Conference; Coverage; Digital Data Calls; Direct-Line Console (Dlc) - Lucent Technologies MERLIN LEGEND Release 6.0 Network Reference Manual

MERLIN LEGEND Communications System Release 6.0
Network Reference 555-660-150
3 Feature Interactions

Conference

Conference
Calls to a non-local dial plan extension are treated as outside calls for the purpose
of conferencing. Each non-local conference participant who is added takes up one
of the two outside calls permitted in a conference. For example, if a user has
added two outside calls to a conference, it is not possible to add a non-local
extension.

Coverage

Calls arriving for extensions at one system cannot be covered by extensions or
calling groups on a non-local system. Non-local dial plan calls are treated as
outside calls by the system and by Selective Coverage features: Coverage Inside
and Coverage VMS Off.

Digital Data Calls

Digital data calls between networked systems must travel over PRI tandem trunks
or T1-emulated tie trunks programmed for data. 2B data is supported when two
B-channels or T1 channels are available. UDP routes for digital data calls over
tandem PRI trunks can specify voice and data or data only service. UDP routes
for pools of T1-emulated tie facilities must specify data only. On tandem PRI
facilities, 128-kbps 2B data speeds are supported. T1-emulated tie trunks
programmed for data support 112-kbps 2B data speeds.
If you are using fractional point-to-point T1 facilities as tandem tie trunks, you can
program some channels for data-only; remaining channels can be dedicated to
voice only.

Direct-Line Console (DLC)

To prevent toll fraud, private trunks should not be assigned as personal lines on a
DLC, nor should a DLC be given dial access to private trunk pools.

Direct Station Selector (DSS)

DSS buttons cannot be used to access or monitor non-local dial plan extensions.

Direct Voice Mail

Direct voice mail does not work for non-local dial plan extensions.
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Issue 1
February 1998
Page 3-7