Removing RFC3407 related information from the SDP

Hello,

 

We're using a 4500 (SCX6.3.7m2p1) within a peering scenario.

 

Currently we're expierencing problems with 3CX endpoints which can't seem to cope with RFC3407. Is there an 'easy' way in the SBC (so maybe an 'options' parameter) to filter the RFC3407 related information from the SDP?

 

For example; in the 183 Session Progress:

 

v=0
t=0 0
m=audio 39000 RTP/AVP 8 101
c=IN IP4 92.93.94.95
a=rtpmap:8 PCMA/8000
a=fmtp:8 vad=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sqn: 0
a=cdsc: 1 audio RTP/AVP 8 101
a=cpar: a=rtpmap:8 PCMA/8000
a=cpar: a=fmtp:8 vad=no
a=cpar: a=rtpmap:101 telephone-event/8000
a=cpar: a=fmtp:101 0-15