Three Handset Cordless
Posted in Uncategorized on 03/16/2010 08:09 am by admin
Three Handset Cordless
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 PANASONIC KX TG4132M DECT 60 PLUS CORDLESS PHONE PLUS THREE KX TGA410M HANDSETS  US $84.99
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 THREE 3 Uniden DCX330 DCX 330 DECT 60 Cordless Handsets To DECT3380 NEW US $99.99
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All About Cordless Telephone
A cordless telephone (telefone sem fio) is an electronic telephone that comprises of a wireless handset and a base unit. Communication is carried out between the handset and the base using radio waves. The wireless handset can be operated only within a fixed range from its base unit. The range of operation is generally within 100 meters. The base unit needs electricity to power it. Batteries are used to power the cordless handset. Placing the cordless handset in the cradle in the base unit recharges these batteries. A period of 12 to 24 hours is required for recharging the batteries.
With features like cell handover, data transfer and international roaming (on a limited scale), the once clear-cut line between mobile telephones and cordless telephones (telefone sem fio) has now been blended by the modern cordless telephone standards.
Frequency bands have been assigned in each country for cordless telephones (telefone sem fio). Advertisements by manufacturers claiming that there is an improvement in audio range and quality with higher frequency are a common sight. But that is not the case. Actually, higher frequencies have been seen to exhibit worse propagation in ideal case. There is also a tendency for the path loss to increase with higher frequencies. Locally varying factors such as antenna quality, signal strength, the modulation method being used and interference are more influential than other factors.
With Landline telephones working on a bandwidth of about 3.6 kHz (a small fraction of the frequency that a human ear can interpret), the transfer of audio is carried out with an audio quality that is just enough for the parties to communicate each other. Because of this limitation in the design of the phone system itself, it is not possible to improve the audio quality beyond a particular limit in cordless telephones.
Most of the good-quality cordless telephones (telefone sem fio) try transferring the audio signal with lowest possible interference and greatest possible range. Even the best of the cordless telephones fail to match the audio quality that a high quality phone wired to a good telephone line provides.
Sidetone (echo of voice heard in the speaker of the receiver), disturbing constant background noise that is due to the cordless system, and inability to obtain a full frequency response that is available in a wired phone are few of the reasons for a not-so-good audio quality. Rare exceptions, obviously, always exist that sound unbelievably similar to a wired telephone. But even these are considered as `fluke` by most industry standards.
Higher frequency is now being used in other home products like the microwave oven, Baby monitor, Bluetooth, wireless LAN, etc. Thus, cordless telephones (telefone sem fio) using higher frequency may face interference from signals from these devices.
Eavesdropping is a constant security threat for analog telephones. Any one with a radio scanner and within range can pick up these signals and listen to conversations. Modern digital technology is thus being used to take care of this kind of unauthorized access.
DSS (Digital Spread Spectrum) makes use of frequency hopping, i.e. spreading up of audio signal over a wider range in a pseudorandom fashion. DSS signal sounds like noise bursts to a radio scanner or any other analog receiver. This signal makes sense only to that base unit which has the same pseudorandom number generator as the cordless handset. Each time the cordless handset is returned to its cradle, a new unique generator is chosen from thousands of options.
DSS generates a signal spread that leads to a kind of redundancy, which gives rise to increased signal-to-noise ratio. It also leads to increase in signal range and decreases interference susceptibility. It is easier to use this kind of wide-bandwidth security option with higher frequency.
This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author's name and all the URLs (links) mentioned in the article and biography must be kept.
