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[j.rupp at onecue.de]

Hello,



We've a problem with the caller id in one transfer scenario:


In our Example Party A calls Party B, Party B answers the call and transfers it to Party C. We're talking about the Caller ID in the phone of Party C now.
If B is doing an attended or unattended transfer, the caller id ist updating correctly as you would expect it.


But there's a third scenario, which is very common for users of older PBX systems: A so called "semi-attended transfer".
This means, that Party B is initiating A attended transfer via BLF Key, but hangs up, before Party C has answered the call.
In this case, the Caller ID should update to Party A, as soon as B hangs up his phone.
But this is not happening: The Caller ID remains on Party B until C answers the call. Only then the caller id is updated.


Why is the caller id not updated after B hangs up and before C answers the call?
Is there any possibility to change this behaiviour?







Thanks for your help
Joshua

[brian at freeswitch.com]

There is no such thing as a semi attended transfer, doing that transfer in early media is NOT valid, its against the RFC... the fact it even works is a trick we do, technically we should just hang up.  Your best bet is to disable that transfer in the device.

/b




On Mon, Feb 1, 2021 at 9:14 AM Joshua Rupp <j.rupp@onecue.de (j.rupp@onecue.de)> wrote: