Grandstream Networks GXP14, Руководство пользователя

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FIRMWARE VERSION 1.0.6.11 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 54 of 81
Symmetric RTP
Defines whether symmetric RTP is supported or not. The default setting is
"No".
Silence Suppression
Controls the silence suppression/VAD feature of the audio codec G.723 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.
G723 Rate Selects encoding rate for G723 codec. The default value is 5.3kbps.
G.726-32 Packing Mode Selects "ITU" or "IETF" for G726-32 packing mode.
iLBC Frame Size Selects iLBC packet frame size. The default value is 30ms.
iLBC Payload Type
Specifies iLBC Payload type. The default value is 97. The valid range is
between 96 and 127.
Jitter Buffer Type
Selects either Fixed or Adaptive based on network conditions. The default
setting is "Adaptive".
Jitter Buffer Length
Selects Low, Medium, or High based on network conditions. The default
setting is "Medium".
Account x -> Call Settings
Early Dial
Selects whether or not to enable early dial. If it's set to "Yes", the SIP proxy
must support 484 response. The default setting is "No".
Dial Plan Prefix Sets the prefix 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+ 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