About the Author
This article can also be accessed in portuguese language from the Article section of page www.polomercantil.com.br/telefone-sem-fio.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br
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VTech / Three handset cordless answering w/ CID / CS6429-3 $60.05 VTech - Three handset cordless answering w/ CID - CS6429-3 |
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AT&T EL52309 Three Handset Cordless Phone $64.99 1 3 50 EL52309 Three Handset Cordless Phone 2 x Additional Handsets Chargers AT&T AT&T Corp Call Transfer Call Waiting Conference Call Cordless DECT Desk Mountable Display Dial EL52309 EL52309 Three Handset Cordless Phone Expandable Handset Locator Hearing Aid Indicator Intercom Memory Multi-lingual Menu Mute On-hook Dialing Phone Book Redial Remote Access Standard Phone Volume Control Wall-mountable Wireless Network Friendly Yes www.att.com |
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Vtech LS6225-3 Expandable Three Handset Cordless phone $80.99 1 3 50 LS6225-3 Expandable Three Handset Cordless phone 3 x handsets Any Key Answer Call Transfer Call Waiting Clock and Calendar Conference Call Cordless DECT Energy Star Expandable Handset Locator Indicator Intercom LCD LS6225-3 LS6225-3 Expandable Three Handset Cordless phone Memory Multi-lingual Menu Page Phone Book Redial RoHS Standard Phone VTech Holdings, Ltd Volume Control Vtech Wireless Network Friendly Yes www.vtech.com |
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Vtech CS6229-3 Expandable Three Handset Cordless Phone $60.99 1 3 50 CS6229-3 Expandable Three Handset Cordless Phone 3 x Handsets Wall Mount Bracket Enhanced 6.0 GHz Digital Cordless Telephone offers Call Waiting/Caller ID that stores 50 calls, 14-minute digital answering machine, handset speakerphone and three-handset system that only requires one jack. Digital answering machine has an audible time/date stamp on recorded messages, a backlit message counter and remote message retrieval. Wi-Fi-friendly telephone won't interfere with wireless networks. Telephone features page/handset locator, any key answer, intercom/call transfer between handsets, 50 name/number phonebook, nine-number speed dial, backlit keypad and display, handset volume control, English/Spanish/French prompts, and selectable ring tones. Telephone is wall mountable. Energy Star qualified. Any Key Answer CS6229-3 CS6229-3 Expandable Three Handset Cordless Phone Call Transfer Call Waiting Clock Conference Call Cordless DECT Energy Star Expandable Handset Locator Hearing Aid Indicator Intercom LCD Memory Message Counter Page Phone Book Redial RoHS Standard Phone Tri-lingual Menu VTech Holdings, Ltd Volume Control Vtech Wall-mountable Wireless Network Friendly Yes www.vtech.com |
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Panasonic KX-TGA450B Cordless Handset $205.73 5.8 GHz 4-Line Expandable Cordless Handset is designed for use with Panasonic four-line, 5.8 GHZ multihandset telephone system with CID. Call Waiting Caller ID has a 50-number Caller ID Memory/Dialer. Other features include three-line LCD, lighted handset keypad, hearing aid compatibility, Frequency Hopping Digital Spread Spectrum, Navigator Key, voice scramble, ringer volume control, hold/soft key/mute, flash/redial buttons, talk volume control, speakerphone/speaker volume, intercom, join in/privacy/barge in, low-battery indicator, out-of-range indicator and up to three selectable ringtones. Handset has four lines and answering system that is compatible with base unit. Handset is mountable to a wall and includes a charging cradle. Manufacturer: Panasonic Manufacturer Part Number: KX-TGA450B Manufacturer Website Address: www.panasonic.com Brand Name: Panasonic Product Model: KX-TGA450B Product Name: 5.8 GHz 4-Line Expandable Cordless Handset Product Type: Handset Technical Information: Features: Caller ID - 50-number Technical Information: Compatible Devices: Panasonic Cordless Phone - KX-TG4500B Controls/Indicators: Buttons & Keys: Navigation Key Physical Characteristics: Color: Black Physical Characteristics: Form Factor: Wall Mountable |
