Network Intercom (Hot Type D And Hot Type I Enhancements) - Nortel Meridian Meridian 1 Feature Description And Administration

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Hot Type I
Hot Type D Enhancement
553-2901-301 Standard 9.00 January 2002

Network Intercom (Hot Type D and Hot Type I Enhancements)

There were two types of Hot Line keys (DN-based Hot Type D and Speed
Call List-based Hot Type L). Enhancement introduces another type of Hot
Line key, Hot Type I, while also providing improvements to the existing Hot
Type D. These two improvements function in both stand-alone and network
environments.
An option is available with Hot Type I to provide a No Answer Indication,
informing the called party that a Hot Line call was made during the called
party's absence. If a Hot Line call cannot be completed on the Hot Line key,
the calling party is informed via the set's display, and the call is completed
over the network as a normally dialed call that attempts to terminate on the
destination Prime DN.
Hot Type D provides the ability for Meridian digital sets to have two-way
intercom calls on specially designated keys (not on the DN keys) with other
Meridian digital sets connected to Meridian 1 PBXs across a Meridian
Customer Defined Network (MCDN) Integrated Services Digital Network
(ISDN). A Hot Type D call can terminate in three different modes: Voice,
Ringing, and Non-ringing. With the Voice mode, speech path is
automatically connected after a short ring. With Ringing and Non-ringing
modes, the call must be manually answered by the called party. The
difference between the two modes is that for Non-ringing no audible tone is
given, but the Hot Line key flashes to indicate the call.
Hot Type D allows more than one set to have the same target DN defined for
the Hot Type D key. This enhancement includes Voice, Ringing, and
Non-ringing termination modes, as well as the capability to leave a No
Answer Indication in some situations (i.e., the Hot Line key winks). A call
terminating on an enhanced Hot Type D key operates the same as if it is
terminating on a Hot Type I key (if the originating DN is the same as the
target DN defined for the key). If it is not the same, but another Hot Line key
exists on the set that has a target DN that matches the originating DN, a No
Answer Indication is left on that key.