The KX-TS840MX's ringer lamp helps you catch all the important calls. A red light illuminates to visually alert you when a call comes in, for convenient use in hotel guest rooms or offi ces.
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.
You can use the speakerphone or headset for hands-free conversations. Since you don’t need to pick up the handset, this enables you to do other work while having a conversation.
You can restrict the phone from making calls to all numbers (Dial Lock) or to specic external numbers (Call Restriction). Restricting phones placed in locations where people other than employees are present enables enhanced security.