Solved No audio on external call in local lan

[Petersang]

Hello i have an issue rtp in local lan when im making a extenal call.
Who have this problem like me. ?

 

[Saqqara]

You need to provide more info on the setup - please answer these questions https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

Does the firewall test pass ?

Do you get audio on internal calls ?

 

[Petersang]

3cx v18 on premise
Sip trunk mode : generic
Port fordarding all ok and externally good
The problem in local lan

 

[leejor]

The problem may not be in the local LAN if internal calls have no issue, but external calls do.
Did this work at one time?
Does the problem also occur on incoming external calls?
Did you change Codecs on the external trunk?
Have you had a look at the 3CX Activity Log, for one of the calls, to see if it is of any help.?

 

[Petersang]

Rtp issue When i make an outbound call over lan network, but when i make outbound call from external everything is good

 

[Saqqara]

What handsets and how have you provisioned them

What happens when you do an echo test , dual *777 - do you heard everything

Are the handsets on the same ip network range as the 3cx server.

What happens if you tick ‘ PBX delivers’ under the extension

 

[VasilisV_3CX]

Hi @Petersang,

Can you confirm that the firewall checker has passed?
What device are you using when making these calls? Are you using IP Phones? If yes, how are they provisioned? (STUN? Local? via SBC?)
Can you confirm *777 works?

Could you provide all of this information: https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[Petersang]

the problem valisis i dont have an issue from out of office the issue in my lan network (VPN SITE TO SITE ) windows app (no audio ) webclient (works)
the problem i have in windows app.

 

[VasilisV_3CX]

Hi @Petersang,

Try closing down the Windows client entirely (ending the process) and then connecting to your VPN. Once connected, then launch the Client.

This may or may not work. If it doesn't work, try and use the Desktop App going forward as the Legacy Windows Client will eventually be phased out.

 

[Petersang]

the problem if i make the call in waiting then i go back the call the issue is done.

 

[Petersang]

the problem solved the voice vlan is nattet on other vlan on the firewall, we change the vlan and all works

 

[VasilisV_3CX]

Awesome, glad to hear it @Petersang.