MERLIN LEGEND Communications System Release 6.1
Feature Reference
555-661-110
Issue 1
August 1998
Features
Page 203Digital Data Calls
second call continues to ring at the sending system. (See “Feature Interactions,”
later in this topic, for more information.)
In Release 6.0 and later systems (Hybrid/PBX mode only), when MERLIN
LEGEND and/or DEFINITY ECS or DEFINITY ProLogix Solutions systems are
connected in private networks, 2B digital data calls across these networks can
take place over PRI tandem trunks or T1-emulated tie data tandem trunks, at
speeds up to 128 kbps for PRI or 112 kbps for T1-emulated tie data. If any analog
tandem tie trunks are in the communications path, only analog data calls can take
place.
MLX modules of firmware vintage 29 are not compatible with 2B data. You must
program the feature on a jack whose module is of earlier or later vintage.
Applications
The high-speed data capabilities of the MERLIN LEGEND Communications
System can be used for a number of applications, including videoconferencing,
Internet access, and data transfer.
Depending upon its capabilities, a videoconferencing system may offer
application-sharing, video collaboration, and data-sharing on either one or two
data channels at a time (most video systems require two channels for 2B data). If
one channel is used, the maximum data speed is 64 kbps (PRI) or 56 kbps (T1
Switched 56); if two channels are used, the maximum data speed is 128 kbps or
112 kbps.
Telephone Differences
Queued Call Consoles
QCCs cannot be programmed for 2B data. If a DLC is programmed for 2B data,
the DLC cannot be changed to a QCC unless 2B data programming is first
removed from the DLC.
Feature Interactions 9
Account Code Entry Account Code Entry can be entered for calls made by digital data
workstations and by video systems that support the use of # for feature
codes. The account code must be entered before the telephone number.
Authorization Code Data calls can use authorization codes. If Account Code Entry is also
used, the authorization code must be entered after the account code.
Authorization codes can be used by video systems that support the use of
# for feature codes.
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