Best way to set up restricted courtesy extensions?

[mcbsys]

Hi,

I'm replacing an old Trixbox installation with PiaF at a small church. There are a couple of analog courtesy phones in public areas, connected to an FXS port on a TDM400 card. These phones should be allowed to call internal extensions and 911 only.

Here is what I've done in the past:

1. Set up an Outbound Route called 9_outside_911only with this Dial Plan:

911
9|911

2. Set up a Zap extension with a custom context called "from-internal-courtesy".

3. Add these lines to the top of /etc/asterisk/extensions_custom.conf:

[from-internal-courtesy]
include => ext-local
include => outrt-002-9_outside_911only
exten => h,1,Hangup

This seems to be working, but I don't like having references to auto-generated contexts, which might change e.g. if I add or resequence routes.

Is there a relatively simple way that I can do this directly in the UI without having to modify extensions_custom.conf?

Thanks for your help,

Mark

 

[jmullinix]

Try this.

In [from-internal-courtesy] do something like this:

[from-internal-courtesy]

exten => 911,1,goto(from-internal,${EXTEN},1)
exten => _XXXX,1,goto(from-internal,${EXTEN},1) ;change XXXX to your internal extension dial pattern. Leading "_" is important.
exten => .,1,hangup() ;hangup on all other calls

 

[mcbsys]

Thanks John. Internal extensions are 200 - 209 + 298. I'm assuming the idea that this will use the default Outbound Route? That has a dial pattern of "9|." (require 9 for an outside line), so I'm thinking that means the context would look like this:

[from-internal-courtesy]
exten => 911,1,goto(from-internal,9911,1) ; leading "9" will be trimmed by Outbound Route
exten => 9911,1,goto(from-internal,9911,1) ; in case they actually dial 9 + 911
exten => _20X,1,goto(from-internal,${EXTEN},1)
exten => 298,1,goto(from-internal,298,1)
exten => .,1,hangup() ;hangup on all other calls

Does that look right?

Mark

 

[jmullinix]

As they say here in the mountains, "I believe that dog will hunt." That looks perfect to me.

 

[mcbsys]

Thanks! I'll give it a try next time I'm on site.

 

[mcbsys]

As they say here in the mountains, "I believe that dog will hunt." That looks perfect to me.

That dog is now hunting. Thanks again!

 

[jmullinix]

Glad I could help. Have a great day.