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

[Mitul Limbani]

Remove Notify= setting in your sip.conf device section.
On 09-Oct-2014 6:52 PM, "Chirag Ajmera" <chirag at ncc.co.in> wrote:

>  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 !
>
>    *Issues with call sequence in a table form*  *Local Device* Asterisk
> SIP Server & Router with NAT Port Forwards iPad with Bria SIP Client
>
>   *Remote Device* iPhone with Bria SIP Client
>
>
>
>
>
>
>
>   *CALL SEQUENCE*  *Remote Network* *From * *To* *Works/Failed* *Issue*
> *3G* Ipad ( local ) Iphone ( remote ) FAILED Host unreachable 0 last
> qualify 0 !
>
>  Iphone ( remote ) Ipad ( local via NAT ) WORKS – both Audio & Video
>
>
>
>
>
>   *Office Wifi / Broadband* Ipad ( local ) Iphone ( remote ) WORKS – both
> Audio & Video
>
>  Iphone ( remote ) Ipad ( local via NAT ) FAILED SIP retransmits - no
> reply to our critical packet ! Call disconnects within 10s
>
> Kindly guide
>
> --
> Thank You
> Best,
> Chirag A.
>
> --
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