Ext to Ext dialing between two sites using hosted cloud solution

[Roc1616]

We are having issues with ext to ext dialing between our two offices. Both offices have a separate gateway to the internet. Ext to Ext dialing works locally at each office just not between the two sites. We are using Nat at each site. I wanted to know if there are any inbound firewall rules we need to have set up in order to get site to site ext dialing working.

 

[coreybrett81]

Do you have SBCs inplace?

 

[leejor]

This uses two 3CX installations and a bridge trunk between them?

 

[eddv123]

If you are bridging you should only require the 3CX tunnel port to be forwarded, if you don't have a bridge setup I would get one configured sharpish.

 

[cobaltit]

It's unclear but I'm guessing it's a single cloud instance and the two locations have the same subnet. Probably just a matter of enabling PBX delivers audio for the extensions. And if not using a SBC I would install one ASAP