Grandstream Networks HT502 User Manual

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HT502 User Manual
Send Re-INVITE After
Fax
Default is No, If set to “Yes”, device will send an INVITE with audio vocoders
upon completion of Fax to continue session in audio only.
Enable Silence
Detection for Fax
Disconnect
For fax machines that do not send a Disconnect when fax is done. This option
Enables/Disables the detection of silence in order to know the fax has finished.
The silence period is non-configurable and fixed to 7 seconds.
Enable 100rel
Enables the use of PRACK (Provisional Acknowledgment) method.
Add Auth Header On
Initial REGISTER
If set to Yes, device will include authorization header in the Register request.
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.
Preferred Vocoder
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. The first Vocoder
is entered by choosing the appropriate option in “Choice 1”. The last Vocoder
is entered by choosing the 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.
Voice Frames per TX
Default is 2, from 1 -4 for G711/G726/G729
G723 Rate
Default is 6.3kbps. Defines the encoding rate for G.723 vocoder.
iLBC Frame Size
Sets the iLBC frame size in 20ms or 30ms
iLBC Payload type
Defines payload type for iLBC. Default value is 97. The valid range is between
96 and 127.
AAL2-G726-16
Payload type
Default value is 100. Range is from 96 to 127.

Grandstream Networks HT502 Specifications

General

Brand	Grandstream Networks
Model	HT502
Category	Telephone Accessories
Language	English