Nortel BCM 3.7, Manual

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DPNSS 1 features 553
Programming Operations Guide
Some features are transparent to the user, but must be programmed to be activated. Others are
available for end-user programming at the telephone. Details about these features are given below.
Three party service
Three Party Service is a DPNSS 1 feature for Business Communications Manager that is similar to
the Business Communications Manager Conference feature.
The Three Party Service allows a user, usually an operator, to establish a three-party conference by
calling two other parties from one telephone. Once the connection is made, the controlling party
can hang up, leaving the other two connected. The controlling party can even put one party on
hold, and talk to the other party.
Note: Business Communications Manager does not support Hold over the DPNSS link itself. This
means that the conferenced party on the distance end of the network cannot place a Three Party
Service call on Hold.
This feature is basically designed to allow operators to assist in the connection of calls from one
main location.
Making a conference call
To initiate or disconnect from a conference call on a Business Communications Manager system
over DPNSS 1, use the procedure described in the
Business Communications Manager Feature
Programming Telephone Guide .
Note: Three Party Service is supported on 7000 digital phones, but in a receive-only fashion.
These telephone types cannot initiate Three Party Service. For more information about these
telephone types, see the
Nortel Networks Digital Phone 7000 User Card .
Using the diversion feature
Diversion is a DPNSS 1 feature for Business Communications Manager that allows users to
forward their calls to a third party on the DPNSS 1 network. This feature is similar to call forward
on Business Communications Manager, but takes advantage of the broader capabilities of DPNSS.
There are five variations of Diversion: Call Diversion Immediate, Call Diversion On Busy, Call
Diversion On No Reply, Bypass Call Diversion, and Follow-me Diversion. These variations are
described below:
• Diversion Immediate diverts all calls to an alternate telephone. This function is programmed
by the user at their telephone.
• Diversion On Busy diverts all calls to an alternate telephone when a telephone is busy. This
feature is programmed in the Unified Manager.