Tandem Trunking (Unsupervised Conference) - NEC Univerge SV8100 Features And Specifications Manual

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UNIVERGE SV8100

Tandem Trunking (Unsupervised Conference)

Tandem Trunking allows an extension user to join two outside callers in a Trunk-to-Trunk Conference. The

extension user can then drop out of the call, leaving the trunks in an Unsupervised Conference. The

extension user that established the conference is not part of the conversation. The conference continues

until either outside party hangs up. The extension user that set up the conference can end the tandem call

The number of simultaneous conference calls is limited by the number of conference circuits in the

system. Due to this fact, the maximum number of conference calls cannot exceed the limits defined

The CD-CP00-AU provides two blocks of 32 conference circuits, allowing each block to have any number

of conferences with any number of internal or external parties conferenced as long as the total number of

conference channels used does not exceed the block limit of 32.

Tandem Trunking could help an office manager, for example, put two outside sales people in touch. The

office manager could:

Answer a call from one salesperson

Place a call to the second salesperson

Set up the Trunk-to-Trunk Conference

Drop out of the call

The office manager could terminate the conference anytime.

There are four methods for Tandem Trunking:

Method A - Tandem Trunking from Conference

An extension user can set up Tandem Trunking (Unsupervised Conference) by dialing a

2-digit service code (

Method B - Tandem Trunking with Transfer Key

This method allows an extension user to easily set up an Unsupervised Conference with

a call they have placed on Hold. It uses a uniquely programmed Transfer key to set up a

tandem call.

Method C - Automatic Tandem Trunking on Hang Up

This method allows an extension user to easily set up an Unsupervised Conference

without having to place the conference call on Hold. A Class of Service option is

available, which allows or denies an extension user from automatically setting up a

Conference/Tandem Trunking call after hanging up the telephone.

SV8100 Features and Specifications Manual

8) or a uniquely programmed Transfer key.

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