[Asterisk-Users] Alert extensions without answering incoming call?

[Christian Lademann]

On Tue, 4 Nov 2003 14:06:43 -0800
John Todd <jtodd at loligo.com> wrote:

> >Hi, * gurus,
> >
> >I wonder if there is a way to alert the in-house extension(s) in case of an
> >incoming external call without actually answering it, before somebody picks
> >up the phone on one of the extensions? This way the caller wouldn't have to
> >pay for the call until somebody answers.
> >
> >Regards,
> >Christian Lademann
> 
> The Cisco 79xx series phones in SIP mode have a "distinctive ring" 
> that can be triggered from within Asterisk using the "ALERT_INFO" 
> variable.  They are the only phones that I am aware of that support 

Hello, John,

thank you for your answer.
How would this feature be used from extensions.conf?
(Sorry, if this looks like a newbie-question, in fact, it is one :-)

Regards,
Christian Lademann

> this SIP standard variable.
> 
> JT
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