PassFinder AP2520 VoIP Router/Gateway Operation Manual
Version 1.10 / Mar. 2002
AddPac Technology Co., Ltd.
-
171
-
5.1.4.
Voice Ports
Voice port commands for AP2520 VoIP Gateway define the characteristics
associated with a particular voice-port signaling type. Voice ports for both the
AP2520 VoIP Gateway
provides support for three basic voice signaling formats:
z
FXO---Foreign Exchange Office interface. The FXO interface is an RJ-11
connector that allows a connection to be directed at the public switched
telephone network's (PSap's) central office (or to a standard PBX interface,
if the local telecommunications authority permits). This interface is of value
for off-premise extension Applications.
z
FXS---The Foreign Exchange Station interface. The FXS interface is an RJ-11
connector that allows connection for basic telephone equipment, keysets,
and PBXes; FXS connections supply ring, voltage, and dial tone.
z
E&M---The "Ear and Mouth"(or "RecEive and TransMit") interface. The E&M
interface is an RJ-48 connector that allows connection for PBX trunk lines
(tie lines). It is a signaling technique for 2-wire and 4-wire telephone and
trunk interfaces.
The AP2520 series currently provides only analog voice ports for its
implementation of Voice over IP. The type of signaling associated with these
analog voice ports depends on the interface module installed into the device.
The voice port syntax depends on the hardware platform is being configured.
On the AP2520 series, the voice-port syntax is
voice-port
slot-number/port-number.