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RCA 25055RE1 Cordless Phone Handset $52.99 - Digital 1 14.08 oz 25055RE1 25055RE1 Cordless Phone Handset 6.93" Height x 2.83" Width x 2.66" Depth 25055RE1 Cordless Phone Handset AC Adapter Belt Clip Handset is designed for use with the RCA DECT 6.0 Corded/Cordless Two-Line Phone System. Digital answering system includes memo recording and message play. Handset features Call Waiting/Caller ID with 99 name/number log, speakerphone, 99 name/number directory, "Do Not Disturb" settings with variable length, privacy setting with line lockout, redial with three-number memory, trilingual display, headset jack, and digital volume control. Handset is hearing aid compatible. Set up the handset on your desk or mount to wall. Call Screening Call Timer Call Transfer Call Waiting Caller ID Cordless DND (Do Not Disturb) Expandable - Up to 10 Handset Flash Button Handset Hearing Aid Hold Button Indicator Intercom Keypad Mailbox - 2 Message Message Counter Mute Button Page Pause Phone Book - 99 Name/Number Pulse/Tone RCA Redial - With 3 Number Memory Thomson, Inc Voice Mail Voice Prompt Volume Control Wall-mountable Wireless Network Friendly www.thomson.net |
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Panasonic KX-TGA670B Cordless Phone Handset $57.99 5.80 GHz Expansion 5.8 GHz FHSS GigaRange Cordless Handset is designed for use with Panasonic KX-TG6700B 2-line expandable phone system. Handset offers two lines, hearing aid compatibility, Caller ID, three-line LCD, lighted keypad, speakerphone, flash/redial buttons, low-battery indicator, ringer volume control, hold/soft key/mute, intercom, and navigator key. Caller ID offers a 50-number memory and dialer. Battery type is NiMH. Handset answering machine is compatible with the base unit (sold separately). Black Call Waiting Caller ID Caller Log - 50-Station Caller Log - 50-number memory Chain Dial Cordless Cordless Phone Flash Button Handset Handset Locator Hearing Aid Hold Button Indicator - Ringer/Message Alert, Low-battery Intercom KX-TGA670B KX-TGA670B Cordless Phone Handset Keypad - Lighted LCD - 3-Line Backlit Mute Button Navigation Key Panasonic Panasonic Cordless Phone - KX-TG6700B System Phone Book - 50-Station Redial Soft Key Speakerphone Volume Control www.panasonic.com |
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Clarity C4230HS Cordless Amplified Handset $56.01 Features: DCP and 50 decibels of intelligent amplification make calls louder, clearer and easier to understand Concave earpiece creates an acoustic chamber to provide crystal clear sound Four (4) tone settings provide a customized listening experience Bright visual ringer in handset flashes to signal incoming calls Contoured handset shape is comfortable and easy to hold High contrast white LED screen is bright and easy to read Generously spaced backlit buttons make dialing easy Hearing Aid Compatible The Clarity Professional C4230HS with DCP makes conversations in any room with a power outlet loud and clear. Up to three (3) handsets can be used with the Clarity C4230 or C4220. The C4230HS automatically registers with the master unit making setup easy. C4230HS C4230HS Cordless Amplified Handset Call Waiting Caller ID Clarity Handset www.clarityproducts.com |
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Vtech DS6321-3 Expandable Three Handset Cordless Phone $89.99 1 12 3 50 14 Minutes of recording time DS6321-3 Cordless Phone with Answering Machine 3 x Handsets Wall Mount Bracket Bluetooth Link Call Transfer Call Waiting Conference Call Cordless DECT DS6321-3 DS6321-3 Cordless Phone with Answering Machine Digital Answering System Energy Star Intercom LCD Memory Message Counter RoHS Standard Phone Tri-lingual Menu VTech Holdings, Ltd Vtech Wall-mountable Wireless Network Friendly Yes www.vtech.com |
