[Freeswitch-users] No Media in SIP Calling from 3G Mobile Internet to Freeswitch

[Faisal Hanif]

Adding a stun can help too, if it is Linphone on Android then please add
stun.linphone.org in stun settings further disable AVFP & ICE

On Sat, Feb 2, 2019, 9:32 AM Alexey Sibyakin <alex at freeswitch.com wrote:

> Hi,
>
> Yes, that sounds like a network (NAT/Firewall) issue. Your mobile provider
> may use a chain of several NATs and not every one of them is working
> properly. Try VPN or another SIP client.
>
> Regards,
>
> Alex
>
> Alex Sibyakin | Support Engineer SignalWire | 228 Hamilton Ave 3rd Floor,
> Palo Alto, CA 94303 Email: alex at freeswitch.com Website:
> https://www.signalwire.com
>
>
>
> On Sat, Feb 2, 2019 at 2:44 AM Chhorm Chhatra <ch.chhatra at gmail.com>
> wrote:
>
>> Hi,
>> Currently, I face an issue that I could not hear the audio sound at all
>> when I try to call to FreeSWITCH (9386) via its public domain name from the
>> SIP client of my mobile phone with mobile internet.
>> In this case, SIP registration with TLS and media encryption with SRTP is
>> working perfectly because I could see the secure symbol in Linphone *but* I
>> could not hear any audio at all. After 30 seconds of the silent call, it
>> hanged up automatically.
>>
>> *SIP Client on the 3G Mobile Internet > Freeswitch (tls:voip.test.com
>> <http://voip.test.com>, SRTP) *
>> *SIP Registration Sucess, Call No Media*
>>
>> My question is that is this the problem of NAT? If so, it would be great
>> if you could help me solve this problem.
>> Any help would be really appreciated.
>>
>> Best regards,
>> Chhorm Chhatra
>> _________________________________________________________________________
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>
> _________________________________________________________________________
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
>
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