[Asterisk-Users] Camp on?

[Rich Adamson]

Andreas Sikkema wrote:
>> I believe what you refer to is called "Ring Back When Free" 
>> at least thats how I know it in the UK.
> 
> Ah yes, no I remember. We called it "Automatic Ring Back".
> 
> So we had "normal ARB", or "ARB on next use".
> 

Over the years, traditional pbx manufacturers have implemented multiple 
forms of camp-on and ring-back-when-free, and their marketing people 
tend to invent different terms for the same basic functionality.

Implementing either one in asterisk needs to consider other extension 
config info such as whether the extension has VM or not, whether the 
call came from the pstn or another local extension, etc.

Not likely either form can truly be implemented in a agi script without 
significantly impacting other pbx functions.