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Panasonic / Additional Cordless Handset / TPA50B04 $89.84 Panasonic - Additional Cordless Handset - TPA50B04 |
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Brother / BCLD10 CORDLESS HANDSET / BCLD10 $95 Brother - BCLD10 CORDLESS HANDSET - BCLD10 |
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Att Attcl82301 Dect 6.0 Cordless Phone With Caller Id Three Handset $94.96 The AT and T CL82301 is the cordless phone comes equipped with Dect 6.0 digital technology. Redifining long range coverage and voice clarity. Moreover the cordless also features HD audio taking sound quality to the next level. The pushtotalk helps for instant and easy communication between handsets. This expandable system supports up to 12 handsets which can all share a single phone jack. The CL82301 has up to 14 minutes of digital recording time. Also 50number phonebook saves time and effort. New dect 6.0 technology. Interference Free Communication. Increased clarity / enhanced security. Wider range / network friendly. 1.9GHz cordless phone. Dedicated for cordless phones by the FCC. 30 Battery life increase over 5.8GHz. High definition sound technology. Caller ID / call Waiting. Expandable up to 12 handsets. 12 Minute digital answering system. Message counter. Time and day stamp. Handset message access. Wall mountable. Handset speakerphone. Backlit LCD display. Backlit keypad. 50 Station name / number caller ID memory. 50 StationpPhone directory / dialer. Conferencing. Selectable ringtones. Handset volume control. Handset to handset intercom. Call transfer. 10 station redial memory. |
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Panasonic 5.8 GHz 4-Line Expandable Cordless Handset $92.99 1 1 x Headset Jack 5.8 GHz 4-Line Expandable Cordless Handset 5.80 GHz 5.8 GHz 4-Line Expandable Cordless Handset is designed for use with Panasonic four-line, 5.8 GHZ multihandset telephone system with CID. Call Waiting Caller ID has a 50-number Caller ID Memory/Dialer. Other features include three-line LCD, lighted handset keypad, hearing aid compatibility, Frequency Hopping Digital Spread Spectrum, Navigator Key, voice scramble, ringer volume control, hold/soft key/mute, flash/redial buttons, talk volume control, speakerphone/speaker volume, intercom, join in/privacy/barge in, low-battery indicator, out-of-range indicator and up to three selectable ringtones. Handset has four lines and answering system that is compatible with base unit. Handset is mountable to a wall and includes a charging cradle. Black Call Transfer Call Waiting Caller ID - 50-number Caller Log - 30 Number Conference Call - 3-Way Cordless Cordless Phone Flash Button Handset Hold Button Indicator - Low-battery, Out-of-rang Intercom - 2-way KX-TGA450B Keypad - Lighted LCD - 3 Line Backlit Display Navigation Key Panasonic Panasonic Cordless Phone - KX-TG4500B Pause Phone Book - 50 Number Redial Volume Control - 3-Level Handset Wall-mountable www.panasonic.com |
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GE/RCA H5801 Cordless Handset $94.99 "GE / RCA ViSYS H5801 Brand New Includes Two Year Warranty, The General Electric / RCA H5801 is a 8-line DECT 6.0 technology accessory handset and 99 number caller ID history 50 name/number directory. With this system you can enjoy interference free communication and enhanced security features. Moreover the system features trilingual LCD displays in English, Spanish and French. The H5801 has a three-way call Conferencing, permits three parties to be linked together for conference calls. It also features intercom that allows convenient 2-way conversation between handsets or between extensions. H5801 Features: New DECT 6.0 Technology - Interference Free Communication - Increased Clarity / Enhanced Security - Wider Range / Network Friendly, 1.9GHz Extra Handset / Charger - Dedicated for Cordless Phones by the FCC - 30 Battery Life Increase Over 5.8GHz, Single Line or Multi-Line Use, Caller ID, Speakerphone w/ Volume Control, Backlit LCD Display & Keypad, Backlit Keypad, 40 Station Name / Number Caller ID Memory, Conferencing, Speed Dial, Interference Free, Speakerphone Volume Control, Selectable Ringtones, 5-Step Ringer Volume Control, Visual Ringer, Intercom, Call Transfer, One-Touch Redial, Hold, Mute, Line Status Indicator, Do Not Disturb, Call Timer, Headset Jack, Belt Clip - Included w/ Brand New Models, Battery Powered (Requires 2 AAA Batteries), Will Not Work Without Base: GE / RCA 25825" |
