FIRMWARE VERSION 1.0.9.1 GXW40XX USER MANUAL Page 25 of 60
INTER-PORT CALLING
In some cases a user may want to make phone calls between the phones connected to multiple ports of
the same gateway when it is used as a stand alone unit, without the use of a SIP server. This feature will
also be applicable when the gateway is used with Hunting Groups and is registered to SIP server only
with one master number. In such cases users still will be able to make inter-port calls by using the IVR
feature.
For example on the GX4004 and GXW4008 the user connected to port 1 can reach the user connected to
port 3 by dialing *** and 73. Digit 7 indicated using inter-port calling feature, digit 3 indicates the port
number which should be reached. At the same manner the user connected to port 4 can reach the user
connected to port 8 by dialing *** and 78.
On the GXW4024 inter-port calling is achieved by dialing *** and 7 plus two extra digits corresponding to
the port number. For example the user connected to port 1 can be reached by dialing *** and 701; the
user connected to port 24 can be reached by dialing *** 724.
PSTN PASS THROUGH/LIFE LINE
This feature is only applicable to GXW4004 and GXW4008 models. The RJ-11 line jack on the
GXW400X side connected to a legacy PSTN line, functions as a pass through jack when the GXW400X
loses power or becomes unregistered. In this case, analog phone connected to FXS port 1 will be directly
connected to RJ-11 jack marked as LINE. The pass through/life line mode enables the user to use the
analog phone for PSTN calls directly without using an access code.
SENDING AND RECEIVING FAX
GXW40XX supports fax in two modes: 1) T.38 (Fax over IP) and 2) Fax Pass through. T.38 is the
preferred method because it is more reliable and works well in most network conditions. If the service
provider supports T.38, please use this method by selecting T.38 as fax mode (default). If the service
provider does not support T.38, pass-through mode may be used. If you have problems with sending or
receiving Fax, toggle the Fax Tone Detection Mode setting.
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