Administrator's Guide

Trunk Flash
Issue 5 October 2002 1901555-233-506
■ Tenant Partitioning
Station control of Trunk-to-Trunk Transfer is prohibited between trunks in
different tenant partitions if those partitions are restricted.
Trunk Flash
Trunk Flash allows a feature or function button on a multifunction telephone or
attendant console to be assigned as a Flash button. Pressing this button while
connected to a trunk (which must have been administered to allow trunk flash)
causes the System to send a flash signal out over the connected trunk.
Trunk Flash enables multifunction telephones to access central office customized
services that are provided by the far-end or CO located directly behind the
MultiVantage System. These central office customized services are electronic
features, such as conference and transfer, that are accessed by a sequence of flash
signal and dial signals from the MultiVantage system telephone on an active trunk
call. The Trunk Flash feature can help to reduce the number of trunk lines
connected to the MultiVantage switch by:
■ Performing trunk-to-trunk call transfers at the far-end or CO, which
eliminates the use of a second trunk line for the duration of the call and
frees the original trunk line for the duration of the call.
■ Performing a conference call with a second outside call party, which
eliminates the need for a second trunk line for the duration of the call.
NOTE:
Some analog DTMF telephone sets used in Italy and the United
Kingdom are equipped with a FLASH button that, when pressed,
generates a rotary digit 1. When an analog telephone which is
administered as a DTMF telephone (for example, as a 2500 or
71nn-type telephone) transmits a rotary digit 1, the system treats the
signal as a recall signal from the telephone set to the Avaya
MultiVantage.
When used by a CAS attendant connected to an RLT, the flash controls certain
CAS features at the branch. When used by a multifunction telephone or non-CAS
attendant connected to a CO, FX, or WATS trunk, the flash controls certain
features (such as add-on) at the connected CO.
Trunk Flash is not available on PCOL groups.
The system supports the Trunk Flash signal for incoming, outgoing, or 2-way call
directions on selected 2-wire analog (ground-start or loop-start) or digital (DS1)
trunks or Tie trunks on DS1.