Digital Cordless Telephone

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

Clarity 2.4GHz Digital Cordless Amplified Telephone White C4205 $126.47 Clarity 2.4GHz Digital Cordless Amplified Telephone White C4205

AT&T CL81201 1.9GHz Digital Dect 6.0 Dect 6.0 Digital Dual Handset Cordless Telephone Silver/Gray $54.07 AT&T CL81201 1.9GHz Digital Dect 6.0 Dect 6.0 Digital Dual Handset Cordless Telephone Silver/Gray

Panasonic KX-TG4500B Corded/Cordless Telephone $399.99 1 1 Year Limited 100 4 5.80 GHz Four-line, 5.8 GHZ multihandset telephone system with CID is expandable up to eight handsets. Features all digital voicemail with automated attendant, up to eight individual mailboxes with separate greeting messages. Up to 100 minutes recording time. Telephone system offers call transfer, message transfer, time/date stamp. Remote access with voice prompts, 50 number caller ID memory dialer and 100 number phone directory. Extra handset for KX-TG4500 system includes charging cradle, is easy to connect to base unit, and features backlit, three-line, liquid crystal display (LCD). Black Call Transfer Call Waiting Caller Log Cordless EcoLogo Expandable KX-TG4500B KX-TG4500B Corded/Cordless Telephone Mailbox Panasonic Phone Book RF Standard Phone Voice Mail Yes www.panasonic.com

Northwestern Bell Digital Enhanced Cordless Telephone Large BTN Dect 6.0 B31070 $36.07 Northwestern Bell Digital Enhanced Cordless Telephone Large BTN Dect 6.0 B31070

GE corded/cordless Telephone With Caller ID/ Call Waiting and Digital Answering System Dect 6.0 30524EE2 $57.58 GE corded/cordless Telephone With Caller ID/ Call Waiting and Digital Answering System Dect 6.0 30524EE2

Panasonic 5.8GHz 4-line corded/cordless Telephone With Digital Answering System Caller ID KXTG4500B $403.44 Panasonic 5.8GHz 4-line corded/cordless Telephone With Digital Answering System Caller ID KXTG4500B

Vtech CS6429 Cordless Telephone $47.99 "Vtech CS6429, The Vtech CS6429 is the cordless phone comes equipped with DECT 6.0 digital technology which delivers excellent sound, enhanced security and range. Moreover it features interference free crystal converastion-wont interfere with wireless network and other electronic devices. The phone is expandable up to 5 handset using only one phone jack. The CS6429 can easily store 50 name and number. With just the touch of a button, hands-free conversations are made easy with the handset speakerphone. The phone has additional features like volume control, digital answering system no tapes or moving parts and tri-lingual menu setup. CS6429 Features: DECT 6.0 Technology (1.9GHz) Interference-Free & Wide Range 30 more Battery life, Caller ID / Call Waiting, Expandable Up To 5 Handsets, Digital Answering System, Eco-Friendly Phone, Wall Mountable/Mount Included, Handset Speakerphone, Backlit LCD Display, Backlit Keypad, 100 Station Name / Number Caller ID Memory, 50 Station Phone Directory / Dialer, Conferencing, Voicemail LED Indicator, Selectable Ringtones, Handset Volume Control, Handset to Handset Intercom, Call Transfer, Handset Locator / Paging, Last Number Redial, Any Key Answer, Trilingual Menu Support (English / Spanish / French)"

Panasonic / Cordless Telephone Battery / HHR-P402A $18.3 Panasonic - Cordless Telephone Battery - HHR-P402A

Panasonic Consumer KxTga651B Additional Digital Cordless Handset $53.95 ADDITIONAL DIGITAL CORDLESS HANDSET. Primary Information. Telephone Typenbsp;:nbsp;nbsp;Cordless handsetnbsp;. UNSPSC Code. UNSPSC Codenbsp;:nbsp;nbsp;43222600nbsp;

