Lucent Technologies MERLIN LEGEND Release 5.0 System Planning Manual page 71

MERLIN LEGEND Communications System Release 5.0
System Planning 555-650-112
2 Control Unit Configuration
Numbering the System
NOTE: NOTE: NOTE:
When using the 008 MLX or 408 GS/LS-MLX module for data or video, you
must use Version 28 of the module.
The system assigns two extensions, although only one logical ID is assigned to
each digital extension jack. For MLX telephones, one extension number is
automatically assigned to the MLX telephone physically connected to the digital
extension jack. The second extension number is reserved for an adjunct, such as
a modem, that can be connected to the MLX telephone through a Multi-Function
Module (MFM), or for an ISDN terminal adapter (such as the Ascend Pipeline 25
or 50) used to connect a data terminal. For information about renumbering jacks,
see ''System
The system automatically assigns both extension numbers whether or not the
extension includes an MFM or ISDN terminal adapter. Calls can be placed to both
extension numbers independently.
The MFM can operate as an interface for either a Supplemental Alert Adapter or a
tip/ring device. The Supplemental Alert Adapter (SAA) setting on the MFM is used
when the MFM connects an external alert such as a bell or horn. The tip/ring (T/R)
setting is used when the MFM connects a tip/ring device such as an answering
machine or modem.
NOTES:
1. The system capacity for extensions is decreased by two whenever an
MLX-20L telephone is used.
2. In Behind Switch mode, the system automatically assigns two prime lines
to each port on an MLX module—one for the MLX telephone and one for
the device connected to the MFM. If an MFM is not connected to an MLX
telephone or the MLX port is not used, the prime line for the MFM can be
removed. The prime line can then be assigned to another user.
When PRI, NI-1 BRI, or T1 Switched 56 lines/trunks are assigned to an MLX jack,
digital data/video stations may use two B-channels simultaneously (2B Data) to
place or receive high-speed data/video calls. Optionally, some video stations may
be set up in a Passive Bus configuration. In this configuration, one MLX jack
serves both the video system and a standard MLX telephone that is connected to
the video system rather than directly to the MERLIN LEGEND. For more
information on planning for video applications, see
Communications''.
In Release 5.0 and later, if you want Computer Telephony Integration (CTI)
capability, you must assign an MLX jack (port) as the CTI link. The CTI Link
communicates with the PassageWay Telephony Services for Netware product
implemented on a Netware 3.12 or 4.1 or later server to provide CTI services.
These CTI services enable a desktop computer running a certified PC application
to provide computer-based features to users. The CTI Link port must be selected
Renumbering'', later in this chapter.
Chapter 5, ''Data
Issue 1
June 1997
Page 2-21