Grandstream Networks, Inc. GXW4024 User Manual Page 29 of 35
Firmware 1.0.1.8 Last Updated: 5/2008
Dial Plan Dial Plan Rules:
1. Accept 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+ - at least 2 digits number;
b. xx. – at least 2 digits number;
c. ^ - exclude;
d. [3-5] - any digit of 3, 4, or 5;
e. [147] - any digit 1, 4, or 7;
f. <2=011> - replace digit 2 with 011 when dialing
• Example 1: {[369]11 | 1617xxxxxxx} –
Allow 311, 611, 911, and any 10 digit numbers of leading digits 1617
• Example 2: {^1900x+ | <=1617>xxxxxxx} –
Block any number of leading digits 1900 and add prefix 1617 for any dialed 7 digit
numbers
• Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} –
Allow any length of number with leading digit 2 and 10 digit-numbers of leading digit
1 and leading exchange number between 2 and 9; If leading digit is 2, replace
leading digit 2 with 011 before dialing.
3. Default: Outgoing - {x+}
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 - allow dialing special and emergency numbers 311, 411, 611 and 911
Note: In some cases user wishes to dial strings such as *123 to activate voice mail or other
application provided by service provider. In this case * should be predefined inside dial plan
feature and the Dial Plan will be: { [x*]+ }.
Subscribe for MWI Default is No. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be sent
periodically.
Send Anonymous
If this parameter is set to “Yes”, the “From” header along with Privacy and P_
Asserted_Identity headers in outgoing INVITE message will be set to anonymous, blocking
Caller ID.
Anonymous
Call Rejection
Default is No. If set to Yes, incoming calls with anonymous Caller ID will be rejected with 486
Busy message.
Special Feature Default is Standard. Choose the selection to meet some special requirements from
Softswitch vendors. Example of vendors – Huawei, CBCOM, RNK.
Session Expiration
Grandstream implemented SIP Session Timer. The session timer extension enables SIP
sessions to be periodically “refreshed” via a SIP request (UPDATE, or re-INVITE. When the
session interval expires, if there is no refresh via a UPDATE or re-INVITE message, the
session will be terminated.
Session Expiration is the time (in seconds) at which the session is considered timed out, if no
successful session refresh transaction occurs beforehand. The default value is 180 seconds.
Min-SE The minimum session expiration (in seconds). The default value is 90 seconds.
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