[VoIP] Missed Calls

[Paul Wills]

John,

Thanks.  That was definitely missing.  I added the port but need a few "cold calls" to test it.  (If you try it before 5:00 PM, don't call a human as my wife doesn't usually answer CNET calls.)

PDW



>From: "John R. Covert" <john_reads_cnet_via_archives at covert.org>
>Date: 2007/05/03 Thu PM 12:19:50 CDT
>To: CNET <voip at ckts.info>
>Subject: [VoIP] Missed Calls

>The behaviour Paul describes is exactly what would happen if his
>IAX2 port isn't forwarded.  Callers would attempt to connect to
>port 4569 at his firewall, which would ignore all calls (that
>explains the "Max retries exceeded" message John Novack reported).
>
>However, if there had recently been an outbound IAX2 call to the
>address of another CNET member, when that member calls back, the
>firewall would still have the IAX2 port open.
>
>Lee wrote:
>
>>5060 - SIP (I forward TCP/UDP since I can't remember which it is)
>
>SIP can be done with either, but it's universally done only with UDP.
>CNET doesn't use SIP.
>
>>4569 - IAX2 - UDP
>
>This is the main requirement for CNET.
>
>>10000 - 20000 - RTP - UDP
>
>But only if using SIP.  On IAX2 everything goes on 4569.
>
>>5036 - IAX - UDP
>
>No one uses this anymore.
>
>/john
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