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Understanding Cordless Telephones

Last Updated: Jun 21, 2018 09:58AM CDT
In a world where more and more people are using cell phones, it sometimes feels like having a cordless telephone is becoming a thing of the past.  As the younger generations grow, never having a household phone, and then eventually get a house, and see the benefit of a cordless phone in the house, many might feel lost and what was considered common knowledge is no longer.  Feel free to read this guide to educate yourself on the basics.

Digital vs. Analog

The difference between the digital phones and the analog phone is the transmission type.
  • Analog-  An analog phone transmits without encoding or translation.  Which means it is a non-secure transmission or not a private transmission.  Analog phones are almost never sold anymore, but there are still some being used.
  • Digital-  A digital phone transmits with encoding or encryption.  Which means no one can pick up your conversation when speaking on that phone due to the encryption built into it.  If someone tries to pick up a conversation with an encoded phone for identity theft or just to listen in, it will not allow transmission. 

Features and Set Up:
(The Features of a model depends on if the unit is analog or digital.)
The Analog models usually are basic with and without answering machines.
  • Basic models without AM include: Caller ID, transferring call capability and 10-speed dial memory. These models have basic set up options such as: Auto Talk (on/off), Caller Id Call Waiting (on/off), Dial Mode (tone/pulse), Language (English, Spanish, France) and Area Code options.
  • If the Model has an answering machine built in there will be added AM features such as: remote operation, day/time, ring time, record time, message alert , 3 options for language change (English, Spanish, French) and security code (Pin Code). Some of the basic models with these features include: EXI4246, EXAI4248AM, DXAI4286-2, DXAI4288-2AM, EXI5560, EXAI5580AM,EXAI8580.
  • NOTE: DXAI, DXI, CXAI, CEZAI998 (Two people cannot speak on both handsets at the same time). These models do not having a conferencing feature. DXAI4286-2, DXAI4288-2, DXAI5588-2, DXI5586-2. Some basic models have intercom from handset to base and speakerphone on the handset features, mostly the Specialty models.
The Digital models are usually more complex with many more features with and without answering machines. These complex features include all the basic features plus more.
  • For models without answering machines features include Voice Mail Indicator, Phonebook options (storing, editing, erasing, personal ring, speed dial, and copying), Room Monitoring, Direct link Mode (2-way Radio Capability), Banner Display (changing), Intercom from handset to handset and base to handset, Hold option, Conferencing feature (Speaking on multiple handsets at once), Ringer tones options, Auto Talk, Any Key Answer, Language (change on HS & Base) and other features. These models include: DCT736, DCT746M, DCT5260, DMX776, DCT7565, DCT756, DCT646, AND DCT6465, TRU8860, TRU9460.
  • For the models with answering machines they have the above features. Also the added answering machine features such as: Date/Time Display, Call Screening on/off options, CIDCW on/off, 100 caller id/phonebook locations (both share locations), answering machine set up options such as ring time, record time, on/off AM, security code, remote operation, and language change on both the handset and base. These models include: DCT648, DCT6485, DCT758, DCT7585, DCT738, DCT 748,TRU8885, Tru8888, TRU8880, TRU9485, TRU9496.
There Are Four Main Categories of Cordless Phones:
  • Basic Phones usually are XCA or EXP models.  Both models have a speed dial option but nothing else.  No Caller ID, Inexpensive and very few features.  When troubleshooting these phones, it’s pretty simple they either work or not.
  • Caller ID Phones usually these models have No Answering Machine but they have multiple features.  An example of these models are DCT756, DCT736 and EXI4561 they can be analog or digital.
  • Basic ITAD Phones are discontinued models that have No Caller ID but they do have a built in Answering Machine.  An example of these models include but are not inclusive to EXP2905, EXA950, EXA915, EXA7250 and EXA2950.
  • Combination Phones usually include both Caller Id and Answering Machines.  These models are more expensive with lots of different features.  Such as Speakerphone on the handset and base also keypads on both handset and base, as well as many other features.  Examples of these models are the corded/cordless combination and models ending in “85”.


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