Re: [Sipp-users] Playing OPUS media using RTP .pcap file

[sindelka <sin...@tt...>]

Hi Mokhtar,

there is a bunch of minor issues in your scenario (like use of static 
media port in the SDP instead of |[auto_media_port]|, declaring RTP 
payload 107 on the |m=audio| line but using 125 at the |a=rtpmap| line 
which will confuse the recipient of that SDP), but the actual reason why 
SIPp does not replay your audio.pcap is that the frames in it contain 
802.1Q (VLAN) headers. So use tcprewrite and tcpprep (on linux, I know 
no equivalent for Windows) to remove the VLAN headers and try again. Or 
it may be easier for you to capture another opus payload, specifying the 
VLAN interface rather than the whole Ethernet, this will provide a 
VLAN-header-less capture too.

Or, if you want, I may send you the modified file back :-)

P.