How can I operate the call functions of the device?
When connected to two phones, the voice prompts help manage cal functions such as voice dial, redial, and end call. Follow the voice prompts to execute a function on the desired phone.
Answer Calls
- When phone rings.
- Press the
Call button.
Reject Call
- When phone rings.
- Press and hold the
Volume up or 
Down button until you hear a tone.
Make a Voice Dial Call
- Press theCall button. .
- Follow the voice prompts.
Redial Last Call
- Press and hold theCall button until you hear an audio tone, then follow the voice prompts.
Mute or Unmute a Call
- During a call, press the
Mute button, you'll hear, "Mute On" or "Mute Off". (The Mute light will stay solid red while muted.)
Answer second incoming call
- During a call, press theCall button. The current call is placed on hold so you can answer second call.
Reject second incoming call
- Press the Volume up or Down button.
End a call
- Press theCall button. If call is on hold, it is resumed.
Note: Your TX550 supports both Handsfree and Headset Profiles. Accessing call functions depends upon which profile your phone supports. See your phone's user's guide for more information.
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