Grandstream Networks HT– 502 User Manual page 26

Subscribe for MWI
Send Anonymous
Anonymous Call
Rejection
Special Feature
Preferred Vocoder
G723 Rate
iLBC Frame Size
iLBC Payload type
G726-16 Payload
type
G726 - 24 Payload
type
G726 - 32 Payload
type
G726 - 40 Payload
type
G729E payload type
VAD
Symmetric RTP
Fax Mode
Fax Tone Detection
Grandstream Networks, Inc.
d. [147] - any digit 1, 4, or 7;
e. <2=011> - replace digit 2 with 011 when dialing
• Example 1: {[369]11 | 1617xxxxxxx} –
Allow 311, 611, 911, and any 10 digit numbers of leading digits 1617
Example 2: {^1900x+ | <=1617>xxxxxxx} –
•
Block any number of leading digits 1900 and add prefix 1617 for any
dialed 7 digit numbers
• Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} –
Allow any length of number with leading digit 2 and 10 digit-numbers of
leading digit 1 and leading exchange number between 2 and 9; If leading
digit is 2, replace leading digit 2 with 011 before dialing
3. Default: Outgoing - {x+}
Default is No. When set to "Yes" a SUBSCRIBE for Message Waiting
Indication will be sent periodically.
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.
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.
The HT-502 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 and
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".
Defines the encoding rate for G.723 vocoder. By default, 6.3kbps rate is
chosen.
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 98. Range is from 96 to 127.
Default value is 99. Range is from 96 to 127.
Default value is 100. 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 or Callee sends out the re-
HT-502 User Manual
Firmware 1.0.0.39
Page 26 of 35
Last Updated: 03/2007