[OpenSIPS-Users] Getting NOTIFY on UDP while using transport as TCP

surya chauhan.suryaveer at gmail.com
Tue Dec 22 06:27:02 CET 2015


I am testing opensips presence server 1.8.3 using sipp. I am using TCP as
the transport. When I send SUBSCRIBE, 200 OK is received fine but the NOTIFY
is sent on UDP.

When testing from 2 SIP clients it works fine on TCP. Is there something
special to take care while testing TCP from SIPP?

Below is the command and scenario file.
*./sipp -t t1 -sf sn.xml -m 1 -i*
<?xml version="1.0" encoding="ISO-8859-1" ?>
<scenario name="subscribe">
  <send start_rtd="1">

  <recv response="200">

  <recv request="NOTIFY" rtd="1">

   <send crlf="true">


I am not able to figure out what the problem is. I suspect it is something
to do with sipp but not sure.
I couldn't find anything on internet, hence, posting here.


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