9: Feature Information for Network Parameters

Feature Name

Olson Timezone

Cisco Unified CME Version

9.0

Modification

Eliminates the need to update time zone commands or phone loads to accommodate a new country with a new time zone or an existing country whose city or state wants to change their time zone, using the

olsontimezone command in either telephony-service or voice register global configuration mode.

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