Step 1- Choose how many phones/handsets you need.
Dual- and Multi-handsets operate independent of the phone base, and collectively use only one phone jack. They're a great alternative to using separate phones throughout your home. Most multi-handset phones offer features such as handset speakerphone and handset-to-handset call transfer. Currently, certain phone systems can be expanded from 2 to 10 total handsets, depending on your needs.

Step 2- Choose the features.
Speakerphone- This feature allows you to talk hands-free from the phone base, and sometimes even the handset.

Dual Keypad- A keypad is offered on both the handset and the phone base. When used in conjunction with speakerphone, it's a very helpful feature when your handset is MIA.

Digital Answering Machine- Stores messages on an IC chip instead of a tape. Your messages are easily accessible, and can be selectively skipped, repeated or deleted.

Step 3- Choose the range you need.
2.4 Ghz- This range is relatively uncrowded, making it less susceptible to interference.

5.8 Ghz- With a 5.8 Ghz cordless phone, there's even less possibility of interference from other devices.

Digital Spread Spectrum- Provides a higher power output for greater range, and offers constant switching from channel to channel for further improved security.