Grandstream Networks HT502 User Manual page 47

Add Auth Header On
Initial REGISTER
Use First Matching
Vocoder in 200OK SDP
Preferred Vocoder
Voice Frames per TX
G723 Rate
iLBC Frame Size
iLBC Payload type
AAL2-G726-16 Payload
type
AAL2-G726 - 24
Payload type
AAL2-G726 - 32
Payload type
AAL2-G726 - 40
Payload type
G729E payload type
VAD
Symmetric RTP
Fax Mode
Fax Tone Detection
Mode
Jitter Buffer Type
Jitter Buffer Length
FIRMWARE VERSION 1.0.12.4
If set to Yes, device will include authorization header in the Register request.
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.
The HT502 supports up to 5 different Vocoder types including G.711 A-/U-law, G.726
(Supports bit rates 16, 24, 32 and 40), G.723.1, G.729A/B/E, iLBC and AAL2. The user
can configure Vocoders in a preference list that will be included with the same
preference order in SDP message.
appropriate option in "Choice 1".
appropriate option in "Choice 8".
Vocoder types can also be changed per call basis by using a star code. Please see the
"Call features" section.
Default is 2, from 1 -4 for G711/G726/G729
Default is 6.3kbps. Defines the encoding rate for G.723 vocoder.
Sets the iLBC frame size in 20ms or 30ms
Defines payload type for iLBC. Default value is 97. The valid range is between 96 and
127.
Default value is 100. Range is from 96 to 127.
Default value is 99. Range is from 96 to 127.
Default value is 104. Range is from 96 to 127.
Default value is 103. Range is from 96 to 127.
Default value is 102. Range is from 96 to 127.
Default is No. VAD allows detecting the absence of audio and conserve bandwidth by
preventing the transmission of "silent packets" over the network.
Default is No. When set to Yes the device will change the destination to send RTP
packets to the source IP address and port of the inbound RTP packet last received by
the device.
T.38 (Auto Detect) FoIP by default, or Pass-Through (must use codec PCMU/PCMA)
Default is Callee. This decides whether Caller, Callee or both sends out the re-INVITE
for T.38 or Fax Pass Through.
Select either Fixed or Adaptive based on network conditions.
Select Low, Medium or High based on network conditions.
•
High (initial 200ms, min 40ms, max 600ms) Note: not all vocoders can meet
the high requirement
HT502 USER MANUAL
The first Vocoder is entered by choosing the
The last Vocoder is entered by choosing the
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