Fax wont register

[RossFS]

Hi,

Version 16 hosted.

I have a physical fax machine, that I am connecting to the 3CX system using an ATA.

I can connect it as a regular extension, but if I try to create a fax extension and connect it to that (which I presume is the correct thing to do), the registration fails:
; Reason: Credentials don't match, check that authorization-ID and password match the ones in extension settings

I have checked the credentials, and tried different sets of credentials.

The fax/ATA will register using the same credentials, as long as I create a normal extension.

Any suggestions?

 

[JohnS_3CX]

Hi Ross,

What type of ATA are you using? Please note that for this to work the device must be local to 3CX, in the same subnet and/or locally routed subnet (including site to site VPN)

 

[RossFS]

Hi, we are using the VOIP port on our VDSL modem. The 3CX server is not local, it is hosted in the cloud.

The Fax machine connects fine as a normal extension.

Are you saying that even though 3CX supports extensions on a non-local subnet, the same is not true for a fax? This doesn't seem right.

 

[JohnS_3CX]

Yes, faxing is only supported on local ATA devices.

To use a supported ATA you will need a VPN between the two sites so the ATA appears local to your PBX.