Nortel Networks M3310 - Manual (Page 142)

142 Digital Telephone IP Adapter Installation and Administration Guide
Using the digital telephone Standard 2.1
Modes of operation
Digital telephones at your Digital Telephone IP Adapter unit site can operate in
the following modes:
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host-controlled
!
online to host PBX
!
offline from host PBX
Host-controlled modes
Host-controlled mode means that the host PBX controls the following:
!
some display messages that display on your telephone
!
indicator updates such as the message waiting indicator
!
calls that you receive from or place to someone at the host PBX site
In host-controlled mode, a voice path is established to the host PBX and
signaling messages are passed between the host PBX and the Digital Telephone
IP Adapter unit.
Online mode
When in online mode, calls initiated on the host calling key are directed through
the host PBX. The display on your digital telephone set shows Online Mode.
Offline mode
When in offline mode, you cannot place or receive calls through the host PBX.
The display on all digital telephone sets show Offline Mode.