Extensions with asterisk begining

[albert-g]

Hello,
I am looking on creating extensions starting with asterisk like *10, *11, actually system allows me to create extensions and it is working, but I noted that corresponding voicemail is not creating since voicemail ID not accepting characters. The whole goal is to have internal extensions with asterisk beginning, so it will not interfere external short numbers. Can you please advise practices working with short numbers?
P.S. Maybe this idea is not good one, and there are more smarter ways.

 

[ad5ou]

Voicemail will only accept numbers for the mailbox ID. I know Mark had mentioned changing that few times but typical users need to be able to dial the voicemail box with the keypad available.

* and # are typically reserved for other features in the endpoint and/or pbx. *72/*73 *97 etc.

In the analog/digital PBX world numbering conflicts were a bigger problem. Extensions starting with 1xx could easily conflict with North American long distance dialing and many other number ranges could conflict with local or expanded region dialing. This is why most older PBX's used a prefix for outbound calls such as "9" or "8" plus the number/code to be dialed.
Most older PBX's would send the digits dialed as they were typed in or after a basic match. SIP devices may have number matching rules but typically send whatever the whole number is supposed to be so 120 no longer conflicts with 12015551212.

Not sure of which type of short codes you might be dialing, but a little imaginative numbering or a prefix might be the trick.

 

[albert-g]

@ad5ou Thanks a lot for your explanations. About type of short numbers, it is standard short numbers for police/fire service ..., it will be 3-4 digit numbers. As I understood, for today, processing of short numbers is possible only with the beginning of some prefix (I am not considering a method where I can reserve all known short numbers (depending whith country it is) and not create extensions with these numbers).

 

[albert-g]

Continuing this thread, can someone advise about call back part. When someone calling in and then I want to call back to his number using for ex. Yealink phone, but my outbound routes is set with prefix, so call is rejecting since not matching. How handle this part?

 

[ad5ou]

A few ways to deal with it.
Modify incoming callerId to include your prefix
Modify dialing options in the phone to add a prefix
Or my preferred way.. create outbound route that matches the way callerid is presented