Ring Group missed calls

[Yealink Support]

I have tested the steps with 3CX in my side. It seems that the 3CX doesn't have Group DPickup code.
So we can't pick up a group call.
you can set BLF monitor the phone in the same group. For example,
1.set BLF in A phone to monitor B, you can set value=B number, extension=*20*.
2.A and B are in a group which group number is 8000.
3.C call group 8000, then A and B all will ring.
4.Press the blf button, then you can pickup the group call.

thanks