Entering Telephone Numbers

Here are some pointers on entering telephone numbers:

Note: Special characters are optional. For example, you can type 3175551212 or (317) 555-1212.

You can also type letters that are translated into the corresponding numbers from a telephone keypad. For example, Q is a seven and Z is a nine.
You can type both commas (,) and slashes (/) with the number you type. A comma causes a two-second delay. Numbers typed after the slash are dialed only after a connection is made.

For example, if you type the number 555-1212 / 101, 2222, the first seven digits are dialed. After a connection is made, the digits 101 are dialed, and after two seconds, the digits 2222 are dialed.
You can use two number signs ( ##) to enter additional DTMF tones that are required before the carrier connects the call. A common use is including a carrier account code when dialing a remote station, for example, 317-555-1212##1234.