<div dir="ltr">post a trace with "sofia global siptrace on"<div style>its too hard to diagnose without the exact trace.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Mar 21, 2013 at 10:03 AM, Wolfgang Pichler <span dir="ltr"><<a href="mailto:wpichler@yosd.at" target="_blank">wpichler@yosd.at</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<div><br></div><div>i have encountered a strange behaviour - and i think i have found a possible problem within sofia_glue</div>
<div><br></div><div>Following scenario:</div><div><br></div><div>Carrier sends INVITE with T38 Offer -> Freeswitch does forward offer -> asterisk does forward offer -> ATA</div>
<div><br></div><div>In this scenario it happend to me - that the T38 Offer (with corrent m=image and port in sdp) got forwarded by freeswitch to asterisk, asterisk did forwarded without the T38 Offer (don't know why) - so also without the m=image sdp part - the ATA did answered correctly (without m=image part) -> asterisk did created a new sdp with m=image 0, without T38 parts - and returned this to freeswitch.</div>
<div><br></div><div>Freeswitch did hangup the call - because sofia_glue did extracted the port 0 as audio port - and this is not a legal port...</div><div><br></div><div>Sending port 0 is according to rfc legal - so freeswitch should ignore it in this case.</div>
<div><br></div><div>the question is - if both values are given - which one is the value we need ? I think the audio port is the port which is of higher priority.</div><div><br></div><div>So the workflow should be:</div><div>
- Try to extract audio port from m=audio part.</div><div> - If you got it - and it is a valid port then go on</div><div> - else try to extract audio port from m=image part...</div><div><br></div><div>The function in question is sofia_glue_tech_proxy_remote_addr - in sofia_glue.c</div>
<div><br></div><div>Is it generaly a good idea to use the m=image part as audio port ? Why is there no direct image port member in the pvt structure as with the video port ?</div><div><br></div><div>Hope someone can help here...</div>
<div><br></div><div>br,</div><div>Wolfgang</div>
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