[asterisk-users] callback on busy

[Richard Mudgett]

> I know the topic comes back like boomerang , but I did not find a
> nice solution.
> Does someone has/knows how to achieve "call back on busy" otherwise
> called camping?
> If one is calling the extension and it is busy, then caller should
> get something like "Press 5 to request call back" and after the
> previous call is finished the system should:
> 1) call caller
> 2) dial callee
> 
> or something similar ;)
> 
> This topic comes back so many times - I'm wonder if there is already
> a function for that implemented in asterisk (my current one is 10.5)
> Thanks in advance.

You want call completion which has been in Asterisk since v1.8:

https://wiki.asterisk.org/wiki/display/AST/Call+Completion+Supplementary+Services+%28CCSS%29

Richard