Scope of operation: as of LCOS version LCOS 7.2x
. . .
c o n n e c t i n g
y o u r
LANCOM 1724 VoIP
Business VoIP Router with integrated IP PBX for ISDN and SIP telephony at sites
with up to 4 ISDN exchange lines
쮿 IP PBX for ISDN and 8 SIP subscribers (up to 32 with VoIP- 32 Option)
쮿 Four ISDN ports (NT/TE) for 8 parallel ISDN channels
쮿 SIP proxy for registration with providers and upstream VoIP PBXs
쮿 SIP gateway with transparent transition between SIP and ISDN
쮿 Intelligent call routing and number translation
쮿 Stateful- inspection firewall and VPN gateway
b u s i n e s s
The Business VoIP Router LANCOM 1724 VoIP is a powerful IP PBX with up to 8 parallel ISDN voice channels at the exchange line or for integrating smaller or mid- sized sites with
existing complex ISDN infrastructures.
Four switchable ISDN ports offer flexibility and investment protection when migrating existing ISDN PBXs to Voice over IP. It can cater for up to 32 direct telephony subscribers, or
it can break- out any number of subscribers to Internet SIP gateways.
It supports ISDN point- to- point connections, i.e. with a main number and extension numbers, and it supports SIP trunking as well, all of which makes the LANCOM 1724 VoIP a
business solution that is ready for the future.
More than just a new PBX.
The combination with ISDN or SIP telephones like the LANCOM VP- 100 makes a separate PBX completely superfluous. All of the basic functions of the traditional telephone are
provided by the LANCOM router's VoIP Call Manager – for up to 32 subscribers and four ISDN outside lines.
At the same time, the professional security, routing and network functions, including VPN, provide everything that modern companies need for their data networks.
Even Voice over VPN or Voice over WLAN (with separate Access Points) can be used in parallel with data networking. Free updates to the solution provide savings through
consolidation for true protection of this future- proof investment.
More Telephony.
Telephone calls can be automatically directed over existing VPN connections between company sites. Not only are these calls secured from interception; by using flatrate
connections, there are no additional costs, either.
LANCOM opens up a cost- effective migration path between technologies of the ìold and new worldî because existing ISDN telephones and PBXs can be integrated and operated
side by side with VoIP terminal equipment.
Four ISDN ports can be freely configured as internal or external connections and offer eight parallel ISDN voice channels. This allows, for example, an existing ISDN PBX to be
additionally equipped with SIP and connected to an upstream VoIP PBX. Subscribers can simultaneously make calls via ISDN telephones, SIP equipment, or softphones to other SIP
or ISDN subscribers, both internally and externally. The transition between SIP and ISDN is automatic and invisible to the user.
ISDN backup, load balancing and VRRP in combination with an Ethernet port as a WAN interface provide SIP connections with redundancy and high reliability. This ensures that
telephony is just as reliable as ever, even with VoIP.
More Security.
The integrated firewall with the latest security functions such as stateful inspection, Intrusion Detection and Denial- of- Service protection is supplemented by dynamic bandwidth
management and comprehensive functions for backup, high- availability and redundancy. The integrated VPN gateway that fulfills the IPSec standard, and the optional hardware
accelerator provide optimal security for connecting telecommuters and branch offices thanks to the high- security 3- DES or AES encryption and support of digital certificates.
More Benefits.
The versatile functions for address translation and routing allow completely different networks to be connected over common infrastructure. Existing networks at partner companies,
home- office workstations or subsidiaries can be integrated into the VPN without problem. The management systems LANconfig and LANmonitor are included and offer not only
cost- effective remote maintenance of entire installations along with highly convenient setup wizards, but also full real- time monitoring and logging. What’s more, service providers
benefit from the broad range of scripting methods and professional access with individual access rights for administrators via SSH, HTTPS, TFTP and ISDN dial- in.
More Certainty for the Future.
From the very start, LANCOM products are designed for a product life of several years. They are equipped with hardware dimensioned for the future. Even reaching back to older
product generations, updates to the LANCOM Operating System—LCOS—are available several times a year, free of charge and offering major features. LANCOM offers unbeatable
protection of your investment!
