Grandstream Networks GXV300X The FXS tab would only appear for GXV3006, Fxs Settings, Page 37 of

AC Termination Imped-	Selects the impedance of the analog line connected to the FXO port on GXV3005
ance	Here is 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
Silence Timeout
	Terminate call after long silence detected. Default is 60 seconds, max 65536.
Caller ID Scheme
	The GXV3005 supports 5 different types of schemes:
	1. Bellcore (US standard)
	2. ETSI_RING
	3. ETSI_TAS
	4. DTMF
	5. NTT (Japanese standard)
	Please check with your PSTN service provider (or traditional PBX specs) for which caller
	ID scheme it supports.
Call Progress Tones
	Using these settings, user can configure tone frequencies according to user preference. By
	default, the tones are set to North American frequencies.
	Frequencies should be configured with known values to avoid uncomfortable high pitch
	sounds. ON is the period of ringing (ON time in ms) while OFF is the period of silence. In
	order to set a continuous ring, OFF should be zero. Otherwise it will ring ON ms and a
	pause of OFF ms and then repeat the pattern.
	“Dial tone”
	“Ringback tone”
	“Busy”
	“Re-order tone”
	Please refer the document below to determine your local call progress tones:
	http://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdf
Tx to PSTN Audio
	Allows user to set a value in dB for transmission to PSTN Audio Gain. Default is 1.
Gain(dB)
Rx to PSTN Audio
	Allows user to set a value in dB for receive from PSTN Audio Gain. Default is 0.
Gain(dB)

FXS SETTINGS

The FXS tab would only appear for GXV3006.

TABLE 15: FXS CONFIGURATION PAGE DEFINITIONS

Onhook Threshold	The amount of time the hookflash is pressed that will cause the device to onhook.
	Default is 800ms.
Onhook Voltage
	The onhook voltage can be selected according to the line voltage depending on the analog
	phone used. The low power/high power will increase/decrease the output current. The de-
	fault selection is 48V.

Grandstream Networks, Inc.	GXV300x User Manual	Page 37 of 54
	Firmware 1.2.3.7	Updated: 12/2010