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7.2.1
List of special characters
* Use as bypass key.
+ Use to precede an international telephone number.
, Use to create a pause when a number is dialed.
The numbers you enter after this special character are automatically sent as touch
tones after a 2.5-second pause.
? Use to create a “wait” when a number is dialed.
This means that your phone waits for you to press
before it sends the
number as touch tones.