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Prevents data transmission errors caused by Call Waiting tones when using computer modems.
To Cancel Call Waiting before making a call:
1. Press * 7 0 then listen for three beeps and a steady dial tone.
2. Dial desired telephone number.
To Cancel Call Waiting during a call (Three-Way calling feature is required):
1. Depress switchhook, then listen for three beeps and a steady dial tone.
2. Press * 7 0 then listen for three beeps.
3. Wait for automatic reconnection to existing call.
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