- Answering machine: The extra cost of a model with built-in answering machine can be recouped within a year compared with the cost of paying a phone company for voicemail.
- Message indicator light: If you use your phone company's message service, a message light is useful.
- Bluetooth connectivity: Lets you connect up to two bluetooth-equipped mobiles to your cordless system – so you can use your mobile to make and take landline calls as long as it’s within bluetooth range of the base-station.
- Speaker phone: This lets you use the phone hands-free - a good feature when you're hands-on in the kitchen. It's also handy if you've got a crowd who want to listen.
Multiple handset option: Lets you register other handsets to the base station, though only one outside call can be made at a time. Multiple handsets can also be used as intercoms. With GAP-compliant DECT phones the handsets can be of different makes (see the 'Choosing the right phone' for more about DECT-GAP).
Sometimes you can get a "pack" with at least one extra handset for not much more than you'll pay for a single phone. If you have a two-storey house – or a home office or work area – having more than one phone can be handy.
Corded phones: A corded phone in the base station lets you make calls during a power cut – useful if you don’t already have another corded phone or a mobile.
Caller ID: Lets you see the phone number of the caller, before you answer. The caller's name can also be displayed, if their details are in the phone's directory.
Headset port: Allows wearing a headset as another form of hands-free phoning.
Baby monitor: Allows monitoring of sounds in another room, such as a baby crying.
Adaptors: Most models come with a low-voltage, plug-in power adaptor. A safety approval number on the adaptor shows compliance with electrical safety requirements.
Conversation recording: Digitally records conversation – especially useful for taking notes during phone meetings.
Emergency alert: Emergency alert pendants can be worn around the neck, arm or waistband and are small enough to be unobtrusive. They're connected to the cordless phone’s base station and at the push of a button will call up to 5 user-programmed numbers one after the other until the call is answered. This system would be useful for anybody who might require emergency assistance at any time. It works as long as the user is within range of the base station – that’s usually inside the home and (maybe) in the garden.
Smartphones: The Panasonic KX-PRW120 lets you connect up to 4 smartphones using your WiFi. This lets you make and receive landline calls from the connected smartphone(s).