Hello,
We have a SIP trunk to our UC540 that works fine for it's main number (xxxxx689). However, when I call the secondary number (xxxxx973) on the line, the conversation gets delivered to the phone that is registered with the first number on the line. To me, the problem seems to be in the fact that the called number (xxxxx973) is only to be found in the To header of the SIP message: In the Invite header the main number (xxxxx689) is sent.
[quote]INVITE sip:xxxxx689@172.*.*.25:5060 SIP/2.0
Record-Route: <sip:213.*.*.68;lr=on;ftag=95875AC-223B>
Via: SIP/2.0/UDP 213.*.*.68;branch=z9hG4bKd0d2.ea666783.0
Via: SIP/2.0/UDP 213.*.*.69;branch=z9hG4bKd0d2.3fa15795.0
Via: SIP/2.0/UDP 212.*.*.245:5060;x-route-tag="cid:DMS-TRUNK@212.*.*.245";branch=z9hG4bK2ED4924F5
From: <sip:xxxxx144@test.*.com>;tag=95875AC-223B
To: <sip:xxxxx973@213.*.*.69>
Call-ID: 78794E10-E8A11E0-B3518A20-8F591572@212.*.*.245
Supported: 100rel,timer,replaces
Min-SE: 1800
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER
CSeq: 101 INVITE
Max-Forwards: 68
Contact: <sip:xxxxx144@212.*.*.245:5060>
Expires: 180
Allow-Events: telephone-event
Content-Type: application/sdp
Content-Length: 306
To-Hint: sip:xxxxx689@test.*.com
From-Hint: sip:xxxxx144@test.*.com
From-Number-Hint: sip:xxxxx144@test.*.com
P-hint: usrloc applied
Remote-Party-ID: <sip:xxxxx144@test.*.com>;party=calling;screen=yes[/quote]
When I look at the SIP trace of a different (completely working) trunk, I see that the subnumbers on the trunk get sent with the right number in the Invite and the To header. Based on this, I assume our UC540 uses the Invite header instead of the To header to judge where to send the conversation.
Also, the right translation-rule exists:
[quote]!
voice translation-rule 12
rule 1 /xxxxx689/ /824/
rule 2 /xxxxx973/ /800/
!
[/quote]
When I change the 824 to another number, it gets diverted to there. However, when I call the xxxxx973 number, I still reach the 824 number instead of 800 (voicemail).
So, is there a way to let my UC540 use the number in the To header instead of the Invite header? Or is this really something my SIP provider does wrong?
Thanks,
Ruud van Strijp
