Grandstream Networks HT502 User Manual page 27

Anonymous Call
Rejection
Special Feature
Session Expiration
Min-SE
Caller Request Timer
Callee Request Timer
Force Timer
UAC Specify Refresher
UAS Specify Refresher
Force INVITE
Send Re-INVITE After
Fax
Use First Matching
Vocoder in 200OK SDP
Preferred Vocoder
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
Grandstream Networks, Inc.
Default is No. If set to Yes, incoming calls with anonymous Caller ID will be rejected
with 486 Busy message.
Default is Standard. Choose the selection to meet some special requirements from
Softswitch vendors.
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.
The minimum session expiration (in seconds). The default value is 90 seconds.
If selecting "Yes" the phone will use session timer when it makes outbound calls if
remote party supports session timer.
If selecting "Yes" the phone will use session timer when it receives inbound calls with
session timer request.
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.
As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or
proxy server as the refresher.
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, 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", 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. The first Vocoder is entered by choosing the
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 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.
HT-502 User Manual
Firmware Version 1.0.4.2
The last Vocoder is entered by choosing the
Page 27 of 32
Last Updated: 06/2011