Transfer call from 78xx phone series

[testspa]

we are experiencing a problem on phone 78xx series  when transfer a call.

When the 7861 telephone transfers a call and the called party does not answer, can not resume the call on hold.

I configure my sip profile in any particular way?

[Dragan Ilic]

This doesn't work for you by default:

You have 2 lines per phone?

HTH,
Dragan

[testspa]

Yes

In the button 1 i have a internal number with 4 max call connection and 1 busy triggered

[Gianmaria Taciturno]

We recently bought some 78xx IP phone and we found the same problem: when I try to transfer a call to another phone (either an internal or external phone) I cannot cancel the transfer, neither by pressing the line button nor the cancel softkey.

Once the cancel button is pressed the call is automatically diverted from the originating caller to the third phone, and is terminated on 78xx phone.

We already installed the latest CUCM version (9.1.2.11900) and phone firmware (sip78xx.10-1-1-9) but the issue is still present.

Hope it will be solved in next firmware update.

[Gianmaria Taciturno · Accepted solution]

It seems there's a known bug (CSCun04706) for call transfer on 7800 phone models.