Page 2 - Introduction
3 2 The VT 40-2421 / 40-2420 is an advanced 4-line cordless telephone system that operates in the 2.4GHz frequency range. Your VT 40-2421 / 40-2420 is capable of supporting up to 12 Handsets. Four handsets (extensions) can be active at any given time. Possible scenarios to have four handsets active ...
Page 4 - Setup; Getting Star; The Base Unit Layout; FRONT
7 6 Setup Connection of Phone and Power Lines •VT 40-2421 setup 1 . Plug the AC power adapter into an electrical outlet, and the DC connector into the back of the base unit. 2 . There are three modular telephone connections on the base unit L1/L2, L3/L4 and an AUX dataport to allow direct connection...
Page 9 - Basic OperationsBasic Operations; Placing Calls
17 16 Basic OperationsBasic Operations Do Not Disturb (DND) If you do no want a particular handset to receive calls, activate the DND function by doing the following: • Press FUNCTION key followed by the 4(DND) key. • The handset will display DO NOT DISTURB! DO NOT DISTURB! DO NOT DISTURB! DO NOT DI...
Page 10 - Receiving Calls
19 18 Basic Operations Basic Operations Mute During an active call, press the MUTE key totemporarily disable the handset microphone. MUTE! MUTE! MUTE! MUTE! MUTE! Will be displayed. Pres the MUTE key again to resume normal two wayconversation. Hold • To place an active call on hold, press the HOLDke...
Page 11 - Basic Operations; Basic Operations
21 20 • Press the # key to confirm number • PROGRAMMING SUCCESSFUL! PROGRAMMING SUCCESSFUL! PROGRAMMING SUCCESSFUL! PROGRAMMING SUCCESSFUL! PROGRAMMING SUCCESSFUL! is displayed To Delete a Speed Memory Location • Access program mode • Press # to select SPEED MEMORY SPEED MEMORY SPEED MEMORY SPEED ME...
Page 12 - Ad; Caller ID
23 22 Ad vanced Operations Caller ID Reviewing Caller ID Memory • Press the CID key • The display will show a counter of calls storedCaller ID memory. * ALL CID ALL CID ALL CID ALL CID ALL CID : Represents the total number of Caller ID records stored * NEW CID NEW CID NEW CID NEW CID NEW CID : Repre...
Page 13 - Visual Message Waiting Indication
25 24 Ad vanced Operations The VT 40-2421 is compatible with optional voicemailservice provided by some local telephone companies.If you subscribe to this service, and you have new,unplayed messages in your voicemail, a VisualM e s s a g e W a i t i n g I n d i c a t o r ( V M W I ) s i g n a l i st...
Page 14 - Conference; Transfer
27 26 To Establish a 2 Handsets / 1 Outside LineConference: • Place an active call on hold, by pressing the HOLD key. • Place an intercom call to another handset by pressing the INTERCOM key, followed by thehandset number (01..12). • Once the other handset answers, press the FUNCTION key followed by...
Page 15 - Low Battery Warning/Spare Battery Charger; Additional Inf; Headset Operation / Out of Range Indication
29 28 Additional Inf ormation Low Battery Warning A warning indicator appears when the handset battery becomes weak. If yo are on a call when a battery low alert appears, you will hear a double beep every 10 seconds, indicating that you should replace the drained battery pack immediately. Low Batter...
Page 16 - In Case Of Difficulty; Maintenance
31 30 Additional Inf ormation In Case Of Difficulty If you have difficulty operating your phone, the suggestions below should solve the problem. If you still have difficulty after trying these suggestions, call Vtech Communications at 1-800-595-9511. In Canada, call VTECH Electronics at 1-800- 267-7...
Page 17 - Warranty
33 32 Additional Inf ormation Warranty WHAT DOES OUR WARRANTY COVER? • Any defect in material or workmanship. FOR HOW LONG AFTER THE ORIGINAL PURCHASE? • To the original purchaser only - ONE YEAR. WHAT WILL VTECH DO? • At our option, repair or replace your unit. HOW DO I SEND MY UNIT, IN OR OUT OF W...
Page 18 - Technical Specifications
35 34 Additional Inf ormation FREQUENCY CONTROL Crystal controlled PLL synthesizer TRANSMIT FREQUENCY 2402.3040 - 2481.1520 MHz RECEIVE FREQUENCY 2402.3040 - 2481.1520 MHz CHANNELS 73 Channels NOMINAL EFFECTIVE RANGE Maximum power allowed by FCC and IC. Actual operating range may vary according to e...
Page 19 - FCC and IC Regulations
37 36 FCC and IC Regulations Additional Inf ormation FCC Part 68 The FCC requires that you connect your cordless telephone to the nationwide telephone network through a modular telephone jack (USOC RJ11C, RJ11W or RJ14). Your telephone company may discontinue your service if your equipment causes ha...