Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 138

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Caller ID
NOTE:
Lines/trunks used for incoming Caller ID service should not have any
equipment other than the 800 GS/LS-ID module port connected to them.
LS-ID Delay Option
Caller ID information is sent from the central office during the first silent interval of
ringing. Because it is possible to answer a call before this information arrives, you
can turn on the LS-ID Delay option, which suppresses ringing until the Caller ID
information arrives. This option can be programmed for each line. The factory
setting is Off.
On telephones with personal lines, users see the green LED flash next to the
personal line button when a call arrives on the line. The red LED lights and the
telephone rings after a 6-second delay or when Caller ID information arrives,
whichever occurs first. Other telephones do not receive the call until after the
6-second delay or Caller ID information arrives.
NOTE:
The caller may hear one or two extra bursts of ringback if LS-ID Delay is
programmed while the person receiving the call has not yet heard a ring.
When the option is programmed on a 2-way trunk, the system does not seize a
trunk from the pool for an outgoing call while that trunk is receiving an incoming
call.
The differences between LS-ID Delay and Delay Ring are that Delay Ring
provides a fixed delay for all calls that arrive on the button programmed for Delay
Ring. LS-ID Delay affects calls that are received on lines connected to an
800 GS/LS-ID module. LS-ID Delay causes a variable delay in ringing at every
extension throughout the system on incoming calls to 800 GS/LS-ID modules.
The call is delayed only until Caller ID information is received from the central
office (on loop-start lines).
Facilities
The interface to Caller ID is provided by the 800 GS/LS-ID line/trunk module. This
module supports loop-start lines and ground-start trunks but supports Caller ID
only on loop-start lines.
Lines/trunks used for incoming Caller ID service should not have any equipment
other than the 800 GS/LS-ID module port connected to them.
Display Operation
Caller ID information is displayed on MLX display telephones only.
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Issue 1
June 1997
Page 106