MERLIN LEGEND Communications System Release 6.1
Feature Reference
555-661-110
Issue 1
August 1998
Features
Page 207Digital Data Calls
Pools If a videoconferencing system is programmed to have a single Pool
button, two calls to that pool result in a 1B data call. However, if two
separate pools are assigned to a videoconferencing system extension,
then a 2B data call can be established. If a system includes two or more
video systems sharing the same pools, incoming 2B data calls can be
misrouted.
Privacy Privacy is activated automatically for digital data calls.
Reminder Service Digital communications devices and videoconferencing systems cannot
receive reminder calls.
Remote Access Data calls cannot be made into lines programmed for remote access.
Ringing Options Personalized ringing has no effect on digital data calls.
Some terminal adapters follow programmed ringing options and should
be set to Immediate Ring.
Videoconferencing systems are not affected by ringing options.
Signal/Notify Signaling can be activated by video systems that have the ability to dial
strings and feature codes beginning with #.
A Notify signal can be received at a passive-bus MLX telephone, even
when a 2B data or voice call is active.
Speed Dial Personal and System Speed dial codes can be used on digital
communications equipment (DCE).
Speed Dial codes can be used only on digital video systems that have the
ability to dial feature codes or number strings that begin with
.
System Access/
Intercom Buttons
Data calls cannot be presented as voice calls, although digital equipment
can make calls using ICOM or SA Voice Announce buttons.
Tandem Switching In Release 6.0 and later systems (Hybrid/PBX mode only), digital data
calls between networked systems must travel over PRI tandem trunks or
T1-emulated tie data tandem trunks. 2B data is supported when two
B-channels or T1 channels are available. Digital data calls can take place
at 64- and 128-kbps data speeds over tandem PRI trunks that are routed
for data-only or voice/data operation. T1-emulated tie data tandem
facilities are UDP-routed for data only; 56- and 112-kbps data speeds are
supported on these facilities.
Transfer Data calls cannot be transferred.
2B data video calls require both B-channels at a video workstation. For
this reason, if a call is on hold for transfer at a passive-bus MLX telephone
when a 2B call arrives, the passive-bus MLX telephone cannot retrieve
the held call until the 2B video call is over.
Voice Announce to
Busy
Voice Announce to Busy should be disabled at digital data workstations.
At a passive-bus MLX telephone, Voice Announce to Busy requires one
of the B-channels needed for a 2B video call and should be used only
when the video system is not active on, or receiving, a call.
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