NEC 730095 Cordless DECT Telephone (Black) $386.99 "NEC 730095 Brand New Includes Two Year Warranty, The NEC 730095 cordless telephone for DSX uses advanced DECT wireless technology for improved clarity and range. The Cordless DECT Telephone offer the same extensive DSX feature integration as its sibling DSX Cordless Lite II, such as Call Forwarding, Call Coverage, Hotline, and Voice Mail. Additionally, the new Cordless DECT has 4 more fully programmable function keys with LEDs for even greater mobile operability in a compact handset. The 730095 has enhanced LCD display with full 24-character and 2 line display with a 3rd line for unique call status icons. All the display guidance provided to DSX keyset users is now available on their Cordless DECT. This new mobility solution comes complete with a base unit that connects directly to a digital station port. 730095 Features: 1.9GHz Cordless Phone, DECT Wireless Technology, 2-Line LCD Display - 3rd Line For Unique Call Status Icons, 4 Programmable Line Keys w/ LEDs, Ringer Volume Control, Call Forwarding, Call Coverage, Hotline & Voice Mail, 16 Hour Talk Time w/ 7 Day Standby, Nickel Metal Hydride Battery, Handset Charging Cradle"

Plantronics CA10-R Cordless Telephone Headset Amplifier $114.99 "Plantronics CA10 Reconditioned Includes 90 Day Warranty, Product # 45932-01 The Plantronics CA10 is the perfect mobile solution for contact centers, extending cordless mobility to the entire line of Plantronics professional headsets. The cordless amplifier gives contact center users, particularly supervisors and managers, room to roam, whether it's to coach a new hire or pick up the latest fax. CA10 Features: 900Mhz Cordless Amplifier, Connects to Most Single / Multi-Line Phones, For Use with Digital Office Telephone Systems for Total Mobility, Range of Up To 150 Feet, Dual Volume Control for Superior Sound, Up To 6 Hours Talk Time, Remote Call Answering with Optional Plantronics Handset Lifter Accessory, Color: Black Does Not Include Headset"

Vtech DS6521-2 / DS6522-32 Cordless Telephone $92.99 "Vtech DS6521-2 / DS6522-32 Brand New Includes One Year Warranty, The Vtech DS6521-2 / DS6522-32 cordless phone, with 1 additional handset and digital answering system, is equipped with DECT 6.0 technology. With this technology the user can enjoy the best in cordless phone sound quality, security, and range. This system won't interfere with wireless networks and, with the enhanced security features, you no longer have to worry about identity theft . The 50 station caller ID/call waiting will let you know who is calling even when you are already on the line. Additional features include 200-entry phonebook directory, last number redial, trilingual menu prompts, white backlit display and keypad.This phone can be mounted on the wall or placed on a flat surface. Vtech DS6521-2 / DS6522-32 Features: DECT 6.0 Technology (1.9GHz) Interference-Free & Wide Range 30 more Battery life, Unsurpassed Range Up To 500', Caller ID / Call Waiting, 14 Minute Digital Answering System, Time and Day Stamp, Remote Message Check, Voice Menu, Eco-Friendly Phone, Wall Mountable/Mount Included, Handset Speakerphone, Bluetooth&reg Connection for Mobile Phones, Backlit Keypad, Connect to Cell&trade, 50 Station Name / Number Caller ID Memory, 200 Station Phone Directory / Dialer, Conferencing, Voicemail Message Waiting Indicator, Adjustable Handset Volume Control, 3-Step Ringer Volume Control, Intercom, Last 10 Number Redial, Mute, Flash, Call Screen / Record From Handset, Trilingual Menu Support (English / Spanish / French)"

Northwestern Bell 2 Line Cordless Telephone w/Caller ID. Each $108.31 Manufacturer: Northwestern Bell. Each. Northwestern Bell 2 Line speakerphone with call waiting, caller ID and digital answering system- 5.8GHz frequency hopping digital spread spectrum multi-handset cordless telephone- 75 Channels frequency hopping- Digit

