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Grandstream Networks, Inc. HT-70X User Manual Page 28 of 35
Firmware Version 1.0.0.18 Last Updated: 03/2012
Subscribe for MWI
Default is No. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be
sent periodically.
Send Anonymous
Default is No. If this parameter is set to “Yes”, the “From” header along with Privacy
and P_ Asserted_Identity headers in outgoing INVITE message will be set to
anonymous, blocking Caller ID.
Anonymous Call
Rejection
Default is No. If set to Yes, incoming calls with anonymous Caller ID will be rejected
with 486 Busy message.
Special Feature
Default is Standard. Choose the selection to meet some special requirements from
Softswitch vendors.
Session Expiration
Grandstream implemented SIP Session Timer. The session timer extension enables
SIP sessions to be periodically “refreshed” via a SIP request (UPDATE, or re-INVITE.
Once the session interval expires, if there is no refresh via a UPDATE or re-INVITE
message, the session will be terminated. Session Expiration is the time (in seconds) at
which the session is considered timed out, if no successful session refresh transaction
occurs beforehand. The default value is 180 seconds.
Min-SE
The minimum session expiration (in seconds). The default value is 90 seconds.
Caller Request Timer
Default is No. If selecting “Yes” the phone will use session timer when it makes
outbound calls if remote party supports session timer.
Callee Request Timer
Default is No. If selecting “Yes” the phone will use session timer when it receives
inbound calls with session timer request.
Force Timer
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.
UAC Specify Refresher
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.
UAS Specify 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.
Force INVITE
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,
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. Default is No,
Enable 100rel
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
The HT70X 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 8”.
Vocoder types can also be changed per call basis by using a star code. Please see the
“Call features” section.
G723 Rate
Default is 6.3kbps. Defines the encoding rate for G.723.1 vocoder.
iLBC Frame Size
Default is 20ms. 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.
VAD
Default is No. VAD allows detecting the absence of audio and conserve bandwidth by
preventing the transmission of "silent packets" over the network.