Southwestern Bell 26955 - Manual (Page 58)

58
Number of digits Explanation Example
Eleven digits long distance code “1”
+ 3-digit area code
+ 7-digit telephone number.
1-317-888-8888
Ten digits 3-digit area code +
7-digit telephone number.
317-888-8888
Seven digits 7-digit telephone number. 888-8888
NOTE: If the phone company does not supply all ten digits of an incoming
caller’s number, you will not be allowed to adjust the format of that number.