Headset connector

This is where the optional hands-free headset is connected. The headset includes an earbud and microphone in a convenient, lightweight unit so you can talk without using your hands.

Before inserting the hands-free headset connector to your phone, gently pry open the top of the cover to expose the headset connector.

LED indicator

The LED indicator flashes to indicate an incoming call or message. When you have the phone ringer set to off, the LED indicator notifies you of an incoming call or message.

The LED indicator lights momentarily when you power up the phone.

Menu key

Press to enter the menu selection.

Microphone

The microphone is used for conversation and recording.

Keypad

Use these keys to enter text, numbers, and special characters.

OK/Message key

The key stores information that you enter. When in standby mode, functions as a Message menu access key to send messages and review received messages.

Speaker

The speaker is for listening to voice conversations.

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Samsung SPH-A540 manual Headset connector, LED indicator, Menu key, Microphone, Keypad, OK/Message key, Speaker