Call transfer with callback

Hello all,

I have been trying to think of a way that I can make calls that are transferred with the # key bounce back to the transferer after a period of time if the phone is unanswered.

Can somebody help me please?

Thanks in advance

Does somebody know if asterisk supports a call back function?

When i transfer a call to the second phone and nobody answers the second phone, can asterisk transfer the caller back to me?

Thanks for your help. :wink:

Today i tried the latest verion of asterisk (Asterisk
I included atxfernoanswertimeout = 5 in features.conf.

callback function doesn’t work. I don’t know what i’m doing wrong.
Anybody who can help me, please?

Ps: I’m using Grandstream GXP-2000 ip phones