Hi

I have asked this question before with no real solution and then I stumbled across this posting on the 3CX website, as they seem to have good support manuals for FXO gateways like the GXW410x.

This is exactly the problem I am having. For those of you with a lot more in-depth knowledge, how would this translate into FreeSWITCH speak?

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ADDITIONAL NOTES:

When receiving an inbound call on the GXW4104/4108 which is then diverted to an external number via the 3CX configuration, if the GXW4104/8 is used for the diverted call the GXW will stop sending SIP signalling to 3CX. This is a known issue with the GXW. As a workaround, in the 3CX User Interface, edit the Grandstream device, go to the "Advanced" tab, and enable the "PBX delivers audio" option.

Please note that applying this workaround will no longer allow inbound or outbound faxes to be delivered over the Grandstream device – so you will need a separate dedicated device/line for delivering faxes.

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Thanks in advance
O