[asterisk-dev] Asterisk NAT Prolem

[Dome C.]

Hi kevin,
It's work when i enable Universal Plug and Play(UPnP) Service in ZyXEL

Thanks you..

Dome C.

Kevin P. Fleming wrote:
> Dome C. wrote:
>
>>  >>Jan 20 00:00:20 WARNING[5473]: chan_sip.c:3424 process_sdp: Unable 
>> to lookup host in c= line, 'IN IP4 >>203.156.4.2200'
>>  >>Transmitting (NAT) to 203.156.4.220:17828:
>>  >>SIP/2.0 488 Not acceptable here
>
> The SDP coming from your device is broken. It's probably the 
> firewall/NAT device mangling the SDP to put external IP addresses into 
> it (which is not necessary, so turn it off).
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