ACU-5000 Operations Manual
Interoperability Now 5-7
5.6 Channel Configuration - PSTN
The PSTN channel type is used for two-wire audio interfaces, typically a connection to a POTS
telephone system. POTS is a long-used acronym that stands simply for Plain Old Telephone
System and the means of interfacing is to simply plug one end of a standard phone cord into one
of the three ACU-5000 rear panel PSTN port, and the other into a wall outlet. Only channels 1
through 3 can be configured to the PSTN channel type.
As can be seen on the PSTN channel type configuration page, there are a number of configuration
options particular to this channel type. The context-sensitive help information provides further
information and guides proper configuration (see on the following manual page the help
information related to the Call Termination Settings).
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