I compiled SIPp v3.1 with PCAP support on 2 Linux clients and run the following
commands on each client:
Client 1 (IP 192.168.0.1): sipp -sf g711a_pcap.xml -users 2 192.168.0.2
Client 2 (IP 192.168.0.2): sipp -sn uas -mi 192.168.0.2 -rtp_echo
However from a network trace I do not see the RTP packets being echoed back
from the server to the client, i.e. I only see the RTP packets going from
client 1 (UAC) to client 2 (UAS).
SIPp shows the following on client 2:
0 Total echo RTP pckts 1st stream 0.000 last period RTP rate (kB/s)
0 Total echo RTP pckts 2nd stream 0.000 last period RTP rate (kB/s)
Any clue on how to troubleshoot the issue?
g711a_pcap.xml is pretty basic, it is the uac_pcap.xml file slighly modified,
here is an extract of the modifications:
<!-- Play a pre-recorded PCAP file (RTP stream) -->
<nop>
<action>
<exec play_pcap_audio="pcap/g711a.pcap"/>
</action>
</nop>
<!-- Pause 8 seconds, which is approximately the duration of the -->
<!-- PCAP file -->
<pause milliseconds="8000"/>
<!-- Play an out of band DTMF '1' -->
<nop>
<action>
<exec play_pcap_audio="pcap/dtmf_2833_1.pcap"/>
</action>
</nop>
<pause milliseconds="1000"/>
Thanks,
Antoine
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