Chapter 3. System Features
Trunk Access Groups
Trunks can be placed in trunk groups. When a trunk group is accessed, the System automatically
selects an open trunk from the group.
To access a trunk group:
1. Enter a trunk access code (default trunk group access codes
are 9 or 81-84).
2. Dial the phone number.
FF1-3: MCO Access
Trunks can only appear in one trunk group.
If Automatic Call Routing is enabled, the MCO access code (9 by default) automatically
accesses the Automatic Route Selection (ARS) features.
Virtual ports are not physical ports in the System. They are phantom or simulated ports used in the
System to support:
Virtual extension ringing
Virtual floating hold
Up to 96 virtual ports may be assigned per cabinet.
Virtual Port used for Virtual Extension
You can assign an actual extension number to a virtual port. You can then assign the extension number
as any actual extension (incoming call settings and types, Station Class of Service (COS), tenant
group, pickup group, etc.). You can also assign the virtual port to an FF key on one or more telephones
and set to ring. Any call directed to the virtual port extension number will ring the assigned
DBS 576 (USA), issued January 1999
Section 700 - Operation