NEC UNIVERGE SV9100 Features And Specifications page 330

Easily step call to an idle Department Group member if the member called is busy.
A virtual extension can be programmed to receive multiple calls which can camp-on to the
extension – no analog port is required.
An extension user can Transfer a call to a Department Group Pilot number. If unanswered,
the call recalls (depending on programming) the transferring extension after the Transfer
Recall Time (Program 24-02-04).
Voice mail uses one Department Group for voice mail.
When Program 16-01-05 is set to (1) Automatic, all telephones in the Department group
Ring for ICM calls & DID calls Directed to the Department Group Pilot Number only.
The Overflow feature is supported only for DID calls pointed directly to the Pilot Number.
POTS lines and transferred DIDs ignore the Overflow settings.
When a Department Group is assigned as the VM Department Group in Program 45-01-01
it only works as priority mode no matter what Program 16-01-02 is set to for that
Department Group.
Program 16-01-05 (Extension Group All Ring Mode Operation) does not work to a
Secondary Department Group.
Department Queuing will not work to Secondary Group Extensions.
Default Settings
Disabled
330