Grandstream Networks GXV3350 Administration Manual page 53

Dial Plan
 Contact: It controls the pattern of dialing numbers from local or LDAP.
 Incoming call history: It controls the pattern of dialing numbers from
inbound call logs.
 Outgoing Call History: It controls the pattern of dialing numbers from
outbound call logs.
 MPK&Click2Dial: It controls the pattern of dialing numbers from MPK
app and the link on the webpage.
The default setting is unchecking all the cases.
Configures the dial plan to establish the expected number and pattern of
digits for a telephone number. This parameter configures the allowed dial-
plan for the phone.
Dial Plan Rules:
1. Accepted Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d,+
2. Grammar: x – any digit from 0-9;
a) xx+ or xx. – at least 2-digit numbers
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
h) \+ - add + to the dialing number
i) , - play second dial tone.

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+}
Allow 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 allow any length of numbers with leading digit 2, replacing the 2 with
011 when dialed.

Example 4: {0,x+}
If user dials 0 second dial tone will be played, and users can continue
entering digits. For instance, if pressing 01234, after pressing 0 second
dial tone is played, full number is sent in INVITE.
GXV3350 Administration Guide
Version 1.0.3.27
P a g e | 53