AT&T SL82118 DECT 6.0 Digital Cordless Telephone w/ Answering System $68.99 "AT&T SL82118, The AT&T SL82118 DECT 6.0 digital cordless telephone offers unsurpassed range, sound quality and security. Outside interference from wireless networks and home appliances will not be an issue. The SL82118 allows you to transfer calls from one cordless handset to another or between the base speaker phone and any other registered handset within the system. The base can support up to 12 separate handsets . A built-in digital answering machine system records messages on microchips for reliable performance and provides instant access to those messages. The SL82218 also has the ability to selectively save and delete messages. Other features includes caller ID, call waiting, handset speaker phone, selectable ring tones and wall mount. SL82118 Features: Voicemail Waiting Indicator, under $50, DECT 6.0 Technology (1.9GHz) Interference-Free & Wide Range 30 more Battery life, Caller ID / Call Waiting, Expandable Up To 12 Handsets, 14 Minute Digital Answering System, 2-Digit LED Message Counter, Time and Day Stamp, Call Screening / Intercept, Remote Access, Memo Recording, Voice Menu, Wall Mountable/Mount Included, Handset Speakerphone, Backlit LCD Display, Illuminated Keypad, Dial Display, 50 Station Name / Number Caller ID Memory, 50 Station Phone Directory / Dialer, Conferencing, New Call Indicator, Message Waiting Indicator, Missed Call Indicator, Handset Volume Control, Adjustable Ringer Volume Control, Intercom, Call Transfer, 5 Number Redial, 2.5mm Headset Jack, Trilingual Menu Support (English / Spanish / French), Additional Handsets For This Model Are: AT&T SL80108 Additional Batteries For This Model Are: BT8001"

HiTel HT1000 1.5' LCD Digital Cordless Telephone Set (Dark Blue) $26.8 - Brand: HiTel- Model: HT1000- Provide you with a sublime quality of communication- Features DECT and GAP standard- RF channel: 10- Frequency: 1.881~1.897GHz- Bandwidth: 1.728MHz- Speech coding: ADPCM/32Kbps- Modulation Mode: GFSK- Output power: 250mW (Max.)- Has a range of up to 300m outdoors and 50m indoors- Up to 10 hours talk time and 120 hours standby- Last 20 received calls and 10 numbers redial- 9 melodies and volume control available- Speed dial with 10 locations- Package includes:- 1 * Cordless Telephone- 1 * 230V AC Charger (EU Plug)- 1 * RJ11 Cable- 1 * Charging Station- 2 * GP950 Rechargeable AAA NI-MH Battery- 1 * English User Manual

HiTel HT1000 1.5' LCD Digital Cordless Telephone Set (Black + Silver) $26.8 - Brand: HiTel- Model: HT1000- Provide you with a sublime quality of communication- Features DECT and GAP standard- RF channel: 10- Frequency: 1.881~1.897GHz- Bandwidth: 1.728MHz- Speech coding: ADPCM/32Kbps- Modulation Mode: GFSK- Output power: 250mW (Max.)- Has a range of up to 300m outdoors and 50m indoors- Up to 10 hours talk time and 120 hours standby- Last 20 received calls and 10 numbers redial- 9 melodies and volume control available- Speed dial with 10 locations- Package includes:- 1 * Cordless Telephone- 1 * 230V AC Charger (EU Plug)- 1 * RJ11 Cable- 1 * Charging Station- 2 * GP950 Rechargeable AAA NI-MH Battery- 1 * English User Manual

Panasonic KX-TG2322B-R 2.4GHz Cordless Telephone w/ Digital Answering $139.99 "Panasonic KX-TG2322B 2.4GHz Cordless Phone, GigaRange Digital FHSS Technology, Single Line Operation, 15-Minute Digital Answering Machine Tone Remote Operation LCD Call Counter Voice Menu / Time Stamp, Handset Speakerphone, Voice Enhancer Technology, Voicemail Message Waiting Indicator, Big Button Illuminated Keypad, 7 Selectable Ring Tones (3 Tones / 4 Melodies), Redial / Flash, Page / Handset Locator, Tone / Pulse Dialing, Adjustable Ringer / Volume Control, Visual Ringer, Out of Range / Low Battery Indicator, Shoulder Rest Attachment, Headset Jack, Belt Clip, Wall Mountable, NiMH Rechargeable Battery"

Plantronics CT14 Headset Cordless Telephone $153.49 DECT 6.0 offers ideal combination of size mobility and handsfree convenience features an ultracompact remote dialing pad with rechargeable battery pack make or take calls up to 300 from the base unit with increased digital security remote has a onetouch voicemail access automatic channel selection any key answer multiunit capabilities intercom between two units 3way conferencing stores 70 names/numbers 30 caller ID memory with Save and Phonebook feature builtin headset stand online indicator light black.

