ARS from user/agent variable

[syntax1269]

1. Brekeke Product Name and version:
Brekeke PBX, Version 2.1.6.2 , Pro Evaluation

2. Java version:
1.5.0_14

3. OS type and the version:
Windows Server 2003

4. UA (phone), gateway or other hardware/software involved:
Software SJPhone, xlite, etc...

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html :
Pattern 9

6. Your problem:
would anyone know the variable for the from user in ARS?

Matching patterns:
from:
to:(.+)@

Deploy patterns:
From: "missing variable here"<sip:&v1@sip.server.com>
To: sip$1@sip.server.com

example:
if UA user 1234567 is making an outgoing call the Deploy patterns would be:
From: "1234567"<sip:&v1@sip.server.com>
To: sip$1@sip.server.com

any sugestions?
TIA!