Grandstream Networks GXW40XX User Manual page 34
Analog ip gateway 4, 8 or 24 fxs ports
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Also See for GXW40XX:
- User manual (59 pages) ,
- Provisioning manual (5 pages) ,
- Quick installation manual (11 pages)
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iLBC Payload type
Default value is 97. Defines payload type for iLBC. The valid range is between 96 and
127.
AAL2-G726-16
Default value is 100. Range is from 96 to 127.
Payload type
AAL2-G726-24
Default value is 99. Range is from 96 to 127.
Payload type
AAL2-G726-32
Default value is 104. Range is from 96 to 127.
Payload type
AAL2-G726-40
Default value is 103. Range is from 96 to 127.
Payload type
G729E payload type
Default value is 102. Range is from 96 to 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.
Symmetric RTP
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.
Fax Mode
T.38 (Auto Detect) FoIP by default, or Pass-Through (must use codec PCMU/PCMA)
Fax Tone Detection
Default is Callee. This decides whether Caller or Callee sends out the re-INVITE for
Mode
T.38 or Fax Pass Through.
Jitter Buffer Type
Select either Fixed or Adaptive based on network conditions.
Jitter Buffer Length
Select Low, Medium or High based on network conditions.
SRTP Mode
Default is Disabled. Other options are Enabled but not forced, and Enabled and
forced.
It uses SDP Security Description to exchange key. Please refer
SDES:
SRTP:
SLIC Setting
Depends on standard phone type (and location)
Caller ID Scheme
Select the value according to the local Telco standard where the GXW40XX is installed.
Please refer to the pull down list to select.
Polarity Reversal
Default is No. If set to "Yes", polarity will be reversed upon call establishment and
termination.
Loop Current
Set to Yes if the traditional PBX you are using with GXW40XX uses this method for
Disconnect
signaling call termination. Default is No.
Loop Current
Default is 200. In 100 - 1 0000 milliseconds range.
Disconnect duration
Grandstream Networks, Inc.
www.InternetVoipPhone.co.uk | sales@internetvoipphone.co.uk | 0800 088 4846
•
High (initial 200ms, min 40ms, max 600ms) Note: not all vocoders can meet the
high requirement
•
Medium (initial 100ms, min 20ms, max 200ms)
•
Low (initial 50ms, min 10ms, max 100ms)
http://www.apps.ietf.org/rfc/rfc4568.html
http://www.apps.ietf.org/rfc/rfc3711.html
GXW40XX User Manual
Firmware 1.0.4.2
Page 34 of 38
Last Updated: 06/2011
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