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Panasonic KX-TGA939T DECT 6.0 Cordless Handset $64.99 - With Compatible Base Unit 1 264 Hour 4.59 oz 6.10" Height x 1.89" Width x 1.30" Depth Handset is designed for use with Panasonic DECT 6.0 Two-Line Expandable Phone System (KX-TG9392T). Handset offers Caller ID, two phone lines, a 1.9GHz frequency, backlit keypad, three-line LCD, three-step talk volume, six-step speakerphone volume, headset jack, 10-number redial memory, intercom, three-way conference calls, and 100-name/number memory. Night mode allows you to program the handset to ring or remain silent for specified time period without affecting other handsets. Battery life lasts 12 hours of talking and six days in standby mode. Alarm Any Key Answer Call Transfer Call Waiting Caller ID Clock Conference Call - 3 Way Energy Star Flash Button Handset Indicator - Ringer LED Intercom KX-TGA939T KX-TGA939T DECT 6.0 Cordless Handset Memory - 50 Recieved and Dialled Menu Metallic Black Navigation Key Panasonic Phone Book - 100 Names and Numbers Pulse/Tone Redial - Last 5 Numbers Volume Control - Off, Low, Mid, High Yes www.panasonic.com |
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Panasonic Additional Cordless Handset. Each $82.51 Manufacturer: Panasonic. Each. Additional handset for the KX-TGP500B04 and KX-TGP550T04 Add up to 6 per unit Customers also search for: Discount Additional Cordless Handset, Buy Additional Cordless Handset, Wholesale Additional Cordless Handset, 037988481 |
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Vtech DECT6.0 Digital Three Handset Cordless Phone. Each $64.5 Manufacturer: Vtech. Each. Three handset system High contrast white backlight Choose from 4 preset profiles HD Audio—Taking sound quality to the next level Conference between an outside line and up to 4 Handsets Push-to-Talk for instant and easy communica |
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Panasonic KX-TGA450B 5.8 GHz 4-line Cordless Handset $194.36 This stylish Panasonic 5.8GHz four-line accessory cordless handset is hearing aid compatible and allows up to eight handsets to be added. This phone features a transfer call and conference call capability with a 50-number phonebook.Compatibility: For use with the KX-TG4500BUp to eight handsets can be added to the systemHearing-aid compatible FHSS technology Caller ID, call waiting caller ID30-number caller ID memory and dialer50-number phonebookTwo-way intercom/pageUp to three-way conferencingBacklit multi-function three-line LCDNavigator keyLighted keypad2.5mm headset jackTransferConferenceHold/redial/pause/mute/flashThree-level handset volume controlSelectable ringtonesAdjustable ringerBlackReplacement battery: HHR-P104KXTGA450B |
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Clarity C4230HS 5.8GHz Amplified Cordless Handset with DCP $144.99 "Clarity C4230HS Product # 74225.000 Brand New Includes One Year Warranty, The Clarity C4230HS 5.8GHz Cordless Amplified Handset uses DCP and 50 decibels of intelligent amplification to make conversations louder and clearer. The concave earpiece of the Clarity C4230HS creates an acoustic chamber to provide crystal clear sound. The C4230HS has a digital answering machine with variable-speed playback and remote access. The Clarity C4230HS features 4 tone settings that provide a customized listening experience. In addition, the Clarity C4230HS includes a