Using in Different Networks

[t0neex]

Hello,

I could not see it in forums and guides. Can 3cx be used on ip phones in different networks? So can I call my friend's ip phone from my home ip phone? Does 3CX have such a configuration? Thank you very much for your answers. I wish you a healthy and happy day

 

[SteveITS]

If you're calling between extensions they can be anywhere, but there is some setup for STUN extensions (remote phone without an SBC).
I think you may be looking for Direct SIP?

 

[leejor]

You're going to have to be a bit more specific about what you are trying to do, and how you expect 3CX to be involved. By phones "in different networks", do you mean "using different providers"?

 

[ChrisC_3CX]

Hey @t0neex,

As @SteveITS said they can be anywhere and can call each other. However, depending on the location you would have to use a different configuration. For remote IP Phones there are two options SBC and STUN, from the two we highly recommend using the 3CX SBC.

You might want to consider going through our training material regarding IP Phone Provisioning:

Local IP Phones
https://www.3cx.com/3cxacademy/videos/basic/configuring-ip-phones/

Remote IP Phones
https://www.3cx.com/3cxacademy/videos/intermediate/configuring-remote-extensions/