<p>Hello Brian,</p>
<p>As I wrote, I was already aware of that. However I think it would make sense to improve the handling on the FS side because</p>
<p> - the response of FS is clearly faulty, if FS doesn't like the FB offer it could reject the call, but sending 200 OK with port 0 is incorrect. Especially when the SDP data in debugging is not the same as the data we see in the SIP packet</p>
<p> - though incorrect, the G722/16000 thing is not uncommon. According to some reports I googled Grandstream and others also misbehave in that way. Because FS is friendly, I'd suggest to answer the request for G722/16000 with G722/8000 and everything will probably just work out fine. By the way, the debugging output suggests that exactly this was the intent of the author - but there seems to be a bug that prevents this SDP from making it into the 200 OK packet.</p>
<p>Roland</p>
<div class="gmail_quote">Am 20.01.2012 17:37 schrieb "Brian West" <<a href="mailto:brian@freeswitch.org">brian@freeswitch.org</a>>:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">This would be because the AVM Fritzbox is broken. Its not G722/16000 its G722/8000 (even tho its a 16k codec).<div><br><div><div>On Jan 20, 2012, at 10:28 AM, Roland Hänel wrote:</div><br>
<blockquote type="cite"><span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium">It seems that FreeSwitch cannot negotiate G.722 with an AVM Fritzbox device<br>
(*the* most popular VoIP box/router in Germany) because of what seems to be<br>a concatenation of several bugs.</span></blockquote></div><br><div>
<span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Helvetica;word-spacing:0px"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Helvetica;word-spacing:0px"><div style="word-wrap:break-word">
<div><div>-- </div><div>Brian West </div><div>FreeSWITCH Solutions, LLC</div><div>Phone: <a href="tel:%2B1%20%28918%29%20420-9266" value="+19184209266" target="_blank">+1 (918) 420-9266</a> </div><div>Fax: <a href="tel:%2B1%20%28918%29%20420-9267" value="+19184209267" target="_blank">+1 (918) 420-9267</a></div>
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