LANCOM 1724 VoIP
Firewall
Stateful inspection firewall
Incoming/Outgoing Traffic inspection based on connection information
Packet filter
Check based on the header information of an IP packet (IP or MAC source/destination addresses; source/destination ports,
DiffServ attribute); remote- site dependant, direction dependant, bandwidth dependant
Extended port forwarding
Network Address Translation (NAT) based on protocol and WAN address, i.e. to make internal webservers accessible from WAN
N:N IP address mapping
N:N IP address mapping for translation of IP addresses or entire networks
Tagging
The firewall marks packets with routing tags, e.g. for policy- based routing
Actions
Forward, drop, reject, block sender address, close destination port, disconnect
Notification
Via e- mail, SYSLOG or SNMP trap
Quality of Service
Traffic shaping
Dynamic bandwidth management with IP traffic shaping
Bandwidth reservation
Dynamic reservation of minimum and maximum bandwidths, totally or connection bases, separate settings for send and receive
directions
DiffServ/TOS
Priority queuing of packets based on DiffServ/TOS fields
Packet- size control
Automatic packet- size control by fragmentation or Path Maximum Transmission Unit (PMTU) adjustment.
Layer 2/Layer 3 tagging
Automatic or fixed translation of layer- 2 priority information (802.11p- marked Ethernet frames) to layer- 3 DiffServ attributes in
routing mode. Translation from layer 3 to layer 2 with automatic recognition of 802.1p- support in the destination device.
Security
Intrusion Prevention
Monitoring and blocking of login attempts and port scans
IP spoofing
Source IP address check on all interfaces: only IP addresses belonging to the defined IP networks are allowed
Access control lists
Filtering of IP or MAC addresses and preset protocols for configuration access and LANCAPI
Denial of Service protection
Protection from fragmentation errors and SYN flooding
General
Detailed settings for handling reassembly, PING, stealth mode and AUTH port
URL blocker
Filtering of unwanted URLs based on DNS hitlists and wildcard filters
Password protection
Password- protected configuration access can be set for each interface
Alerts
Alerts via e- mail, SNMP- Traps and SYSLOG
Authentication mechanisms
PAP, CHAP and MS- CHAP as PPP authentication mechanism
Anti- theft
Anti- theft ISDN site verification over B or D channel (self- initiated call back and blocking) or by GPS positioning via internal
UMTS module.
Adjustable reset button
Adjustable reset button for "ignore", "boot- only" and "reset- or- boot
High availability / redundancy
VRRP
VRRP (Virtual Router Redundancy Protocol) for backup in case of failure of a device or remote station. Enables passive standby
groups or reciprocal backup between multiple active devices including load balancing and user definable backup priorities
FirmSafe
For completely safe software upgrades thanks to two stored firmware versions, incl. test mode for firmware updates
ISDN backup
In case of failure of the main connection, a backup connection is established over ISDN; automatic return to the main connection
Analog/GSM modem backup
Optional operation of an analog or GSM modem at the serial interface
Load balancing
Static and dynamic load balancing over up to 2 WAN connections; channel bundling with Multilink PPP (if supported by network
operator)
VPN redundancy
Control of up to 16 redundant VPN gateways for high availability or load balancing
Line monitoring
Line monitoring with LCP echo monitoring, dead- peer detection and up to 4 addresses for end- to- end monitoring with ICMP
polling.
VPN
1- Click- VPN Client assistant
One click function in LANconfig to create VPN client connections, incl. automatic profile creation for the LANCOM Advanced
VPN Client
1- Click- VPN Site- to- Site
Creation of VPN connections between LANCOM router via drag and drop in LANconfig
Number of VPN tunnels
5 IPSec connections active simultaneously (25 with VPN- 25 Option), 25 connections configurable (50 with VPN- 25 Option).
Configuration of all remote sites via one configuration entry when using the RAS user template or Proadaptive VPN
Hardware accelerator (optional)
Activated 3DES/AES hardware encryption with the VPN- 25 Option
IKE
IPSec key exchange with Preshared Key or certificate
Certificates
X.509 digital certificate support, compatible with Microsoft Server / Enterprise Server and OpenSSL, upload of PKCS#12 files via
HTTPS interface
Certificate rollout
Automatic creation, rollout and renewal of certificates via SCEP (Simple Certificate Enrollment Protocol)
LANCOM 1724 VoIP
VPN
Certificate revocation lists (CRL)
CRL retrieval via HTTP
RAS user template
Configuration of all VPN client connections in IKE ConfigMode via a single configuration entry
Proadaptive VPN
Automated configuration and dynamic creation of all necessary VPN and routing entries based on a default entry for site- tosite connections. Propogation of dynamically learned routes via RIPv2, if required.
