Configure phone number modifiers

Open Network Connections.
Right-click the dial-up connection you want to configure, and then click Properties.
On the General tab, modify the phone number by using one or more characters from the following list.

Character	Function
, (comma)	Pauses briefly (two seconds for most modems) before continuing.
P	Switches from touch-tone to pulse/rotary dialing.
T	Switches from pulse/rotary to touch-tone dialing.
$	Waits for a calling card prompt tone.

For example, when you dial in from a hotel room, you may have to add 9 to the number you are calling to get an outside line. Your number may look similar to the following:

9,555-0100

The comma after the 9 gives a pause long enough to get an outside line before continuing to dial the full number.

Notes

To configure phone number modifiers, you must be logged on as a member of the Administrators group.
XOX
By selecting the Use dialing rules check box, and then clicking Dialing Rules, you can create a Location for which specific dialing rules automatically apply. For example, if you frequently connect from home and need to disable call waiting, you can create a location for use from home that automatically dials the code to disable call waiting before the connection call is placed.
If you see unfamiliar characters being dialed before your number, check to make sure the Use dialing rules check box is not selected. If it is selected, a location may be enforcing a dialing rule that you do not need. For example, a location may be selected that always dials 1 to accommodate long distance dialing.