_______________________________________
From: Steve Edwards [steve.m.edwa...@ntlworld.com]
Sent: Tuesday, 6 March 2012 11:30 p.m.
To: sipp-users@lists.sourceforge.net
Subject: [Sipp-users] Registration for a server
Hi
Sorry if this is a dumb question, but I want to run SIPp with a scenario that
registers (including authentication), and then behaves as a server to receive
incoming calls.
REGISTER -------->
<--------- 401 auth="true"
REGISTER -------->
<---------- 200
<---------- INVITE
etc
It registers OK, but then when it receives an INVITE, it discards this an
unexpected message because the tags don't match those used in the registration.
Any help would be much appreciated.
Kind regards,
Steve Edwards
===
Steve,
I had the same problem. Scripts are either UAC or UAS. But when there are
registrations ot handle you need a combination of the two: one that assigns
it's own call_id (UAC) to register, and one that receives the call_id from the
far end with the initiating message to terminate an incoming call.
My interim solution was to wrap the whole thing in a shell script:
#!/bin/bash
sipp 1.2.3.4:5060 -sf register.xml -inf mynumber.csv -l 1 - m 1 -p 5060
sipp 1.2.3.4:5060 -sf called_party.xml -inf mynumber.csv -l 1 -m 1 -p 5060
to run the two scripts in series.
This is fine except for 2 scenarios:
1) if you have a short registration timeout
In my case I had to reregister every minute, so this only gave me 1 minute to
run my called_party script before the registration expired
2) If you use SIP over TCP
I also had to test SIP over TCP support against a broadsoft platform.
Broadsoft deregister the endpoint as soon as they receive the FIN for the TCP
session used to register - so the above solution does not work since the TCP
session is torn down as soon as the register script finishes.
3) If you / the SBC / the proxy need to send OPTIONS pings as keepalives.
You can use -aa to answer these, but sending them is difficult in the above
scenario
There are scripting acrobatics that can fudge the 1st / 3rd scenarios above -
sticking reregisters and options through your called_party script to keep
registration alive, for example.
However, the better solution seemed to be to modify SIPP to allow two
scripts/scenarios to run concurrently - one handling registration and one
terminating calls. Which is what I did in the end. See post: 5645 for the
patches and for details. (Re: [Sipp-users] New feature / solution: Enabling a
mixture of server-mode and client mode operation simultaneously)
Matt
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