bright visual ringer, high contrast LED screen, backlit buttons and also full-duplex speakerphone in handset. The Clarity C4230HS is hearing aid compatible and expandable up to three handsets. C4230HS Features: Designed for People w/ Moderate to Severe Hearing Loss, 5.8GHz Extra Handset / Charger, Caller ID / Call Waiting, Digital Clarity Power Technology -Increases Volume for Soft Sounds -Decreases Volume for Loud Sounds, Amplified Volume - Up To 50dB, Amplified Handset Increases Incoming Sound, Hearing Aid Compatible, Echo Cancellation, Advanced Electronics Minimize Feedback & Distortion, Duplex Speakerphone, High Contrast White LED Screen, LED Status Indicator, 40 Station Caller ID Memory w/Name and Number, Failsafe Power Operation, Interference Free, 4 Selectable Ringtones, Adjustable Ringer / Volume Control, Bright Visual Ringer, Page, Tone / Pulse Dialing, Vibrating Ringer, One-Touch Speed Dial, Redial, Mute, Flash, Line Status Indicator, Channel Operation, 3.5mm Neckloop Jack, 2.5mm Headset Jack, Belt Clip - Included w/ Brand New Models, Additional Batteries For This Model Are: Clarity C4230B Extra Handset Will Not Work Without: Clarity C4220 or C4230" |
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25055Re1 - Rca 25055Re1 Cordless Phone Handset - Wall-Mountable $52.93 handset Is Designed For Use With The Rca Dect 6.0 Corded/cordless Two-line Phone System. Digital Answering System Includes Memo Recording And Message Play. Handset Features Call Waiting/caller Id With 99 Name/number Log, Speakerphone, 99 Name/number Directory, inch do No Disturb inch Settings With Variable Length, Privacy Setting With Line Lockout, Redial With Three-number Memory, Trilingual Display, Headset Jack, And Digital Volume Control. Handset Is Hearing Aid Compatible. Set Up The Handset On Your Desk Or Mount To Wall. [L825055RE1] UPC: 845679000025 UNSPC: 43191606 1.1 LB |
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DECT 6.0 digital three handset answering $94.96 ATT 3 handset cordless system. DECT 6.0 technology. Pushtotalk for instant and easy communication between handsets. HD audio. taking sound quality to the next level. Caller ID announce. hear the name of the incoming call |
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Uniden / DECT 6.0 Cordless ,1 Handset / D1680 $38.5 Uniden - DECT 6.0 Cordless ,1 Handset - D1680 |
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AT&T 5.8GHz Cordless Phone Handset E5802B $23.28 AT&T 5.8GHz Cordless Phone Handset E5802B |
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Panasonic Additional Handset Cordless Phone KXTGA740B $48.83 Panasonic Additional Handset Cordless Phone KXTGA740B |
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RCA Dect 6.0 Cordless Headset/Handset RCA25111 $97.51 RCA Dect 6.0 Cordless Headset/Handset RCA25111 |
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HD Talking Cid Cordless Handset SICL65HS $76.35 HD Talking Cid Cordless Handset SICL65HS |
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Verizon Dect 6.0 Cordless Handset For V300AM S30852H1757R361 $75.28 Verizon Dect 6.0 Cordless Handset For V300AM S30852H1757R361 |
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Att 4line Cordless 6dect Handset Pairs To Sb67118 $80.99 AT&T SYNJ HANDSET ONLY CORDLESS FOR SYNJ SB67118 |
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Vtech CL82309 Digital Three Handset Answering System $66.99 1 3 50 CL82309 Digital Three Handset Answering System 2 x Additional Handsets 2 x Chargers Any Key Answer CL82309 CL82309 Digital Three Handset Answering System Call Screening Call Transfer Call Waiting Clock and Calendar Conference Call Cordless DECT Desk Mountable Display Dial Expandable Handset Locator Hearing Aid Indicator Intercom Mute On-hook Dialing Phone Book Redial Remote Access Standard Phone Tri-lingual Menu VTech Holdings, Ltd Voice Mail Voice Prompt Volume Control Vtech Wall-mountable Wireless Network Friendly Yes www.vtech.com |