his telephone (single line telephone) can be used by connecting it to a Panasonic PBX (KX-TE, TDA, TDE, NCP series). Features

Ringer / Message Lamp

The KX-T7716's ringer / message lamp helps you catch all the important calls.
A red light illuminates to visually alert you when a call comes in or when someone has left a message, for convenient use in hotel guest rooms or offices.

20 Phone Numbers in One-Touch Dial Buttons

You can store up to 20 phone numbers in the one-touch dial buttons (10 numbers in both upper and lower memory locations).
One-touch dial buttons save you time and trouble when calling a client, customer, or associate you often speak with.

Caller ID Compatible

When a call is received, the name and phone number registered in the phone book are displayed, so you can check who is calling before picking up.

KX-T7716 :
Caller information for the last 50 callers
KX-T7705 / KX-T7703 :
Caller information for the last 30 callers

Speakerphone and Headset for Hands-Free
Conversation ( KX-T7716, KX-T7705 only )

You can use the speakerphone or headset for hands-free conversations. Since you dont need to pick up the handset, this enables you to do other work while having a conversation.

Restricting Calls ( KX-T7716 only )

You can restrict the phone from making calls to all numbers (Dial Lock) or to specific external numbers (Call Restriction). Restricting phones placed in locations where people other than employees are present enables enhanced security.