Algorithms
3DES (168 bit), AES (128, 192 or 256 bit), Blowfish (128 bit), RSA (128 or - 448 bit) and CAST (128 bit); MD- 5 or SHA- 1 hashes
NAT- Traversal
NAT- Traversal (NAT- T) support for VPN over routes without VPN passthrough
IPCOMP
VPN data compression based on LZS or Deflate compression for higher IPSec throughput
LANCOM Dynamic VPN:
Enables VPN connections from or to dynamic IP addresses. The IP address is communicated via ISDN B- or D- channel or with
the ICMP or UDP protocol in encrypted form. Dynamic dial- in for remote sites via connection template
Dynamic DNS
Enables the registration of IP addresses with a Dynamic DNS provider in the case that fixed IP addresses are not used for the
VPN connection
Specific DNS forwarding
DNS forwarding according to DNS domain, e.g. internal names are translated by proprietary DSN servers in the VPN; external
names are translated by Internet DNS servers.
VPN throughput (max.)*
1364- byte packet size
33 Mbps
265- byte packet size
6 Mbps
*) Notice
all VPN figures with AES encryption and active VPN hardware acceleration
Firewall throughput (max.)
1470- byte packet size
61 Mbps
256- byte packet size
9 Mbps
VoIP
Number of local subscribers
max. 8 (upgradable to 32 with LANCOM VoIP- 32 Option)
PBX functionality
Switching between local ISDN, SIP subscribers and upstream SIP PBXs or external ISDN and SIP subscribers.
E.g. support for: Hold/Request, Swap, Transfer, Call Forwarding (CFU, CFB, CFNR), Number display/suppression (CLIP, CLIR),
named internal subscribers, suppression of second call (Busy on Busy), immediate outgoing line, AOC (at internal ISDN), hunt
groups, call diversion
ISDN or SIP subscriber initiated actions:
- Hold/Consultation, Swap, Transfer
- Call Forwarding unconditional (CFU), on busy (CFB), on no reply (CFNR)
Hunt groups
Hunt group cascades with groups as group members. Call diversion to all members simultaneously or sequentially. Automatic
forwarding to target number or hunt group after timeout or when busy/unreachable.
Multi login
Registration of several SIP terminal devices with the same number/ID. Signaling like with a single subscriber, e.g. tabletop
telephone, softphone and mobile handset at the same time
Call router
Central switching of all incoming and outgoing calls. Number translation by mapping, numeral replacement and number
supplementation Configuration of line and route selection, entry of multiple alternative routes (line backup). Routing based on
calling and called number, SIP domain and line. Manual routing by the user ("outside- line access codes"); routing with lineselection keys on telephones or telephone number prefixes; targeted routing for individual telephone numbers (e.g. emergency
calls via local ISDN); separate routes for internal, local, long- distance or international calls; blocking of telephone numbers or
blocks of telephone numbers; inclusion of local subscribers into the number range of an upstream SIP PBX; internal standard
telephone number for undeliverable calls; supplement/remove line- related prefixes or switchboard numbers
SIP proxy and registrar
Management of local SIP users with optional automatic registration/authentication. Mapping of up to 16 public SIP- provider
accounts as telephone lines for shared use. Connection to up to four upstream SIP PBXs including line backup. SIP connections
from/to internal subscribers, SIP providers and SIP PBXs with automatic login of SIP users at SIP providers/upstream SIP PBXs.
