Specifications

MyPBX SOHO Administrator Guide
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9. Use MyPBX
Figure 9-1
9.1 Make outbound calls
To make an outbound call, we need to add a trunk first. There are 3 types of VoIP Trunk:
·VoIP Trunk: Connected to remote VoIP service server.
You should get an IP address with user name/ password from the provider.
·Service Provider: Connected to service provider server.
You will get only IP address for authorization.
·Analog Trunk: FXO ports of MyPBX, connected to a local PSTN.
·BRI Trunk: BRI ports of MyPBX, connected to ISDN provider
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.