Nortel Networks NN43001-106 - Manual (Page 99)

Feature description 99
Direct Inward Dialing Call Offering
The Central Office (CO) operator will be able to offer a Direct Inward Dialing
(DID) call to the attendant. When a DID call terminates on a busy station,
and the End of Selection Busy (EOSB) signal has been sent to the CO by
the analog (500/2500 type) telephone, the CO can then send an Operator
Pulse Signal (OPRS) back to the analog (500/2500 type) telephone. This
OPRS causes the analog (500/2500 type) telephone to forward the call
on to the attendant.
Disable Out-of-Service Alarm State
This enhancement allows the system to disable the Out-of-Service (OOS)
alarm state for an error, leaving the No New Call alarm state as the most
severe state. This is done by setting the OOS threshold time for an error
to zero.
Fault Signal
On an incoming call, if a Fault (FALT) Signal is received by the circuit
switched network while in an IDLE state, the circuit switched network will
respond with a Fault Signal until the CO returns to the IDLE state. On an
outgoing call, the circuit switched network will enter the FALT state if a
Release Control (RCTL) signal is not received within 30 seconds.
Incoming Seizure
This enhancement, applied on a group basis, allows the Central Office to
initiate a call from a lockout or far-end fault state.
Outpulsing Delay
This enhancement provides a delay before outpulsing on 2 Mbps DTI trunks.
Release Control
The circuit switched network will now be able to send and receive the
Release Control (RCTL) signal, which is sent by the called party on both
incoming and outgoing calls to indicate disconnection is complete. The
RCTL signal is sent by either the CO or circuit switched network in response
to a Release Clear Forward signal.
Signal Recognition
This enhancement gives the system more flexibility in handling receive
signals. The system can recognize a signal based on the ABCD signaling
bits. Any non-significant signaling bits of a receive signal can be flagged
as do-not-care. The system can then ignore these do-not-care bits before
trying to determine which signal it has received.
Nortel Communication Server 1000
Features and Services - Book 1 of 6 (A to B)
NN43001-106 01.04 Standard
Release 5.0 27 July 2007
Copyright © 2007, Nortel Networks
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