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Version 6.2 45 December 2010
SIP Release Notes 1. What's New in Release 6.2
35. BRI Call Forwarding Supplementary Service:
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
Management Protocol
Web INI
SNMP
EMS
CLI
This feature provides support for call forwarding (CF) services initiated by ISDN Basic
BRI phones connected to the device. Upon receipt of an ISDN Facility message for call
forward from the BRI phone, the device sends a SIP INVITE to the softswitch with a
user-defined code in the SIP To header, representing the reason for the call forward.
The codes for the call forward can be defined using the following new parameters:
• SuppServCodeCFU - Call Forward Unconditional
• SuppServCodeCFUDeact - Call Forward Unconditional Deactivation
• SuppServCodeCFB - Call Forward on Busy
• SuppServCodeCFBDeact - Call Forward on Busy Deactivation
• SuppServCodeCFNR - Call Forward on No Reply
• SuppServCodeCFNRDeact - Call Forward on No Reply Deactivation
Note that these codes must be defined according to the softswitch (i.e., the softswitch
must recognize them).
Below is an example of an INVITE message sent by the device indicating
unconditional call forward (“*72”) to extension number 100. This code is defined using
the SuppServCodeCFU parameter.
INVITE sip:*72100@10.33.8.53;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.33.2.5:5060;branch=z9hG4bKWDSUKUHWFEXQSVOUVJGM
From: <sip:400@10.33.2.5;user=phone>;tag=DUOROSXSOYJJLNBFRQTG
To: <sip:*72100@10.33.8.53;user=phone>
Call-ID: GMNOVQRRXUUCYCQSFAHS@10.33.2.5
CSeq: 1 INVITE
Contact: <sip:400@10.33.2.5:5060>
Supported: em,100rel,timer,replaces
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCR
IBE
User-Agent: Sip Message Generator V1.0.0.5
User-to-User: 31323334;pd=4
Content-Type: application/sdp
Content-Length: 155