Optional shared/individual password for authentication at an upstream SIP PBX. Automatic bandwidth management and
automatic configuration of the firewall for SIP connections. Default DNS entry for the local SIP domains, service location (SRV)
support
SIP gateway
Transparent conversion of ISDN telephone calls to SIP calls, and vice versa. Local ISDN subscribers register as local SIP users,
and local ISDN subscribers automatically register as SIP users at upstream SIP PBXs/with SIP providers. Number translation
between internal numbers and MSN/DDI (including telephone number blocks, max. 40 mapping entries), plus automatic
adaptation of calling numbers and called numbers
SIP trunk
Outgoing call switching and incoming call reception based on extension numbers to/from SIP PBXs/SIP providers (requires
support of the SIP- DDI functions compliant with ITU- T Q.1912.5 at the central exchange) with just a single user account to
register the switchboard number. Mapping of entire SIP telephone number blocks
SIP link
Outgoing call switching and incoming call reception of any numbers to/from SIP PBXs/SIP providers (requires support of this
function at the central exchange) with just a single user account to register. Mapping of entire SIP telephone number blocks
SIP remote gateway
Local break- in/out of calls with any telephone number to/from upstream VoIP PBXs/SIP providers with telephone number
mapping, independent of local users
Number of simultaneous connections
2 - 16 depending on code conversion, echo canceling and load
LANCOM 1724 VoIP
VoIP
Signaling
VoIP: SIPv2, ISDN: DSS1 (Euro- ISDN), point- to- point/point- to- multipoint; 1TR6 (only at an external ISDN connector in TE mode)
Media protocols
RTP
ISDN features
Operation directly at ISDN exchange lines or at ISDN extension lines of existing PBXs. Provision of exchange lines or extension
lines. ISDN supplementary services CLIP, CLIR, en- block dial and individual dialing with adjustable wait- time until completion.
Transparent pass- through of data services and ISDN facilities to control switching exchanges (in case of default ISDN interface
configuration). ISDN- UDI calls with G.722. Pass- through of service identifiers (BC, HLC, LLC) for ISDN- to- ISDN connections. PCM
bit- transparent coupling. Support for keypad facilities. Advice of charge (AOC- D, AOC- E). "DSS1 timing", "DSS1 NT reverse" and
"DSS1 NT point- to- point reverse" for ISDN clock synchronization with suitable PBXs. ISDN S0 buses can be collected into hunting
groups. Parallel operation of point- to- point and point- to- multipoint connections
Audio properties
Echo canceling (G.168), automatic adaptive de- jitter buffer. Inband tone signaling compliant with EU standards and countryspecific. DTMF support compliant with RFC 2976 (SIP info), RFC 2833 (RTP payload type/outband). Transparent pass- through
for negotiated codecs. Interaction on codec negotiation between subscribers (filter, quality/bandwidth) Voice encoding with
G.711 μ- law/A- law (64 kbps), G.726 (16, 24, 32, 40 kbps), G.722 high- quality codec, G.729 Annex A
Fax transmission
Transmisson of fax via SIP on the LAN side with T.38 or G.711, on the WAN/Internet side with T.38. Conversion of SIP fax with
T.38 and break- in/break- out at the outside line to ISDN G.711 with service signalisation. Connection and conversion to SIP T.38
or G.711 for ISDN fax machines.
Auto QoS
Automatic dynamic bandwidth reservation per SIP connection. Automatic selection of compression method depending upon
available bandwidth. Voice packet prioritization (CoS), DiffServ marking, traffic shaping (incoming/outgoing) and packet- size
management of non- prioritized connections compared to VoIP
VoIP management
VoIP Setup Wizard and configuration with LANconfig. Configuration and tracing with command line interface (remote or locally)
VoIP monitoring
Reporting of Call Data Records (CDR) via Syslog or e- mail. Status display of subscribers, lines, and connections. Logging of VoIP
Call Manager events in LANmonitor. SYSLOG and TRACE for voice connections. Active monitoring even of ISDN interface states
with SNMP
Routing functions
Router
IP, IPX and NetBIOS/IP multi- protocol router
VLAN
VLAN ID definable per interface and routing context (4094 IDs)
Q- in- Q tagging
Support of layered 802.1q VLANs
Advanced Routing and Forwarding
Separate processing of 8 contexts due to virtualization of the routers. Mapping to VLANs and complete independent
management and configuration of IP networks in the device, i.e. individual settings for DHCP, DNS, Firewalling, QoS, Routing
etc.
