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Dropped Call When Assistant Answers Line

Has anyone had anything similar to the following issue:

- Manager has single personal line

- Assistant has 2 lines: personal online 1 and manager on line 2

- Maximum number of calls is 4 and busy trigger is 2 on all lines.

- Lync is on both computers but calls are not being made/answered through Lync

- CUCM is V8.5 (also have Unity, ER, etc)


When Manager is on a call (either outbound or inbound), a second call comes into the manager line.

The assistant sees their line 2 blinking, picks up the receiver and selects line 2 to answer the call for their manager.

Manager's existing call is disconnected as soon as assistant picks up the receiver to answer the new incoming call.


Seems this occurs rarely, say once every few weeks or so. Try as we may, we have found no way for the assistant phone to drop the manager's call in any way shape or form.

Any ideas?


Thanks in advance,



  • IP Telephony
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