Well mPBX-36, User Manual

Page: 106 / 130

mPBX-36 User Manual
Page 106
6. Use mPBX
6.1 Make outbound call
To make an outbound call, we need to add trunk first. There are five types of
VoIP Trunk:
·Analog Trunk: FXO ports of mPBX, connected to a local PSTN.
·BRI Trunk: BRI ports of mPBX, connected to a local PSTN.
·VoIP Trunk: Connected to remote VOIP service server.
·Service Provider: Connected to service provider server.
What are FXO and FXS?
FXS (Foreign exchange Station) is an interface which drives an analog
telephone or FAX machine. FXS interfaces deliver power, provide ringing, and
use FXO signaling. FXS interfaces are what allow you to hook telephones and
other analog devices to your PBX
FXO (Foreign exchange Office) is an interface that connects to a phone line to
supply your PBX with access to a public telephone network. FXO interfaces use
FXS signaling. FXO interfaces allow you to connect your PBX to real analog
phone lines.