sorry - i do have already reconfigured the audiocodes gateway which was sending this - and it is already in production...<div><br></div><div>But i think the whole thing is also visible without trace, it is more a basic implementation question.</div>
<div><br></div><div>The question is - is it really a good idea to overwrite the audio port - when there is also a image port in the sdp ?</div><div><br></div><div>Here is the function i mean:</div><div><br></div><div><br>
</div><div><br></div><div><div>switch_status_t sofia_glue_tech_proxy_remote_addr(private_object_t *tech_pvt, const char *sdp_str)</div><div>{</div><div>        const char *err;</div><div>        char rip[RA_PTR_LEN] = &quot;&quot;;</div>
<div>        char rp[RA_PTR_LEN] = &quot;&quot;;</div><div>        char rvp[RA_PTR_LEN] = &quot;&quot;;</div><div>        char *p, *ip_ptr = NULL, *port_ptr = NULL, *vid_port_ptr = NULL, *pe;</div><div>        int x;</div>
<div>        const char *val;</div><div>        switch_status_t status = SWITCH_STATUS_FALSE;</div><div><br></div><div>        if (zstr(sdp_str)) {</div><div>                sdp_str = tech_pvt-&gt;remote_sdp_str;</div><div>
        }</div><div><br></div><div>        if (zstr(sdp_str)) {</div><div>                goto end;</div><div>        }</div><div><br></div><div>        if ((p = (char *) switch_stristr(&quot;c=IN IP4 &quot;, sdp_str)) || (p = (char *) switch_stristr(&quot;c=IN IP6 &quot;, sdp_str))) {</div>
<div>                ip_ptr = p + 9;</div><div>        }</div><div><br></div><div>        if ((p = (char *) switch_stristr(&quot;m=audio &quot;, sdp_str))) {</div><div>                port_ptr = p + 8;</div><div>        }</div>
<div><br></div><div>        if ((p = (char *) switch_stristr(&quot;m=image &quot;, sdp_str))) {</div><div>                port_ptr = p + 8;</div><div>        }</div><div><br></div><div>        if ((p = (char *) switch_stristr(&quot;m=video &quot;, sdp_str))) {</div>
<div>                vid_port_ptr = p + 8;</div><div>        }</div><div><br></div><div><br></div><div>As you can see - it first checks for audio port - writes it to port_ptr, then checks for the image port - and if it does exists (also if it exists - but is zero - which is legal) - it does overwrite the audio port.</div>
<div><br></div><div>So calls with sdp</div><div><br></div><div>m=audio 12123</div><div>and</div><div>m=image 0</div><div><br></div><div>will get dropped by freeswitch !</div><div><br></div><div>Thanks for you attention...</div>
<div><br></div><div>br,</div><div>Wolfgang</div><br><div class="gmail_quote">2013/3/22 Anthony Minessale <span dir="ltr">&lt;<a href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">post a trace with &quot;sofia global siptrace on&quot;<div>its too hard to diagnose without the exact trace.</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Thu, Mar 21, 2013 at 10:03 AM, Wolfgang Pichler <span dir="ltr">&lt;<a href="mailto:wpichler@yosd.at" target="_blank">wpichler@yosd.at</a>&gt;</span> wrote:<br>

</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">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 -&gt; Freeswitch does forward offer -&gt; asterisk does forward offer -&gt; 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&#39;t know why) - so also without the m=image sdp part - the ATA did answered correctly (without m=image part) -&gt; 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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