Solved Internal clients features do not work between each other

[saint_]

Hi all,

3CX hosted in the cloud.
When end clients call each other, features like transfer, hold, do not work. As soon as one client tries one of those option, the call hangs up.

Any trick for this to work ?

 

[Saqqara]

Need more info

What version and service pack of 3CX

How are the phones provisioned - via SBC, STUN

What phones, and how many at the office

 

[saint_]

Hi

Just trying out 3CX with 2 clients now.
One on macOS, one on iOS.

 

[lneblett]

It sounds like a NAT issue and that the re-INVITE is causing issues. Are the clients used in a mobile environment, moving around from location to location behind different firewalls?

You have provided a generic issue without much in the way of detail of how setup with regard to firewalls, hosting org, remote location and firewalls at same, tunnel, how connected with iOS, WI-FI, cellular, etc.

The best I can suggest is in the extension settings for each, turn on PBX delivers audio and disable reinvites and replaces and see. I suspect there is more and a wireshark capture would really help.

 

[leejor]

If using STUN, not behind an SBC, were they all given unique SIP ports?

 

[saint_]

It sounds like a NAT issue and that the re-INVITE is causing issues. Are the clients used in a mobile environment, moving around from location to location behind different firewalls?

You have provided a generic issue without much in the way of detail of how setup with regard to firewalls, hosting org, remote location and firewalls at same, tunnel, how connected with iOS, WI-FI, cellular, etc.

The best I can suggest is in the extension settings for each, turn on PBX delivers audio and disable reinvites and replaces and see. I suspect there is more and a wireshark capture would really help.

3CX is hosted in the cloud, with all the needed ports opened (443, 5000, 5001, 5015, 5060, 5090, 9000-10999)

The 2 clients are on the same network - Just a simple Mac, and a simple iOS.
I will try the 2 options you mention and will let you know.

 

[saint_]

A 3CX reboot did it. All features are working, transfer, hold, and internal users can call each other. This machine is hosted on debian. I won't touch anything now that it is working.. :/

 

[YiannisH_3CX]

Glad to see the issue has been resolved and thank you for updating the thread. Let us know if you face any more issues with this.