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Parameter Description Default
Configure PSTN Dial Pattern
(See
VoIP and PSTN Dial
Patterns, below.)
Used to configure how the VoIP
Subsystem handles PSTN dial strings.
Hot Line Dialing
If enabled, the VoIP Subsystem
automatically dials the hot/warm dial
string as soon as the telephone receiver
is picked up.
Disabled
Warm Line Dialing
If enabled, when the telephone receiver is
picked up, the VoIP Subsystem
automatically dials the hot/warm dial
string after a short wait (default is four
seconds).
Disabled
Hotwarm Dial String
Used in hot and warm dialing when one or
the other is enabled.
Auto-Add This Area Code ...
Sets the area code to add automatically.
Polarity Dialing
Sets the SLAC line polarity during dialing
(Forward or Reverse).
Forward
Number of Digits I Will Dial For Local
Calls
Specifies the default number of digits to
be dialed for local calls.
7
Polarity Dialing
Sets the SLAC line polarity during dialing
(Forward or Reverse)
Forward
Polarity Dial Tone
Sets the SLAC line polarity during dial
tone (Forward or Reverse)
Forward
Polarity Connect
Sets the SLAC line polarity during
connect (Forward or Reverse)
Forward
Polarity Answer
Sets the SLAC line polarity during answer
(Forward or Reverse)
Forward
Polarity Idle
Sets the SLAC line polarity during idle
(Forward or Reverse)
Forward
VoIP and PSTN Dial Patterns
The VoIP Dial Pattern and the PSTN Dial Pattern together determine how the VoIP Subsystem handles dial
strings when someone dials a number from an attached phone. For units without an FXO port, the PSTN
Dial Pattern is ignored. In a given location, there are generally only a few types of dialed numbers that
need to be defined:
• Dialing for local calls
• Dialing for domestic toll calls,
• Dialing for international toll calls.
In addition, there are specific short strings that are set aside for emergency dialing, and there might be
other special strings that invoke telephone features.
By default, the VoIP Subsystem is configured to handle number patterns in every country in the world. For
models with an FXO port, emergency calls are by default routed to the PSTN, and all other calls are
routed via VoIP. If no telephone line is connected to the Telco port, emergency calls are routed via VoIP.
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