Disconnect supervision, Osp
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Installation and configuration

213

Disconnect supervision

The Lineside T1 card supports far-end disconnect supervision by opening
the tip side toward the terminal equipment upon the system’s detecting a
disconnect signal from the far-end on an established call. The Supervised
Analog Line feature (SAL) must be configured in LD 10 for each Lineside
T1 port. At the prompt FTR, respond:

OSP

and against FTR respond:

ISP

The Lineside T1 card treats OSP and ISP for both originating and
terminating calls as hook flash disconnect supervision, also known
as cut-off disconnect. Originating calls are outgoing from the terminal
equipment. Terminating calls are incoming to the terminal equipment. The
Lineside T1 card does not support battery reversal answer and disconnect
supervision on originating calls.

After the software is configured, power up the card and verify the self
test results. The STATUS LED on the faceplate indicates whether or not
the Lineside T1 card has passed its self test, and is functional. When
the card is installed, this LED remains lit for two to five seconds as the
self-test runs. If the self-test completes successfully, the LED flashes
three times and remains lit. When the card is configured and enabled in
software, the LED goes out. The LED goes out if either the motherboard or
daughterboard is enabled by the software. If the LED flashes continuously
or remains weakly lit, replace the card.

The Lineside T1 card supports far-end disconnect supervision by opening
the tip side toward the terminal equipment upon the Meridian 1 system’s
detecting a disconnect signal from the far-end on an established call. The
Supervised Analog Line feature (SAL) must be configured in LD 10 for
each Lineside T1 port. At the prompt FTR, respond

OSP

and against FTR respond

ISP

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008

Disconnect supervision, Osp Page 213

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Disconnect supervision, Osp
Page 213