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Instruction manual

ManualsBrandsMTS Systems ManualsComputer equipmentVIP 1216 PVR
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Extended Flexible Central Office Trunk Software Support Page 1455 of 3156
Features and Services
• Balance impedance adjustment. It is possible to download the balance
and termination impedance configured by a craftsperson for a
NT5K90AA (Danish PPM) or NT5K90BA (Danish non-PPM) unit. The
termination impedance is defaulted to value of 600 ohms. The balance
impedance may be configured in LD 14 using the BIMP prompt, as 600
ohms or 3COM (three-component).
• Flash hook signaling, for features requiring a flash hook operation. The
flash hook signal instructs a pack to send a flash hook signal to the PSTN.
The features that require a flash hook are Malicious Call Trace and
Centrex Switchhook Flash.
Error reporting and auditing is also provided. New problem reports are
defined so that the XFCOT card can notify the software when the dialing
speeds or companding laws are not supported by the hardware. If these new
error reports are received from the XFCOT card, an error message is printed
on the TTY. A channel and card parameter download audit is performed
during initialization and when LD 30 is run as a midnight routine to ensure
that the software configuration is the same as the configuration stored in the
hardware. If a discrepancy is detected, the software information is stored in
the hardware, and an error message is printed on the TTY.
For PPM recording, two new type 5 messages have been defined to report
hardware problems. These are the TRK Event: Partial Metering Detection
Failure message, and the TRK Event: Fatal Metering Detection Failure
message. Also, a type 12 channel configuration message and a type 13
channel audit configuration message have been introduced. The type 12
message provides the hardware with certain card configuration information,
so that the card may be able to inform the software when certain
configurations are not supported on the pack, and perform message filtering
based on the software configuration. The type 13 message provides
configuration download messages during the midnight routine.