Replacement Battery for Panasonic Cordless Telephone KX-TG4500 $17.99 Replacement Battery for Panasonic Cordless Telephone KX-TG4500

Geemarc / 40dB Amplified Cordless Telephone / AMPLI250 $79.19 Geemarc - 40dB Amplified Cordless Telephone - AMPLI250

Panasonic / SIP IP DECT CORDLESS TELEPHONE / TGP500B04 $166.14 Panasonic - SIP IP DECT CORDLESS TELEPHONE - TGP500B04

Clarity Amplified Cordless Telephone 50dB 59522000 $103.9 Clarity Amplified Cordless Telephone 50dB 59522000

Sonic Bomb 40dB Amplified Cordless Telephone GMAMPLI250 $75.95 Sonic Bomb 40dB Amplified Cordless Telephone GMAMPLI250

DECT 6.0 digital dual handset cordless $63.09 ATT DECT 6.0 digital dual handset cordless telephone. Pushtotalk for instant and easy communication between handsets. HD audio. taking sound quality to the next level. Handset speakerphone. Call transfer using intercom. C

Panasonic KX-T7633B-R Digital Proprietary Telephone $128.99 "Panasonic KX-T7633 (Black) The Panasonic KX-T7633 is a digital proprietary telephone with 24 buttons, and 3-line backlit LCD display for the Panasonic KXTDA phone systems. This fully duplex speakerphone ensures that the conversation will flow both ways without clipping. The 24-line keys can be programmed to the user's preference and can show other extensions on the Panasonic telephone system. KX-T7633 Features: Digital Corded Phone, Speakerphone, Caller ID, 3-Line Backlit LCD Display, Adjustable Screen Contrast, 24 Programmable Line Buttons, USB Port, 24 Programmable Line Buttons, Off-Hook Voice Announce, Up To 8-Way Conferencing, Speed Dial, Forwar/ Do Not Disturb (DND), 20 Ringtones / 10 Musical Ringers, Intercom / Paging Key, Auto Dial / Redial / Answer, Hold / Flash, Pause / Transfer, Navigator Key, Headset JackMulti-Language Menus, Off-Hook Voice Announce, 24 Flexible Outside (CO) Line Buttons, eXtra Device Port (XDP), Multi-Angle Tilt Body, Background Music (BGM), Wall Mountable, Key Term Definitions Hybrid Phone: A phone that is hybrid is a mix between key systems and PBX systems. Over the years the differences between these 2 types have dwindled and so the benefits of both have been combined the term hybrid signifies the grouping. Digital Phone: Digital phones break up audio signal into a binary code ( series of 1s and 0s) and transfer the code to another device, which then takes the code and reassembles the signal. Analog takes the human voice and translates it into electronics pulses. Since digital breaks up the signal is it able to correct errors that may have occurred during transmission, delivering clearer conversation. CTI (computer telephony integration): This is an optional set of applications that will allow you to integrate your telephone system with your computer. These applications include one-click dialing, video conferencing, incoming call routing and more. Extra Device Port (xDP): The xDP is a connection path for a second single-line analog device. This device can share an extension number (cordless phone) with the system phone or work independently (modem, fax, etc.) Digital Extra Device Port (DXDP): The DxDP is a connection path for a full-featured, multi-line digital device. With this port you can add a second digital phone to your system with any additional modules or wiring. Power Over Ethernet (PoE): /s"

