No Sound After 30 seconds

[Rashid Raza]

Dear All,

We are facing an issue while using 3cx Desktop App v18 i.e We are unable to hear Internal or external calls after 30 seconds.

Any prompt solution is appreciated.

 

[JohnS_3CX]

Hi Rashid,

Can you kindly double-check this? Make an internal call now if you can, and let it run over 30 seconds.

Normally this problem only affects external calls, not internal calls.

 

[YiannisH_3CX]

Hi @Rashid Raza

We will need some information regarding your setup before we can offer any insights so we can better assist you.
https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[Rashid Raza]

@JohnS_3CX

The issue is with Internal calls as well.


3CX Version, = Professional Perpetual 18.0.1880
Server OS, = Debian 10
3CX Server Hosted = Google intance
Provisioning Method = Local / SBC
Has the Firewall Checker passed = YES

 

[YiannisH_3CX]

Can you try calling *777 and see if you can hear your voice for further than 30 seconds?

 

[Rashid Raza]

I have just checked and I can't hear my voice after 30 seconds.

 

[YiannisH_3CX]

The next step is to add a mobile client on your phone, disable your WiFi and try the same test on 4G connectivity and see of you have audio with *777 after 30 seconds. That will eliminate some of the options for us

 

[Rashid Raza]

There is no issue with 4G and Other Internet Providers.

The issue is with one of our Internet Service LAN/Wifi.

 

[JohnS_3CX]

Hi Rashid,

Ok if 4G works then your PBX in Google is fine.

Find out why your local firewall is blocking the 3CX app traffic after 30 seconds.

 

[Rashid Raza]

@JohnS_3CX The Firewall is OK as on this Firewall Using Secondary Internet Provider there is no issue at all but with the Primary Internet we are facing this issue

 

[JohnS_3CX]

I see, in this case I hope the primary internet provider can assist you in troubleshooting.

You might have to get some captures first, filter them down to isolate the incident, and prove that they are the ones blocking the traffic.

 

[Rashid Raza]

How to get captures from 3CX.Kindly guide

 

[YiannisH_3CX]

https://www.3cx.com/docs/capture-network-traffic/

 

[Rashid Raza]

Thanks, I will check and get back to you.