Grandstream GXP2200 User Manual - Manual (Page 125)

Firmware Version 1.0.3.26 GXP2200 USER MANUAL Page 124 of 159
and G.729. If set to "Yes", when silence is detected, a small quantity of
VAD packets (instead of audio packets) will be sent during the period of
no talking. If set to "No", this feature is disabled. The default setting is
"No".
Voice Frames Per TX
Configures the number of voice frames transmitted per packet. When
configuring this, it should be noted that the "ptime" value for the SDP will
change with different configurations here. This value is related to the
codec used and the actual frames transmitted during the in payload call.
For end users, it is recommended to use the default setting, as incorrect
settings may influence the audio quality. The default setting is 2.
Jitter Buffer Type
Selects either Fixed or Adaptive based on network conditions. The
default setting is "Adaptive".
ACCOUNT/CALL SETTINGS
Start Video Automatically
If set to "Yes", the video will be started automatically when answering
SIP video call. The default setting is "Yes".
Remote Video Request
Configures the preference of video request handling during an audio
call. Users could select "prompt", "accept" automatically or "deny"
automatically. The default setting is "prompt".
Dial Plan Prefix Configures the prefix to be added to each dialed number.
Dial Plan
A dial plan establishes 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+ - 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) \+ - the + at the beginning of the number to be dialed,
e.g., +861234567890

Example 1: {[369]11 | 1617xxxxxxx}