VTech VT 4121 Telephone User Manual


 
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TABLE OF CONTENTS
INTRODUCTION.................................................................................................. 1
Becoming familiar with your speakerphone ......................................................... 1
The display........................................................................................................... 2
The Features........................................................................................................ 2
Parts Check list .................................................................................................... 5
FCC REGULATIONS ........................................................................................... 6
IMPORTANT SAFETY INSTRUCTIONS ............................................................. 8
INSTALLATION ....................................................................................................10
Site Planning ......................................................................................................... 10
Installing the Speakerphone ................................................................................. 10
Desk/Tabletop Mounting ................................................................................. 1 0
Wall Mounting................................................................................................. 11
PROGRAMMING ................................................................................................. 13
General Programming Guidelines ....................................................................... 1 3
Extension Number ............................................................................................... 13
Tone/Pulse Dialing ............................................................................................... 1 3
Date and Time...................................................................................................... 1 4
CO/PBX Line Ringing .......................................................................................... 14
CO Line Ring Tone............................................................................................... 15
Delayed Ringing................................................................................................... 15
CO Trunk Connection........................................................................................... 15
Automatic Line Selection ..................................................................................... 16
Call Forward ......................................................................................................... 16
Auto Mute Enable/Disable ................................................................................... 1 7
Flash .................................................................................................................... 1 7
Speed Dial ........................................................................................................... 17
Storing a Telephone Number in Speed Dial ....................................................... 17
Storing a Caller ID Number ................................................................................ 18
Erasing the Contents of a Speed Dial Bin .......................................................... 18
Line In Use Detection .......................................................................................... 18
Reset default Values ............................................................................................ 18
BASIC OPERATION ............................................................................................ 20
Lamp (LED) Operation ......................................................................................... 20
Line-In-Use Indication .......................................................................................... 21
Adjusting the Handset Volume Level ................................................................... 21
Adjusting the Speaker Volume Level ................................................................... 21
Adjusting the Headset Volume Level ................................................................... 21
Adjusting the Ringer Volume Level ...................................................................... 21
AC Power Failure Indication ................................................................................. 21