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PBX PARAMETERS AND PORT SETTINGS:
GENERAL GUIDELINES AND DEFINITIONS
Optimal performance of the VPS/PBX system relies on proper VPS programming. There are three categories of
hardware settings: RS-232C, Port Settings, and PBX Interface Parameters. Some of the parameters are set by
entering a number, while others use sequence codes.
RS-232C S
ETTINGS
• Baud Rate (300 - 19200): Specifies the bits per second (the speed
at which the data is transferred).
• Word Bit Length (7 - 8): Defines the number of bits in each byte
or character.
• Parity (N, O, E): Specifies the number of bits used for
error detection.
• Stop Bit Length (1 - 2): Specifies the number of bits used to signify
the end of the byte.
P
ORT
S
ETTINGS
There is no need to change these in a typical installation. Each port on the VPS should be matched to the type
of signaling the PBX expects. If you need to change these settings, refer to the PBX reference manual or
customer support office to get the correct values for these settings.
• Flash Time—300, 600, 900 milliseconds: The minimum amount of time that the PBX requires to
recognize a hookswitch flash. Choose the amount that is equal to or greater than the PBX’s setting.
• CPC Signal (Calling Party Control Signal)—NONE, 6.5, 150, 300, 450, 600 milliseconds: The
amount of time allowed for the short break in loop current that is used to indicate that the caller has hung
up; usually set to NONE, since most PBXs do not provide this signal to single line ports. If choosing a
setting other than NONE, use an amount equal to or less than the PBX or telephone company provided
CPC signal.
• Disconnect Time—1 - 8 seconds: The amount of time an SLT has to be on-hook for the PBX to
recognize a disconnect.
• Dial Mode—DTMF, Pulse 10pps, Pulse 10pps: The type of signaling the PBX single line port expects
to receive. (pps = pulses per second)
PBX I
NTERFACE
P
ARAMETERS
• Dialing Parameters
PBX Type: Specifies the type of PBX which is connected to the VPS.
Integration Mode: Specifies the method of integration to be used between the VPS and PBX. If
PBX type is set to Panasonic KX-T series, the inband signaling parameters are set automatically
and should not be altered. D-PITS integration is only available when a KX-TD series PBX is
connected.