FAX Default Caller ID

[Flash99]

I'm using 15.5
I have two FAX Extensions and I set Default Caller ID on both of them
However when we send FAXes from any one of them it shows our main number and not the CID I set for these extensions.

When I create a regular extension and set CID there it shows correctly

Any idea whats wrong ?

Thanks

 

[sip.bg]

May be not working as expected, I can also confirm that main number of the trunk is used.

 

[eddv123]

Providing the SIP provider accepts this as valid you should only need to set the Outbound CallerID on each Extension.

Here is more detailed guidance including more advanced options.
https://www.3cx.com/docs/multiple-outbound-caller-ids/

What gateway or ATA are you using for your FAX machine, what is the make and model ?

 

[sip.bg]

Providing the SIP provider accepts this as valid you should only need to set the Outbound CallerID on each Extension.

Here is more detailed guidance including more advanced options.
https://www.3cx.com/docs/multiple-outbound-caller-ids/

I'm using outbound caller-id, taken from extension settings, this works OK for regular extensions, but not for fax extensions for some reason, despite of specific caller-id set for fax extension.

 

[Flash99]

I'm using outbound caller-id, taken from extension settings, this works OK for regular extensions, but not for fax extensions for some reason, despite of specific caller-id set for fax extension.

Same here
Setting it on regular extension works fine. So there is no problem with SIP provider
Setting it on FAX extension doesn't work

 

[eddv123]

Interesting ....

Which make and models of gateways are being used here ? This seems to be working fine for me via a Patton SN4112 Gateway, however please specify which Caller ID you are referring to the actual Caller ID or the number displayed at the top of the fax ?

As a general rule I would not recommend FAX with 3CX using single port ATA's.

 

[Flash99]

Interesting ....

Which make and models of gateways are being used here ? This seems to be working fine for me via a Patton SN4112 Gateway, however please specify which Caller ID you are referring to the actual Caller ID or the number displayed at the top of the fax ?

As a general rule I would not recommend FAX with 3CX using single port ATA's.

I don't think it has anything to do with the ATA or to the fact its FAX
Just like in regular extension I can use soft phone or any other supported phone and if I set CID on 3CX it will work (3CX sets the CID and not the phone)
Same is here with FAX extension, even if I connect a regular phone to it and just make a call it still shows main trunk number and not the CID that was set on 3CX.

As far as I understand its 3CX bug and would be interesting to hear what 3CX has to say about it

 

[sip.bg]

Interesting ....

Which make and models of gateways are being used here ? This seems to be working fine for me via a Patton SN4112 Gateway, however please specify which Caller ID you are referring to the actual Caller ID or the number displayed at the top of the fax ?

As a general rule I would not recommend FAX with 3CX using single port ATA's.

This has nothing to do with fax header, etc.
The question is about caller-ID transmitted over SIP protocol.

 

[leejor]

Does that ATA you are using for the fax machine, have a field to fill in the number to be displayed? Perhaps that may work.

 

[sip.bg]

Even it has, it is ignored by PBX, as with ATAs used for regular extensions for example, as well as IP phones -- the extension settings in PBX override endpoint device settings. Outbound Caller-ID is something to be controlled by PBX, at least in 3CX implementation.

 

[YiannisH_3CX]

Hello there

Please note that this is a known issue that is currently being investigated by our R&D department. However we can only replicate the issue when using Originator caller ID. When using outbound caller ID fax extension CID is being sent correctly.

 

[Flash99]

Hello there

Please note that this is a known issue that is currently being investigated by our R&D department. However we can only replicate the issue when using Originator caller ID. When using outbound caller ID fax extension CID is being sent correctly.

Thanks. I can confirm that changing to outbound caller ID works.