I am searching for a solution to alter a SDP header to not send video capabilities to a SIP trunk provided by an ISP. The reason is that calls from a Cisco Jabber softphone fails for outbound calls, I receive a "media not acceptable here": inbound works fine.
Cisco Jabber => CUCM => SIP TRUNK => CUBE => ISP SIP TRUNK
Settiing up calls inbound works fine, using a cisco hardware phone (with no video capabilities) works fine for outbound calls. According to the ISP they do not allow that there is video capabilities in the SDP header!!!???? I want to make the ISP ignoring these SDP settings but that seems for them to be difficult. So, question is, can i remove the capabilities in the SDP header on the CUBE and if; how is that possible?
Received:
SIP/2.0 100 Trying
Via: SIP/2.0/TCP 213.XX.XXX.XXX:5060;branch=z9hG4bK62E317
From: "Jabber Windows" <sip:+45721XXXXX@213.83.148.132>;tag=5745F70-18E2
To: <sip:+45292XXXXX@62.121.XXX.XX>
Call-ID: E28CBEEB-3AF11E5-8D17E122-602BEEE3@213.XX.XXX.XXX
CSeq: 101 INVITE
Timestamp: 1432735365
Content-Length: 0
*May 27 14:02:45.990: //3186/3CA341800000/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 488 Not Acceptable Here
Via: SIP/2.0/TCP 213.XX.XXX.XXX:5060;branch=z9hG4bK62E317
From: "Jabber Windows" <sip:+4572XXXXXX@213.XX.XXX.XXX>;tag=5745F70-18E2
To: <sip:+452XXXXXXX@62.121.XXX.XX>;tag=hjVZ_.7DBhf3h7cA
Call-ID: E28CBEEB-3AF11E5-8D17E122-602BEEE3@213.83.148.132
CSeq: 101 INVITE
Timestamp: 1432735365
Content-Length: 0
Reason: X.int ;reasoncode=0x0000032D;add-info=05CC.0001.0004
Best regards
Brian
