NEC Univerge SV9100, Features And Specifications

Page: 1196 / 1402

1196
Tandem Trunking (Unsupervised Conference)
Description
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 anytime.
The number of simultaneous conference calls is limited by the number of conference circuits in the
system. The maximum number of conference calls cannot exceed the limits defined below:
The GCD-CP10 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.
Tandem Trunking methods include:
Method A - Tandem Trunking from Conference
An extension user can set up Tandem Trunking (Unsupervised Conference) by dialing a 2-digit
service code (
#
8) or a uniquely programmed Transfer key.
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.
Method D - Automatic Tandem Trunking Setup to Speed Dial Number
This method allows an extension user to easily set up an Unsupervised Conference with a call they
have placed 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.
Trunk Continue/Disconnect Codes Added
T