Sorry, I've missed the -sn uas part of your command line.
The embedded UAS scenario does not answer the video offer in its SDP. So
if it otherwise suits your needs, the easiest way is to dump it to a
file using -sd uas instead of -sn uas, add the necessary description of
video stream to the SDP (using [media_port+2] to indicate where the
second RTP stream should be sent), and replace -sn uas by -sf
/your_file_name/ on your command line. The codec list in the video part
must respect the SDP offer sent by the Cisco. The easiest way to
visualize that SDP is to start sipp with the not-yet-modified scenario
file and the-trace_msg option and initiate a call from the Cisco. sipp
will write all the messages, including the initial INVITE received from
Cisco, to the message log file (/your_file_name_pid_/messages.log).
P.
Dne 2.9.2016 v 19:26 Šindelka Pavel napsal(a):
Can you paste here the SDP you have used in your scenario file? And
does the Cisco thing send an SDP offer in its INVITE or does it expect
one from the UAS?
Pavel
Dne 2. 9. 2016 6:47 PM napsal uživatel Morgan CHARPENTIER
<mcharpent...@owentis.com>:
Hello,
I’m trying to set a SIPp UAS in order to answer SIP calls from a
Cisco Callbridge and replicate both video and audio.
It works for audio but not for Video
Sipp is launched with
./sipp –sn uas –rtp_echo –mp 32768
From what I can see with tcpdump during a call :
-I Well see a rtp flow on UDP 32768 but I also see callbridge
initiating UDP packets to 32769. SIPP server answer with an port
unreachable icmp packet. I assume 32769 is RTCP and not
necessarily implemented on Sipp. So 32768 UDP should embed both
video and audio or video capability is not advertised to the
Callbridge.
Is there a configuration to be done on SIPp UAS in order to echo
both audio and video flows ?
Thanks much for your help.
Regards
Morgan
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