Advanced Sas Configuration; Manipulating Uri User Part Of Incoming Register - AudioCodes Mediant 600 User Manual

User's Manual
29.5

Advanced SAS Configuration

This section describes the configuration of advanced SAS features that can optionally be
implemented in your SAS deployment.

29.5.1 Manipulating URI user part of Incoming REGISTER

There are scenarios in which the UAs register to the proxy server with their full phone
number (for example, "976653434"), but can receive two types of INVITE messages (calls):

INVITEs whose destination is the UAs' full number (when the call arrives from outside
the enterprise)

INVITES whose destination is the last four digits of the UAs' phone number ("3434" in
our example) when it is an internal call within the enterprise
Therefore, it is important that the device registers the UAs in the SAS registered database
with their extension numbers (for example, "3434") in addition to their full numbers. To do
this, you can define a manipulation rule to manipulate the SIP Request-URI user part of the
AOR (in the To header) in incoming REGISTER requests. Once manipulated, it is saved in
this manipulated format in the SAS registered users database in addition to the original
(un-manipulated) AOR.
For example: Assume the following incoming REGISTER message is received and that
you want to register in the SAS database the UA's full number as well as the last four digits
from the right of the SIP URI user part:
REGISTER sip:10.33.38.2 SIP/2.0
Via: SIP/2.0/UDP 10.33.4.226:5050;branch=z9hG4bKac10827
Max-Forwards: 70
From: <sip: 976653434@10.33.4.226>;tag=1c30219
To: <sip: 976653434@10.33.4.226>
Call-ID: 16844@10.33.4.226
CSeq: 1 REGISTER
Contact: <sip: 976653434@10.10.10.10:5050>;expires=180
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUB
SCRIBE,UPDATE
Expires: 180
User-Agent: Audiocodes-Sip-Gateway-/v.
Content-Length: 0
After manipulation, SAS registers the user in its database as follows:

AOR: 976653434@10.33.4.226

Associated AOR: 3434@10.33.4.226 (after manipulation, in which only the four digits
from the right of the URI user part are retained)

Contact: 976653434@10.10.10.10
The procedure below describes how to configure the above manipulation example.
Version 6.6 433
29. SAS Configuration
Mediant 600 & Mediant 1000