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FIRMWARE 1.0.0.49 GXW42XX USER MANUAL PAGE 47 OF 54
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: http://www.apps.ietf.org/rfc/rfc4568.html
SRTP: http://www.apps.ietf.org/rfc/rfc3711.html
SLIC Setting
Depends on standard phone type (and location)
Caller ID Scheme
Select the value according to the local Telco standard where the GXW42XX 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
Disconnect
Set to Yes if the traditional PBX you are using with GXW42XX uses this method for signaling
call termination. Default is No.
Loop Current
Disconnect
duration
Default is 200. In 100 - 1 0000 milliseconds range.
Hook Flash
timing
Time period when the cradle is pressed (Hook Flash) to simulate FLASH. To prevent
unwanted activation of the Flash/Hold and automatic phone ring-back, adjust this time value.
On Hook Timing
On-hook timing is the minimum time for an on-hook event to be validated.
Gain
Handset volume adjustment. RX is for receiving volume (direction FXSto analog phone),
TX is for transmission volume (Analog phone to FXS). Default values are 0dB
for both
parameters. Loudest volume: +6dB Lowest volume: -6dB.
Disable Line
Echo Canceller
(LEC)
Default is No. If set to “Yes”, device will not use LEC to remove echo from a voice
communication.
Ring Tones
Configure ring cadences according to preference.
TABLE 11: FXS PORTS SETTINGS
FXS Port
FXS Port Number
SIP User ID
User account information, provided by VoIP service provider (ITSP). Usually in the form of
digit similar to phone number or actually a phone number.
47


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