Grandstream GXW42xx User Manual User Manual

Page 51

FIRMWARE 1.0.5.8

GXW42XX USER MANUAL

PAGE 49 OF 62

Call Settings

Early Dial

Default is No. Use only if proxy supports 484 response. This parameter controls whether the

phone will send an early INVITE each time a key is pressed when a user dials a number. If set

to “Yes”, an INVITE is sent using the dial-number collected thus far; Otherwise, no INVITE is

sent until the “(Re-)Dial” button is pressed or after about 5 seconds have elapsed if the user

forgets to press the “Re-Dial” button. The “Yes” option should be used ONLY if there is a SIP

proxy configured and the proxy server supports 484 Incomplete Address response. Otherwise,

the call will likely be rejected by the proxy (with a 404 Not Found error).

This feature is NOT designed to work with and should NOT be enabled for direct IP-to-IP

calling.

Dial Plan Prefix

Sets the prefix added to each dialed number.

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;

^ - exclude;

d. [3-5] - any digit of 3, 4, or 5;

e. [147] - any digit 1, 4, or 7;

<2=011> - replace digit 2 with 011 when dialing

g. < =1> - add a leading 1 to all numbers dialed, vice versa will remove a 1 from

the number dialed

h. | - or

•

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: