Grandstream Networks GXW4216 User Manual

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GXW42xx User Manual
Version 1.0.15.30
G723 Rate
Defines the encoding rate for G.723 vocoder. By default, 6.3kbps rate is chosen.
G726-32 Packing
Mode
Choose the packing mode for G726-32
iLBC Frame Size
Sets the iLBC frame size in 20ms or 30ms
iLBC Payload
type
Default value is 97. Defines payload type for iLBC. The valid range is between 96 and
127.
AAL2-G726-16
Payload type
Default value is100. Range is from 96 to 127.
AAL2-G726-24
Payload type
Default value is 99. Range is from 96 to 127.
AAL2-G726-32
Payload type
Default value is 104. Range is from 96 to 127.
AAL2-G726-40
Payload type
Default value is 103. Range is from 96 to 127.
Use First
Matching
Vocoder in
200OK SDP
Default is No. If set to “Yes”, device will include only the first match vocoder in its
200OK response, otherwise it will include all match vocoders in same order received
in INVITE.
SRTP Mode
Default is Disabled. Other options are Enabled but not forced, and Enabled and
forced.
It uses SDP Security Description to exchange key. Please refer
SDES: http://www.apps.ietf.org/rfc/rfc4568.html
SRTP: http://www.apps.ietf.org/rfc/rfc3711.html
Crypto Life Time
Default setting is Yes. Enable or disable the crypto life time when using SRTP. If users
set to disable this option, phone does not add the crypto life time to SRTP header.
Silence
Suppression
(VAD)
Default is No. VAD allows detecting the absence of audio and conserve bandwidth by
preventing the transmission of "silent packets" over the network.
Jitter Buffer Type
Select either Fixed or Adaptive based on network conditions.

Grandstream Networks GXW4216 Specifications

General

Brand	Grandstream Networks
Model	GXW4216
Category	Gateway
Language	English