SIPp
Add a log when sipp scenario ends due to rtp or echo errors
Previously, when got some rtp/echo errors, sipp returned a failure code upon successful completion of xml scenario.
Now it returns success if xml scenario completes, and just logs rtp errors.
related to #569
Let's see if I understood correctly:
If an SIPp xml scenario completes successfully from SIP point of view, but it had rtp errors, it should return (EXIT_TEST_OK|EXIT_RTPCHECK_FAILED)...
... and then, on OS side, check the return code of last ran (sipp) command and take out the EXIT_RTPCHECK_FAILED (e.g. $? & ~EXIT_RTPCHECK_FAILED) ?
If that is the case, I don't agree with it. Because an end user will see sipp scenario complete ok but "$?" OS var will be != 0. So basically, sipp scenario failed, even if you see it completing successfully. That would be misleading, imho. Logging an warning but still succeeding would be more clear, imho.