IP Phones at multiple sites

[siscom]

Good Afternoon Colleagues
I hope you are doing good . I have a new customer that have multiple sites . The H.Q. will have 3CX Pro Edition installed with one IP Phone . There will be addition 4 to 5 sites with every site has one IP Phone. There is no VPN between IP Phones in the different sites and the H.Q.

Some sites will have Hard IP Phones and other sites will have Soft-phones.

Is the above solution is applicable ?

Best Regards

 

[complex1]

No problem.
Use STUN for each IP-phone one every site.
Depending on phone type (supported/unsupported) enable PBX delivers audio.

 

[siscom]

Thx complex1 for your replay . Does STUN can be configured on hard IP Phones or only on 3CX softphones ?

Best Regards

 

[complex1]

You can use STUN for remote IP-phones.
3CX softphones uses the tunnel.

 

[siscom]

Thx for your clarification