Polycom SIP 3.0.2 사용자 설명서

 Configuration Files

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This attributes also includes:

A digit map is defined either by a “string” or by a list of strings. Each string in 
the list is an alternative numbering scheme, specified either as a set of digits or 
timers, or as an expression over which the gateway will attempt to find a 
shortest possible match.
Digit map extension letter “R” indicates that certain matched strings are 
replaced. The following examples shows the semantics of the syntax:

• R9RRxxxxxxx—Remove 9 at the beginning of the dialed number

— For example, if a customer dials 914539400, the first 9 is removed 

when the call is placed.

• RR604Rxxxxxxx—Prepend 604 to all 7 digit numbers

— For example, if a customer dials 4539400, 604 is added to the front of 

the number, so a call 6044539400 is placed.

• R9R604Rxxxxxxx—Replaces 9 with 604

• R999R911R—Convert 999 to 911

• xxR601R600Rxx—When applied on 1160122 gives 1160022

• xR60xR600Rxxxxxxx—Any 60x will be replaced with 600 in the middle of 

the dialed number that matches
— For example, if a customer dials 16092345678, a call is placed to 

16002345678.

• 911xxx.T— A period (".") which matches an arbitrary number, including 

zero, of occurrences of the preceding construct
— For example:

91112 with waiting time to comply with T is a match
911123 with waiting time to comply with T is a match

9111234 with waiting time to comply with T is a match
and the number can grow indefinitely given that pressing the next 

digit takes less than T.

The following guidelines should be noted:

• You must use only *, #, +, or 0-9 between second and third R

• If a digit map does not comply, it is not included in the digit plan as a valid 

one. That is, no matching is done against it.