[asterisk-users] Possible to get "Courtesy Tone" on attended transfer?

[Terry Wilson]

> Is there any way to provide the user receiving an attended transfer  
> with a tone or other audible indication that the transfer is  
> completed (i.e. Party A calls Party B, Party B announces the call  
> while transferring to Party C, Party C hears tone when Party B  
> completes the transfer so that they know that they are now talking  
> to Party A instead of Party B)?
>
If you are using builtin asterisk attended transfers (enabled in  
features.conf), then this is the behavior.  I don't believe there is a  
way to do this with native SIP transfers, currently.