Panasonic KX-T7633W Digital Proprietary Telephone $149.99 "Panasonic KX-T7633 (White), The Panasonic KX-T7633 is a digital proprietary telephone with 24 buttons, and 3-line backlit LCD display for the Panasonic KXTDA phone systems. This fully duplex speakerphone ensures that the conversation will flow both ways without clipping. The 24-line keys can be programmed to the user's preference and can show other extensions on the Panasonic telephone system. KX-T7633 Features: Digital Corded Phone, Speakerphone, Caller ID, 3-Line Backlit LCD Display, Adjustable Screen Contrast, 24 Programmable Line Buttons, USB Port, 24 Programmable Line Buttons, Off-Hook Voice Announce, Up To 8-Way Conferencing, Speed Dial, Forwar/ Do Not Disturb (DND), 20 Ringtones / 10 Musical Ringers, Intercom / Paging Key, Auto Dial / Redial / Answer, Hold / Flash, Pause / Transfer, Navigator Key, Headset JackMulti-Language Menus, Off-Hook Voice Announce, 24 Flexible Outside (CO) Line Buttons, eXtra Device Port (XDP), Multi-Angle Tilt Body, Background Music (BGM), Wall Mountable, Key Term Definitions Hybrid Phone: A phone that is hybrid is a mix between key systems and PBX systems. Over the years the differences between these 2 types have dwindled and so the benefits of both have been combined the term hybrid signifies the grouping. Digital Phone: Digital phones break up audio signal into a binary code ( series of 1s and 0s) and transfer the code to another device, which then takes the code and reassembles the signal. Analog takes the human voice and translates it into electronics pulses. Since digital breaks up the signal is it able to correct errors that may have occurred during transmission, delivering clearer conversation. CTI (computer telephony integration): This is an optional set of applications that will allow you to integrate your telephone system with your computer. These applications include one-click dialing, video conferencing, incoming call routing and more. Extra Device Port (xDP): The xDP is a connection path for a second single-line analog device. This device can share an extension number (cordless phone) with the system phone or work independently (modem, fax, etc.) Digital Extra Device Port (DXDP): The DxDP is a connection path for a full-featured, multi-line digital device. With this port you can add a second digital phone to your system with any additional modules or wiring. Power Over Ethernet (PoE): PoE technology allows power to be delivered to a remote device using the same cable lines used"

Panasonic KX-T7633W-R Digital Proprietary Telephone $127.99 "Panasonic KX-T7633 (White) The Panasonic KX-T7633 is a digital proprietary telephone with 24 buttons, and 3-line backlit LCD display for the Panasonic KXTDA phone systems. This fully duplex speakerphone ensures that the conversation will flow both ways without clipping. The 24-line keys can be programmed to the user's preference and can show other extensions on the Panasonic telephone system. KX-T7633 Features: Digital Corded Phone, Speakerphone, Caller ID, 3-Line Backlit LCD Display, Adjustable Screen Contrast, 24 Programmable Line Buttons, USB Port, 24 Programmable Line Buttons, Off-Hook Voice Announce, Up To 8-Way Conferencing, Speed Dial, Forwar/ Do Not Disturb (DND), 20 Ringtones / 10 Musical Ringers, Intercom / Paging Key, Auto Dial / Redial / Answer, Hold / Flash, Pause / Transfer, Navigator Key, Headset JackMulti-Language Menus, Off-Hook Voice Announce, 24 Flexible Outside (CO) Line Buttons, eXtra Device Port (XDP), Multi-Angle Tilt Body, Background Music (BGM), Wall Mountable, Key Term Definitions Hybrid Phone: A phone that is hybrid is a mix between key systems and PBX systems. Over the years the differences between these 2 types have dwindled and so the benefits of both have been combined the term hybrid signifies the grouping. Digital Phone: Digital phones break up audio signal into a binary code ( series of 1s and 0s) and transfer the code to another device, which then takes the code and reassembles the signal. Analog takes the human voice and translates it into electronics pulses. Since digital breaks up the signal is it able to correct errors that may have occurred during transmission, delivering clearer conversation. CTI (computer telephony integration): This is an optional set of applications that will allow you to integrate your telephone system with your computer. These applications include one-click dialing, video conferencing, incoming call routing and more. Extra Device Port (xDP): The xDP is a connection path for a second single-line analog device. This device can share an extension number (cordless phone) with the system phone or work independently (modem, fax, etc.) Digital Extra Device Port (DXDP): The DxDP is a connection path for a full-featured, multi-line digital device. With this port you can add a second digital phone to your system with any additional modules or wiring. Power Over Ethernet (PoE): /s"

