User Guide
Table Of Contents
- Revision history
- Contents
- Welcome
- Regulatory and safety information
- Using your Avaya 1120E IP Deskphone
- Getting started
- Before you begin
- Connecting the components
- Removing the stand cover
- Connecting the AC power adapter (optional)
- Connecting the handset
- Connecting the headset (optional)
- Selecting the headset tuning parameter
- Connecting the LAN ethernet cable
- Installing additional cables
- Wall-mounting the IP Deskphone (optional)
- Entering text
- Entering text using the IP Deskphone dialpad
- Enabling and disabling the # Ends Dialing feature
- Configuring the dialpad to alphanumeric dialing
- Entering text using the USB keyboard
- Accessing the Avaya 1120E IP Deskphone
- Configuring the Avaya 1120E IP Deskphone
- Making a call
- Receiving a call
- The Address Book
- Call Inbox
- Call Outbox
- Instant Messaging
- While on an active call
- Additional features
- Using the Friends feature
- Feature keys
- Feature key programming
- Feature key autoprogramming
- Using Call Forward
- Configuring Do Not Disturb
- Configuring a Presence state
- Configuring Privacy settings
- Multiple Appearance Directory Number
- Audio Codecs
- PC Client softphone interworking with the IP Deskphone
- Automatic remote software updates
- Multiuser
- Advanced features
- Visual indicators
- Multi-Level Precedence and Preemption
- Quick reference
- Third party terms
- Terms you should know
- Index

Multi-Level Precedence and Preemption
339
Multi-Level Precedence and
Preemption
Overview
The Multi-Level Precedence and Preemption (MLPP) service functionality
allows you to place calls at varying levels of precedence; that is, you can
specify the precedence level of each call you place.
Higher precedence calls preempt those lower in precedence when a user
has no free call appearances.
You can only initiate a call with a precedence level equal to or below the
authorized precedence level that is configured for you. Any call you make
automatically defaults to Routine, unless you choose a higher
precedence. During call processing, this precedence level is used to
assure preferential call completion of higher precedence calls within the
same MLPP service domain, even if that means preempting lower
precedence calls. Once you set the precedence level for a call, the
precedence level for that call cannot be changed.
The precedence levels are:
•Routine
•Priority
• Immediate
•Flash
• Flash-Override
WARNING
Emergency 911 calls are preempted when there are no
available call appearances and there is an incoming
above-Routine precedence call.