NEC UNIVERGE SV8100 Features & Specifications Manual page 992

Issue 5.0
Press Hold and dial 753 or the service code set for Unsupervised Conference/Tandem Trunking in
Program 11-12-57.
The line keys for the trunks blink green as long as the Unsupervised Conference continues.
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To end the Tandem Call:
1. Press either flashing line key.
The line keys light steadily (green). You can listen (i.e., monitor) to the call or rejoin the conversation, based on
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the setting in Program 20-13-10.
2. Press Speaker or hang up.
If Program 20-13-10 is set to 0, the Conference ends and the line keys go out.
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If Program 20-13-10 is set to 1, to manually disconnect the Conference, Forced Trunk Disconnect (i.e., Press the
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line key + 724 or the service code set of Forced Trunk Disconnect in Program 11-10-26) must be used by an
extension other than the originating extension.
Method B – Tandem Trunking with Transfer Key
To set up a Tandem Call:
1. Place or answer first trunk call.
2. Press Hold to place the first trunk call on hold.
3. Place a second trunk call.
4. Press Transfer.
This sets up an Unsupervised Conference with both outside parties.
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The line keys for the trunks light solid red.
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To disconnect the Conference, use Forced Trunk Disconnect (i.e., Press the line key + 724 or the service code set
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of Forced Trunk Disconnect in Program 11-10-26) must be used by an extension other than the originating
extension.
Single Line Telephone
To set up a Tandem Call:
1. Place or answer first trunk call.
2. Press hookflash and dial 826.
3. Place or answer second trunk call.
4. To set up the tandem call, press hookflash and dial 753.
5. Hang up.
This sets up a Conference between both outside parties.
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1 - 982 Tandem Trunking (Unsupervised Conference)
UNIVERGE SV8100