LTRT-31902 AudioCodes Mediant 1000 MSBG with Microsoft Lync and Verizon SIP Trunk Configuration Note

3.9

Lync Server 2010 and Verizon SIP Trunk

Step 9: Configuring Message Manipulation for Call

Forwarding

This step describes how to configure Message Manipulation for Call Forwarding.



To configure SBC Header Manipulation Rules:

1.

Open the Manipulation Table page (Configuration tab > VoIP menu > SBC >

Manipulations SBC

> Message).

Figure 3-24: Message Manipulations Table

2. Index #0

defines manipulation of calls to modify a header. For any request received modify the Header.Diversion.URL.host with ‘195.189.192.138’

3. Index #1

defines manipulation of calls to add a header. For any Invite request received and IF a Referred-by header exists, then Add the Diversion Header with what was received within the referred-by header, '<'+header.referred-by.URL+'>'.

Each of these rules bind to a specific Manipulation Set ID as represented within this table. Indexes 0 binds to Manipulation Set ID 0 and Index 1 is bound to Manipulation

Set ID 1.

Note the following:



Index 0

was created for a specific call scenario where a PSTN user originated a call on the Verizon SIP Trunk to an Lync 2010 DID, which has its DID forwarded to the PSTN as well as have its presentation Restricted in the Source number manipulation tables. This was set to change the Diversion URL host from

'anonymous.invalid' to ‘195.189.192.138’, which is the WAN address of the device.



Index 1

is utilized to dynamically capture the original dialed number for Lync DIDs and present them back to Sprint when a call is forwarded back to the PSTN when creating a Diversion Header. This functionality can only be used if Lync Server

2010 is set up to send Referred-by headers. This specific index creates a new

Diversion header for the call using what was presented in the Referred-by header, thus allowing the Verizon service to receive the original dialed DID extension that forwarded the call back to the PSTN SIP trunk.

Configuration Note 68 Document #: LTRT-31902

Configuration Note 3. Configuring AudioCodes Gateway

These newly created message manipulation sets can now be assigned for use. There are several methods to perform this function. One method is to assign the functionality to the entire application via the ini file or via the AdminPage.

This functionality is configured using the parameters

GWINBOUNDMANIPULATIONSET = [1] and GWOUTBOUNDMANIPULATIONSET =

[-1].

When using these parameter settings, the respective Manipulation Set ID is assigned for all inbound and outbound manipulations. When using the IP to IP application, such as in this example, the manipulation for inbound messages must be performed at the gateway level, so therefore set GWINBOUNDMANIPULATIONSET = 1. The outbound message manipulation can be performed either at the gateway level or more dynamically, at the IP Group level.

This section describes the following procedures:



Assign inbound manipulation to the entire gateway via the ini file or via the

AdminPage. See Section 0 below.



Assign outbound manipulation to a specific IP group index. See Section 3.9.2

below.

Version 6.2 69 April 2012