[Asterisk-Users] AMP/A@H (asterisk at home) custom incoming routing

[Tom Rymes]

Folks,

First off, this is messy, and I hope someone will be kind enough to  
help me clean this up (the part added to extensions_additional.conf).  
You've been warned!

For those of your using AMP or A at H, there has been a lot of talk  
about how to route incoming calls to different places based on which  
trunk is ringing. The standard answer is that you can only do this by  
using DIDs, which is all fine and good, unless you are using a plain  
old copper line that doesn't support DID. Anyhow, I have figured out  
how to make a call that comes in on a specific ZAP channel ring at a  
specific extension (not that it was brain surgery). I'm not certain  
if it would be better to use the file extensions_custom.conf instead  
of extensions_additional.conf, does anyone know?

I have an A at H box with an unused TDM11P card in it at home in my  
basement. The A at H box normally handles incoming calls for my small  
business, but I wanted to plug my home phone line into the FXO port,  
and all of my phones into the FXS port (They're cordless, so no  
worries about ringer equivalence, etc.). That way I can route  
outgoing calls over VOIP, but my incoming calls will still ring my  
home phones. The hitch with A at H was that AMP doesn't allow you to  
differentiate between incoming calls from Broadvoice (or wherever)  
and incoming calls on the FXO port. I wanted incoming calls on my  
home line to ring to ring the extension associated with the FXS port  
on my TDM card. All other incoming calls should still follow whatever  
I set up in AMP, since that is how I control where my incoming  
business calls go.

Here's what I did. I know that you aren't supposed to use the  
extension "_." but that is the only way I got it to work. Please let  
me know if there is a better way.

1.) Edit /etc/asterisk/zapata-channels.conf and change the context  
for your incoming port to something new. I used "tdm-in".
2.) Edit pico /etc/asterisk/extensions_additional.conf and add this  
at the bottom:

[tdm-in]
exten => _.,1,Goto(ext-local,200,1)    ;
3.) If you haven't already, add the ZAP channel as a trunk in AMP so  
you can make outgoing calls on this channel.

That's it,

Tom