HTTP
HTTP and HTTPS server for configuration by web interface
DNS
DNS client, DNS server, DNS relay, DNS proxy and dynamic DNS client
DHCP
DHCP client, DHCP relay and DHCP server with autodetection
NetBIOS
NetBIOS/IP proxy
NTP
NTP client and SNTP server, automatic adjustment for daylight- saving time
Policy- based routing
Policy- based routing based on routing tags. Based on firewall rules, certain data types are marked for specific routing, e.g. to
particular remote sites or lines.
Dynamic routing
Dynamic routing with RIPv2. Learning and propagating routes; separate settings for LAN and WAN
LAN protocols
IP
ARP, proxy ARP, BOOTP, LANCAPI, DHCP, DNS, HTTP, HTTPS, IP, ICMP, NTP/SNTP, NetBIOS, PPPoE (server), RADIUS, RIP- 1, RIP2, RTP, SIP, SNMP, TCP, TFTP, UDP, VRRP
IPX
RIP, SAP, IPX and SPX watchdogs, NetBIOS watchdogs
WAN protocols
ADSL, Ethernet
PPPoE, PPPoA, IPoA, Multi- PPPoE, ML- PPP, PPTP (PAC or PNS) and plain Ethernet (with or without DHCP), RIP- 1, RIP- 2, VLAN
ISDN
1TR6, DSS1 (Euro- ISDN), PPP, X75, HDLC, ML- PPP, V.110/GSM/HSCSD, CAPI 2.0 via LANCAPI, Stac data compression
Interfaces
WAN: ADSL
ADSL over ISDN compliant with ITU G.992.1 Annex B (compatible to Deutschen Telekom U- R2 connections) or ADSL over POTS
compliant with ITU G.992.1 Annex A
WAN: ADSL2+
ADSL2+ over ISDN compliant with ITU G.992.3, ITU G.992.5 Annex B (ADSL2+) or ADSL2+ over POTS compliant with ITU G.992.3
and ITU G.992.5 Annex A (ADSL2+)
Ethernet ports
2 individual 10/100- Mbps Fast Ethernet ports; one can be switched as an additional WAN port with load balancing
- freely configurable
Each Ethernet port can be freely configured (LAN, DMZ, WAN, monitor port, off). LAN ports can be operated as a switch or
separately. Additionally, external DSL modems or termination routers can be operated as a WAN port with load balancing and
policy- based routing. DMZ ports can be operated with their own IP address range without NAT
USB 2.0 printer port
USB 2.0 full- speed host port for connecting USB printers via RAW- IP and LPD; bi- directional data exchange is possible (max. 12
Mbps, not for active- bus fed devices)
ISDN
4 ISDN ports S0 bus, NT/TE mode with cross- over adapter, switchable termination, switchable power relay on ISDN2
Serial interface
Serial configuration interface / COM port (8 pin Mini- DIN): 9,600 - 115,000 baud, suitable for optional connection of analog/
GPRS modems
LANCOM 1724 VoIP
Management
LANconfig
Configuration program for Microsoft Windows, incl. convenient Setup Wizards. Optional group configuration, simultaneous
remote configuration and management of multiple devices over ISDN dial- in or IP connection (HTTPS, HTTP, TFTP)
LANmonitor
Monitoring application for Microsoft Windows for (remote) surveillance and logging of the status of LANCOM devices and
connections, incl. PING diagnosis
Webconfig
Integrated web server for the configuration of LANCOM devices via Internet browsers with HTTPS or HTTP
Access rights
Individual access and function rights for up to 16 administrators
User administration
RADIUS user administration for dial- in access (PPP/PPTP and ISDN CLIP)
Remote maintenance
Remote configuration with Telnet/SSL, SSH (with password or public key), browser (HTTP/HTTPS), TFTP or SNMP, firmware upload
via HTTP/HTTPS or TFTP. A remote configuration for devices behind der LANCOM can be accomplished (after authentication) via
tunneling of arbitrary TCP- based protocols, e.g. for HTTP(S) remote maintenance of VoIP phones or printers of the LAN
ISDN remote maintenance
Remote maintenance over ISDN dial- in with calling- number check
Security
Access rights (read/Write) over WAN or (W)LAN can be set up separately (VPN only, Telnet/SSL, SSH, SNMP, HTTPS/HTTP), access
control list
Scripting
Scripting function for batch- programming of all command- line parameters and for transferring (partial) configurations,
irrespective of software versions and device types, incl. test mode for parameter changes
SNMP
SNMP management via SNMP V2, private MIB exportable by WEBconfig, MIB II
Timed control
Scheduled control of parameters and actions with CRON service
TFTP
TFTP client and server with variable file names (name, MAC/IP address, serial number)
Diagnosis
Extensive LOG and TRACE options, PING and TRACEROUTE for checking connections, LANmonitor status display, internal logging
buffer for SYSLOG and firewall events, monitor mode for Ethernet ports
Statistics
Statistics
Extensive Ethernet, IP and DNS statistics; SYSLOG error counter
Accounting
Connection time, online time, transfer volumes per station. Snapshot function for regular read- out of values at the end of a
billing period.
