Long Distance Security Access Code & ARS Symbols Signifi

1. Brekeke Product Name and version:
Brekeke PBX 2.4.9.0 available


3. OS type and the version:
Windows 2008 Server

4. UA (phone), gateway or other hardware/software involved:
Quintum


6. Your problem:
In our country international calls has the number "0" as a prefix, my customer is asking me to define a security code that let the ARS (I imagine???) to avoid or permit to the end user the dial of international calls based upon the authorization code.

Also I would like to have access to any tech document that let me understand the significance and use of the symbols like e.g. $ ^ [] {}

Help will be appreciatted

create an ARS pattern-IN to catch international call from user and route call to an auto attendant
customize auto attendant greeting to ask user input security-code + destination number,
such as security code is 1111
set auto attendant:
speed dial: 1111(.+)=$1
transfer to unregistered users: disable

if user input security code correct and destination number with prefix 0, the call will apply ARS pattern-out for international call.

http://www.brekeke-sip.com/download/bss ... min_en.pdf
page48
it is using regular expression

Hi,
Thanks for your prompt reply, but I have several concerns that maybe some of you could help me to deal with it.

Because the customer needs to make a call, is my understanding that the patter must be out and not in, am I right?

Unfourtunately our customer ask to dial 9 to take the trunk line (as prefix)

I appreciatte your suggestions

if there is only ars pattern-out and caller dial destination number as 9+0+destination number
the call will be sent to pstn line through the pattern-out

for ask for access code when making call through the pattern-out to pstn line
need to add a pattern-in to route all calls with dialing number as 90+destination to an auto attendant first and
this auto attendant will ask caller to enter security code + dialing number(90destination) again
if security code is the same as the first few digits in auto attendant speed dial setting as post above the call with apply the pattern out and sent to pstn line
otherwise, caller cannot make outbound calls