Corded phones are standard phones with a cord connecting the headset to the base. Cordless phones require no wire from the headset and allow for greater mobility within the range of the phone. Cordless extension phones are add-ons that work through the same phone line as a pre-exisiting phone and base.
Expandability
Up to 12 cordless handsets (1 included)
Some phones can handle more than one phone line. This is important if you want to use one phone but have more than one phone line.
Features
Caller ID, Call Waiting, Answering System, Speakerphone, Handset Locator, Intercom, Voice Mail, LCD Display, Selectable Ringtones
Conference Call Capability
Yes