asterisk users - Dec 2007 - Telco MWI Detection on TDM400 Interface?

I use a TDM400 card to interface with my telco.  I used asterisk voice 
mail.  However, if I'm on the telco line while another call comes in, 
obviously it cannot go to asterisk voice mail but instead bounces to the 
Telco voice mail.

Is there any means by which I can get asterisk detect the Message 
Waiting Indicator (MWI) from the telco?  Is there some application or 
variable which can be used to identify an active MWI from the Telco?

Thanks,

Jim

On Thu, 2007-12-20 at 16:29 -0500, Jim Duda wrote:
> I use a TDM400 card to interface with my telco.  I used asterisk voice 
> mail.  However, if I'm on the telco line while another call comes in, 
> obviously it cannot go to asterisk voice mail but instead bounces to the 
> Telco voice mail.
> 
> Is there any means by which I can get asterisk detect the Message 
> Waiting Indicator (MWI) from the telco?  Is there some application or 
> variable which can be used to identify an active MWI from the Telco?
Heh.  And go one step further and go retrieve the message from the Telco
and put it into an Asterisk voice mail message.  :-)

b.

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I'm reminded of the (Pagoo??) call waiting voicemail applet a while back.

Let me sum up how one might do this:  I'm using vitelity for an 800# 
DID... it's $0.50/mo plus time used, which is around $0.02/min maybe.  
get your asterisk box registered to your itsp so that when your 800# DID 
is dialed you enter the same dialplan your pstn callers fall into.   
voila, your home now has an 800#. 

Anyway, get your phone company to 'forward on busy' TO your 800#.  So 
when your home phone is busy, the caller will instead be connected to 
your asterisk via the internet and not even notice the difference (well, 
if they were long distance.  Local callers might wonder why your 
voicemail prompts sound like they're long distance though ;) )

I'm not being commercial about vitelity, just an example of what 
services they provide that could achieve this.

Mojo

Jim Duda wrote:
> I use a TDM400 card to interface with my telco.  I used asterisk voice 
> mail.  However, if I'm on the telco line while another call comes in, 
> obviously it cannot go to asterisk voice mail but instead bounces to the 
> Telco voice mail.
>
> Is there any means by which I can get asterisk detect the Message 
> Waiting Indicator (MWI) from the telco?  Is there some application or 
> variable which can be used to identify an active MWI from the Telco?
>
> Thanks,
>
> Jim
>
>
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