Grandstream Networks GXP1450 User Manual page 53

Delayed Call Forward
FIRMWARE VERSION 1.0.5.58
b) xx. - only 2 digit numbers
c) ^ - exclude
d) [3-5] - any digit of 3, 4, or 5
e) [147] - any digit of 1, 4, or 7
f) <2=011> - replace digit 2 with 011 when dialing
g) | - the OR operand

Example 1: {[369]11 | 1617xxxxxxx}
Allow 311, 611, and 911 or any 10 digit numbers with leading digits 1617;

Example 2: {^1900x+ | <=1617>xxxxxxx}
Block any number of leading digits 1900 or add prefix 1617 for any dialed 7
digit numbers;

Example 3: {1xxx[2-9]xxxxxx | <2=011>x+}
Allows any number with leading digit 1 followed by a 3 digit number, followed
by any number between 2 and 9, followed by any 7 digit number OR Allows
any length of numbers with leading digit 2, replacing the 2 with 011 when
dialed.
Example of a simple dial plan used in a Home/Office in the US:
{ ^1900x. | <=1617>[2-9]xxxxxx | 1[2-9]xx[2-9]xxxxxx | 011[2-9]x. | [3469]11 }
Explanation of example rule (reading from left to right):

^1900x. - prevents dialing any number started with 1900;

<=1617>[2-9]xxxxxx - allows dialing to local area code (617) numbers by
dialing 7 numbers and 1617 area code will be added automatically;

1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11
digits length;

011[2-9]x - allows international calls starting with 011;

[3469]11 - allows dialing special and emergency numbers 311, 411, 611
and 911.
Note:
In some cases where the user wishes to dial strings such as *123 to activate
voice mail or other applications provided by their service provider, the * should
be predefined inside the dial plan feature. An example dial plan will be: { *x+ }
which allows the user to dial * followed by any length of numbers.
Defines the timeout (in seconds) before the call is forwarded on no answer.
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 53 of 80