Export
Accounting information exportable via LANmonitor and SYSLOG
Hardware
Power supply
12 V DC, external power adapter (230 V)
Environment
Temperature range 5–35 ºhumidity 0–80 %; non- condensing
Environment
Temperature range 5–35 ºduring continuous operation; humidity 0–80 %; non- condensing
Housing
Robust synthetic housing, rear connectors, ready for wall mounting, Kensington lock; 210 x 45 x 140 mm (W x H x D)
Power consumption (max)
ca. 8.5 Watts
Declarations of conformity
CE
EN 55022, EN 55024, EN 60950
Package content
Manual
Printed User Manual (DE, EN) and Quick Installation Guide (DE/EN/FR/ES/IT/PT/NL)
CD
CD with firmware, management software (LANconfig, LANmonitor, LANCAPI) and documentation
Cable
Serial configuration cable, 1.5m
Cable
1 Ethernet cable, 3m
Cable
ADSL cable, 3m
Cable
2 ISDN cables, 3m
Adapter
2 ISDN cross- over adapters for S0 bus
Power supply unit
12 V DC, external power adapter (230 V)
Support
Warranty
3 years, support via Hotline and Internet KnowledgeBase
Software updates
Regular free updates (LCOS operating system and management tools) via Internet
Options
VPN
LANCOM VPN- 25 Option (25 channels, 50 configurable, incl. activated VPN hardware accelerator), item no. 60083
Service
LANCOM Service Option (24h advance replacement within Germany, 4 year warranty, not for PoE Power Injector), item no.
61401
VoIP extension
LANCOM VoIP Advanced Option (Upgrade to 32 SIP users in total), item no. 61617
LANCOM 1724 VoIP
Accessories
Documentation
LANCOM LCOS Reference Manual (DE), item no. 61700
19" Rack Mount
19" rackmount adapter, item no. 61501
Modem Backup
LANCOM Modem Adapter Kit, item no. 61500
VPN Client Software
LANCOM Advanced VPN Client for Windows® 2000, Windows® XP, Windows Vista™, single license, item no. 61600
VPN Client Software
LANCOM Advanced VPN Client for Windows® 2000, Windows® XP, Windows Vista™, 10 licenses, item no. 61601
VPN Client Software
LANCOM Advanced VPN Client for Windows® 2000, Windows® XP, Windows Vista™, 25 licenses, item no. 61602
VoIP Client Software
LANCOM Advanced VoIP Client for Windows® 2000, Windows® XP, Windows Vista™, single license, item no. 61610
VoIP Client Software
LANCOM Advanced VoIP Client for Windows® 2000, Windows® XP, Windows Vista™, 10 licenses, item no. 61611
LANCOM 1724 VoIP (Annex B)
61356 (suitable for UR- 2 standard ADSL connections in Germany)
LANCOM 1724 VoIP (Annex A)
61357
LANCOM 1724 VoIP (Annex A) UK
61358
www.lancom.eu
LANCOM Systems GmbH I Adenauerstr. 20/B2 I 52146 Wuerselen I Deutschland I E-Mail info@lancom.eu I Internet www.lancom.eu
LANCOM, LANCOM Systems and LCOS are registered trademarks. All other names or descriptions used may be trademarks or registered trademarks of their owners. Subject to change without notice.
No liability for technical errors and/or omissions. 11/07
Item numbers
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