User's Manual

Grandstream Networks, Inc. GXV3140H USER MANUAL Page 47 of 146
FIRMWARE VERSION 1.0.7.2 Updated : 11/2010
The maximum value is 64 frames.
Adjusting these values will also change the jitter buffer. The phone has an
algorithm for setting the jitter buffer and the jitter buffer rate is around
20-200ms.
For end-users, it is recommended to use the default setting, as incorrect
settings may influence the quality of audio.
G723 Rate This defines the encoding rate for G723 vocoder, and can be 6.3Kb/s or
5.3Kb/s. Please confirm with your service provider.
Jitter Buffer Type Users can select either Fixed or Adaptive based on network conditions. The
default is Adaptive.
Jitter Buffer Length User can select Low, Medium, or High based on network conditions. The
default is Medium.
Account/Call Settings
Dial Plan Prefix Sets the prefix added to each dialed number.
Dial Plan 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+ - 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
• 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.