Call busy signal not working when Call is forwarded to extenal number

[FREDRICKMUMBA99884]

Greetings of the day Everyone,

SCENARIO:

I have forwarded calls to my an external number, when a call is made to the phone, call forwarding is working fine.

Buh when A second call comes while the first call is still in session, the second caller is not told that the line is busy.

As a result, they think like they are being ignored.

Without call Forwarding, the number busy is working okay.

Only with forwarding I am having this issue.

I am using CUCM v14.0 and Cisco 4451 ISR as Gateway.


Your inputs will highly be appreciated.

Regards.

[b.winter · Accepted solution]

Then you have to check the busy settings on your external phone. This has nothing to do with your settings in your CUCM or CUBE
If you don't signal a busy there, how should a "busy signal" be provided all the way back?

[b.winter]

@FREDRICKMUMBA99884 Any update here or just a dead post?

[FREDRICKMUMBA99884]

Hai Winter,
Apologies  for the late response.

Thank you for your input.

It is appreciated.

Kind regards.