Panasonic KX-T7625B-R Digital Proprietary Telephone $67.99 "Panasonic KX-T7625 (Black) The Panasonic KX-T7625 is a digital proprietary telephone with 24 buttons and speakerphone. This device has easy to use navigator keys and comes with 24 programmable CO keys with dual color LEDs. The KX-T7625 also has conference facility of up to 8-party and XDP/DXDP jack for adding another KX-T7600 DPITS or SLT extension. KX-T7625 Features: Digital Corded Phone, Speakerphone, Dual Color LED Status Lights, Up To 8-Way Conferencing, Speed Dial, Forwar/ Do Not Disturb (DND), 20 Ringtones / 10 Musical Ringers, Intercom / Paging Key, Auto Dial / Redial / Answer, Hold / Flash, Pause / Transfer, Navigator Key, Headset Jack, Off-Hook Voice Announce, 24 Flexible Outside (CO) Line Buttons, eXtra Device Port (XDP), Multi-Angle Tilt Body, Background Music (BGM), Wall Mountable, Key Term Definitions Hybrid Phone: A phone that is hybrid is a mix between key systems and PBX systems. Over the years the differences between these 2 types have dwindled and so the benefits of both have been combined the term hybrid signifies the grouping. Digital Phone: Digital phones break up audio signal into a binary code ( series of 1s and 0s) and transfer the code to another device, which then takes the code and reassembles the signal. Analog takes the human voice and translates it into electronics pulses. Since digital breaks up the signal is it able to correct errors that may have occurred during transmission, delivering clearer conversation. CTI (computer telephony integration): This is an optional set of applications that will allow you to integrate your telephone system with your computer. These applications include one-click dialing, video conferencing, incoming call routing and more. Extra Device Port (xDP): The xDP is a connection path for a second single-line analog device. This device can share an extension number (cordless phone) with the system phone or work independently (modem, fax, etc.) Digital Extra Device Port (DXDP): The DxDP is a connection path for a full-featured, multi-line digital device. With this port you can add a second digital phone to your system with any additional modules or wiring. Power Over Ethernet (PoE): PoE technology allows power to be delivered to a remote device using the same cable lines used to deliver Ethernet data. The Ethernet cable serves a power cord. PoE allows you to install network devices in places where electrical outlets may be scarce."

Panasonic KX-T7625B Digital Proprietary Telephone $96.99 "Panasonic KX-T7625 (Black) Brand New Includes One Year Warranty, The Panasonic KX-T7625 is a digital proprietary telephone with 24 buttons and speakerphone. This device has easy to use navigator keys and comes with 24 programmable CO keys with dual color LEDs. The KX-T7625 also has conference facility of up to 8-party and XDP/DXDP jack for adding another KX-T7600 DPITS or SLT extension. KX-T7625 Features: Digital Corded Phone, Speakerphone, Dual Color LED Status Lights, Up To 8-Way Conferencing, Speed Dial, Forwar/ Do Not Disturb (DND), 20 Ringtones / 10 Musical Ringers, Intercom / Paging Key, Auto Dial / Redial / Answer, Hold / Flash, Pause / Transfer, Navigator Key, Headset Jack, Off-Hook Voice Announce, 24 Flexible Outside (CO) Line Buttons, eXtra Device Port (XDP), Multi-Angle Tilt Body, Background Music (BGM), Wall Mountable, Key Term Definitions Hybrid Phone: A phone that is hybrid is a mix between key systems and PBX systems. Over the years the differences between these 2 types have dwindled and so the benefits of both have been combined the term hybrid signifies the grouping. Digital Phone: Digital phones break up audio signal into a binary code ( series of 1s and 0s) and transfer the code to another device, which then takes the code and reassembles the signal. Analog takes the human voice and translates it into electronics pulses. Since digital breaks up the signal is it able to correct errors that may have occurred during transmission, delivering clearer conversation. CTI (computer telephony integration): This is an optional set of applications that will allow you to integrate your telephone system with your computer. These applications include one-click dialing, video conferencing, incoming call routing and more. Extra Device Port (xDP): The xDP is a connection path for a second single-line analog device. This device can share an extension number (cordless phone) with the system phone or work independently (modem, fax, etc.) Digital Extra Device Port (DXDP): The DxDP is a connection path for a full-featured, multi-line digital device. With this port you can add a second digital phone to your system with any additional modules or wiring. Power Over Ethernet (PoE): PoE technology allows power to be delivered to a remote device using the same cable lines used to deliver Ethernet data. The Ethernet cable serves a power cord. PoE allows you to install network devices in places where electrical outlets may be sc"

