Configuring The Fxo Channels; Table 9: Fxo Lines Configuration - Grandstream Networks GXW410x User Manual

C FXO C
ONFIGURING THE
Configuring the FXO channels on the GXW410x gateway is an easy process. Follow the GUI interfaces.
The Device Status page terms are defined in Table 9: FXO Lines Configuration Definitions. An
example of the Channel Dialing Configuration is shown in Figure 6. Please note the default is always
configured. The user has the option to change the default settings as described in the Table 9.
T 9: FXO L C
ABLE INES ONFIGURATION
Enable Current When set to Y, Current Disconnect is enabled. Certain PSTN COs require this to be enabled, in
Disconnect
order to realize disconnect signal from PSTN side. Default is Y.
If enabled use threshold: Default is 100ms. Range is 40ms to 800ms.
Certain PSTN service providers have a threshold time within which the line stabilizes after off-
hook. It is entirely dependent on provider, however if you experience PSTN line detection
issues, please modify this setting appropriately in 100ms increments.
Enable Tone
Default is No. If PSTN provider uses call progress tones then it should be set to Yes in order to
Disconnect realize disconnect tone. Please configure accurate Call Progress Tones on Channels webpage
based on PSTN provider (or traditional PBX) settings.
Enable Polarity
Default is No. This should be set to Yes only if the FXO lines are subscribed to PR service from
Reversal
PSTN Service provider. It is merely a PR detect feature.
***Note: If there is no PR service from provider on the FXO line, and this setting is configured to
Yes, calls will not be successful.
Silence Timeout
Terminate call after long silence detected. Default is 60 seconds, max 65536.
AC Termination Selects the impedance of the analog line connected to the FXO port on the GXW410x. Here is
Impedance some basic information which may be helpful for initial configuration:
600 Ohm – North America;
270 Ohm + (750 Ohm || 150 nF) -- Most of Europe
220 Ohm + (820 Ohm || 120 nF) – Australia, New Zealand
220 Ohm + (820 Ohm || 115 nF) – Austria, Bulgaria, Germany, Slovakia, South Africa
370 Ohm + (620 Ohm || 310 nF) – UK., India
Syntax for Channel Specific Settings:
Default: ch1-8:X; {all channels 1 to 8 are set to use value X}
Additional Examples:
ch1,3-6:10;ch2,7-8:12 {channels 1,3,4,5 and 6 are set to use value 10 while channels 2,7 and 8
are set to use value 12.
Use Outband Default is Yes. When set to Yes, DTMF signals that are received from RTP stream will be
ignored, and DTMF signals sent to PSTN, will be generated using the following parameters 1-3.
DTMF Params
DTMF Digit Length Default value is 100ms. Please not that the value will be multiplied by 10ms
DTMF Digit Volume Default value is -11dB.
DTMF Dial Pause Default value is 100ms. Please note that the value will be multiplied by 10ms.
Wait for Dial-tone
Default is Yes. When set to Yes, the gateway will recognize dial-tone from the Central Office
(CO) before it completes a call. If you can't make an outbound call, set this is No. if this is set to
Yes make sure you have configured the dial tone settings correctly and that there is not any
major noise interference in the line.
Grandstream Networks, Inc.
HANNELS
D
EFINITIONS
GXW410x User Manual
Firmware 1.0.1.25
Page 19 of 33
Updated: 07/2008