FIRMWARE VERSION 1.0.0.5 HT802 USER MANUAL Page 36 of 46
Default is No. If selecting “Yes” the phone will use session timer when it receives
inbound calls with session timer request.
Default is No. If selecting “Yes” the phone will use session timer even if the remote
party does not support this feature. Selecting “No” will allow the phone to enable
session timer only when the remote party support this feature. To turn off Session
Timer, select “No” for Caller Request Timer, Callee Request Timer, and Force Timer.
Default is Omit. As a Caller, select UAC to use the phone as the refresher, or UAS to
use the Callee or proxy server as the refresher.
Default is UAC. As a Callee, select UAC to use caller or proxy server as the refresher,
or UAS to use the phone as the refresher.
Session Timer can be refreshed using INVITE method or UPDATE method. Select
“Yes” to use INVITE method to refresh the session timer. Default is No,
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.
Default is No, If set to Yes, Enables the use of PRACK (Provisional Acknowledgment)
method.
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
(in listed order)
The HT802 supports up to 5 different Vocoder types including G.711 A-/U-law, G.726-
32, G.723.1, G.729A/B/E, iLBC. 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 6”.
Vocoder types can also be changed per call basis by using a star code. Please see the
“Call features” section.
Default is 2. Defines the number of voice frames sent in each packet.
Default is 6.3kbps. Defines the encoding rate for G.723.1 vocoder.
Default is 20ms. 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 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)
Re-Invite after Fax Tone
Detection Mode
Default is Enabled. It makes the unit send out the re-INVITE for T.38 or Fax Pass
Through if a fax tone is detected.
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