Nortel Meridian Companion Installation And Maintenance Manual page 166

167 Appendix D: Programming the host switch
COMPANION 200 Installation and Maintenance Guide
are wired to the host switch. Your host switch may use another name
for this feature.
Note: Verify if and how your host switch supports MADN SCA.
The Single Call Arrangement of the MADN feature can be used as
a method of twinning a portable and a desk telephone. The portable
and the desk telephone are assigned the same directory number
when MADN SCA is used. An incoming call rings on both
telephones and can be answered on either. Only one call can be
active on all lines assigned to the host switch directory number. For
example, when a call is active on the portable, a second call cannot
be made from the twinned desk telephone.
Telephones that are twinned by MADN SCA on the COMPANION
200 system are supported by separate lines to the host switch. The
portable is supported by an access line connecting the Controller to
the host switch. The desk telephone is wired directly to the host
switch by another line. Although there are physically two separate
lines, the MADN feature allows the host switch to assign a single
directory number to both lines.
• The MADN SCA feature must be available on the host switch.
The feature must be able to support a standard analog telephone
for the external line to the Controller.
• The desk telephone can be a featured digital telephone or an
analog telephone.
• The portable and the desk telephone can be provided with
different sets of host switch features. The portable is limited to
the host switch features available to a standard analog telephone.
• A call in progress on a portable can be easily continued without
interruption on the desk telephone to which it is twinned simply
by lifting the receiver. The call on the portable can then be
terminated.
• A call in progress on the desk telephone can be continued without
interruption on the portable to which it is twinned simply by
establishing a connection. The call on the desk telephone can then
be terminated by placing the receiver in its cradle.
• Privacy of telephone conversations may not be ensured when
MADN SCA is used. This depends on how the host switch
handles MADN SCA. For example, if you are away from your
desk while talking on your portable, MADN can be programmed
to allow a person to listen to your conversation by picking up the
receiver on your desk telephone.
P0725810 Issue 3.0