[asterisk-users] SIP over 3G Mobile Network using NAT

[Jose Flores Galicia]

2014-10-09 8:42 GMT-05:00 Chirag Ajmera <chirag at ncc.co.in>:
> Dear,
>
> Kindly guide with the 2 issues mentioned below
>
> #1 - Host unreachable 0 last qualify 0 (only in 3G)
>
> I am trying to use SIP client over 3G. It registers and call can be
> initiated from the client but it can't receive call; cause asterisk sever
> marks it as unreachable immediately after registration.
>
> "[2014-10-08 14:32:47] NOTICE[1610]: chan_sip.c:29596 sip_poke_noanswer:
> Peer '1007' is now UNREACHABLE! Last qualify: 0"
>
> The above work well when I turn off 3g and switch over to my office wifi.
> Kindly guide if there are specific settings for 3G / mobile network.
>
> #2 - SIP retransmits - no reply to our critical packet
>
> Issue occurs when dialing a call out from a remote wifi network ( in my case
> office wifi ), Its auto disconnected within 10s with SIP Retransmissions
> notice / warning message
>
> However if a call is initiated from home local network ( ipad ) to the phone
> ( registered with asterisk over office wifi )... all works well !
>
> Kindly guide
>
> --
> Thank You
> Best,
> Chirag A.
>
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You must be aware of your security using PBX over internet!!!

Take a look at your externhost/externip and localnet settings
Set it properly, so asterisk can make SIP responses according to your
WAN or LAN connection.

Regards.
José Flores Galicia