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

[Chhorm Chhatra]

Dear Alex and Faisal,
Thank you so much for your suggested solutions.
In my case, there were some issues with firewall rules. I had to allow the
UDP and TCP ports for SIP and RTP signals.
For more information to those who might face the same problem, please see
the attached image.

Best regards,
Chhorm Chhatra


On Sun, 3 Feb 2019 at 04:27, Faisal Hanif <imfanee at gmail.com> wrote:

> 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
>>> _________________________________________________________________________
>>> 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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>>> https://freeswitch.com
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Services
>> sales at freeswitch.com
>> https://freeswitch.com
>>
>> Official FreeSWITCH Sites
>> https://freeswitch.com/oss
>> https://freeswitch.org/confluence
>> https://cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> https://freeswitch.com
>
> _________________________________________________________________________
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> https://freeswitch.com
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