Panasonic KX-T7625W Digital Proprietary Telephone $62.99 "Panasonic KX-T7625 (White), The Panasonic KX-T7625 is a digital proprietary telephone with 24 buttons and speakerphone. This device has easy to use navigator keys and comes with 24 programmable CO keys with dual color LEDs. The KX-T7625 also has conference facility of up to 8-party and XDP/DXDP jack for adding another KX-T7600 DPITS or SLT extension. KX-T7625 Features: Digital Corded Phone, Speakerphone, Dual Color LED Status Lights, Up To 8-Way Conferencing, Speed Dial, Forwar/ Do Not Disturb (DND), 20 Ringtones / 10 Musical Ringers, Intercom / Paging Key, Auto Dial / Redial / Answer, Hold / Flash, Pause / Transfer, Navigator Key, Headset Jack, Off-Hook Voice Announce, 24 Flexible Outside (CO) Line Buttons, eXtra Device Port (XDP), Multi-Angle Tilt Body, Background Music (BGM), Wall Mountable, Key Term Definitions Hybrid Phone: A phone that is hybrid is a mix between key systems and PBX systems. Over the years the differences between these 2 types have dwindled and so the benefits of both have been combined the term hybrid signifies the grouping. Digital Phone: Digital phones break up audio signal into a binary code ( series of 1s and 0s) and transfer the code to another device, which then takes the code and reassembles the signal. Analog takes the human voice and translates it into electronics pulses. Since digital breaks up the signal is it able to correct errors that may have occurred during transmission, delivering clearer conversation. CTI (computer telephony integration): This is an optional set of applications that will allow you to integrate your telephone system with your computer. These applications include one-click dialing, video conferencing, incoming call routing and more. Extra Device Port (xDP): The xDP is a connection path for a second single-line analog device. This device can share an extension number (cordless phone) with the system phone or work independently (modem, fax, etc.) Digital Extra Device Port (DXDP): The DxDP is a connection path for a full-featured, multi-line digital device. With this port you can add a second digital phone to your system with any additional modules or wiring. Power Over Ethernet (PoE): PoE technology allows power to be delivered to a remote device using the same cable lines used to deliver Ethernet data. The Ethernet cable serves a power cord. PoE allows you to install network devices in places where electrical outlets may be scarce. Ethernet Switch: Network switch that transmits data at Ethernet standar"

Uniden Corded Telephone System with Digital Answering System $79.99 Store up to 100 names and numbers in this Uniden D1788-2T corded telephone system that features a built-in phone book that makes looking up contacts easy. Two cordless handsets allow you to roam freely around your home while talking on the phone.

Uniden EXP4540 2.4GHz Cordless Telephone $16.99 1 10 2.40 GHz EXP4540 2.4GHz Cordless Telephone Rechargeable Ni-Cd Battery Cordless EXP4540 EXP4540 2.4GHz Cordless Telephone Handset Locator Hearing Aid Pulse/Tone RF Redial Speed Dial Standard Phone Uniden Uniden Corporation Volume Control Yes www.uniden.com

3.60V CORDLESS TELEPHONE REPLACEMENT NI-CD BATTERY $19.96 Cordless telephone replacement Ni-Cd battery. 3.6V, 800mAh. Connector D.

This entry was posted on Friday, July 29th, 2005 at 1:44 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.