Hi,
I would like to write a 3pcc scenario where we use a UA to call SIPp,
and 3pcc to then call a media server. So, this is very close to the
standard 3pcc scenario, except it reads (plain text might be reqd here):
<!--
-->
<!-- A Controller B
-->
<!-- |(1) INVITE no SDP | |
-->
<!-- |==================>| |
-->
<!-- | |(2) INVITE offer1 |
-->
<!-- | |==================>|
-->
<!-- | |(3) 200 OK answer1 |
-->
<!-- | |<==================|
-->
<!-- |(4) 200 offer1 | |
-->
<!-- |<==================| |
-->
<!-- |(5) ACK answer1 | |
-->
<!-- |==================>| |
-->
<!-- | |(6) ACK |
-->
<!-- | |==================>|
-->
<!-- |(7) RTP | |
-->
<!-- |.......................................|
-->
<!--
-->
<!--
-->
In effect, this is two servers: one to receive the initial INVITE from
the UAC, and the second to to receive the <recvCmd> from this.
The script actually works so long as I give both sipp instances an IP
address. However, I would prefer to not to give the Controller (A-Side)
an IP address, and instead accept any IP address on this side, in the
same manner as a server. When I run this, however, I get the following
error
"Missing remote host parameter. This scenario requires it."
The MSD of the scenario is as follows:
Messages Retrans Timeout
Unexpected-Msg
INVITE <---------- 0 0 0 0
[ Sent Command ] 0
100 ----------> 0 0
[ Received Command ] 0
200 ----------> 0 0 0
ACK <---------- E-RTD1 0 0 0 0
[ Sent Command ] 0
BYE <---------- 0 0 0 0
[ Sent Command ] 0
200 ----------> 0 0
------------------ 3PCC Mode - Controller A side (passive)
--------------------
So, we are not in the server mode. Looking at the code, in sipp (3.0)
lines 4422 on:
if(!strlen(remote_host)) {
if((toolMode != MODE_SERVER)) {
ERROR("Missing remote host parameter. This scenario requires it");
}
} else { ....
So, it would appear that the reason this happens is that sipp can only
run in server mode while in server mode, and cannot mix server and 3pcc
mode.
My questions are:
1 - Is this intentional and just a limitation of SIPp, or have I missed
something?
Many thanks for reading and any responses in advance,
James
------
Dr. James Noonan,
SQA Engineer, Avaya
Phone: +353 1 6567853
Email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
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