[asterisk-dev] [Code Review] Adjust to allow for Digium phones' send to voicemail feature

Kevin P. Fleming kpfleming at digium.com
Thu May 17 11:25:20 CDT 2012

On 05/17/2012 10:53 AM, Simon Perreault wrote:
> On 2012-05-17 10:54, Mark Michelson wrote:
>> Contrary to the way this is likely done in other Asterisk
>> installations, sending a call to a contact's voicemail does not send
>> the call to a different extension than would be used for dialing the
>> contact. Instead, something must be available in the dialplan to
>> distinguish an incoming call that is intended for a phone vs. an
>> incoming call that is intended for voicemail.
> Could you please elaborate on why it's done differently? What's the
> benefit?

It was a design decision made by the team that developed the phone 
firmware. Unfortunately none of them participate here so I doubt we'll 
be able to glean that information out of them.

I can hypothesize one reason, though: this method puts the *entire* 
burden of deciding what 'Send to Voicemail' means on the server end. The 
phone only indicates its desire for that to happen, it doesn't need to 
be provisioned/configured with any special dialing information. 
Conceivably, this would reduce the need for synchronized 
dialplan/provisioning updates.

Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at www.digium.com & www.asterisk.org

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