Sony CLIE PEG-TH55 Handbook page 114

Setting the Network preferences for your provider and dial-up server
Note
The calling card option works correctly only for AT&T and Sprint long distance
services. If you want to call by MCI, you need to set your telephone information by
entering the calling card number in the field for [Phone #:] and the phone number
in the field for [Use calling card:].
1 Tap next to [Use calling card:] to change to .
2 Enter your calling card number (e.g., ",,,,123456...") in the field next to
[Use calling card:].
Tip
Usually, waiting time is needed before entering a calling card number. When you
enter your calling card number, insert at least three commas before your calling card
number for rectifying the waiting time (transmission of a calling card number
delays for 2 seconds per one comma).
4
Tap [OK].
The Preferences screen for [Network] is displayed.
114
Customizing your CLIÉ™ handheld (Preferences)