AT&T DS1/DMi/ISDN-PRI manual Application for Case 4 being selected

7-138ADMINISTRATION OPTIONS AND REQUIREMENTS — GENERIC 1

Case 4

●Service/Feature field is specified (for example, mega800).

●Called Len field is not specified (that is, left blank).

●Called Number field is not specified (that is, left blank).

Application for Case 4 being selected

Assume the switch receives a MEGACOM 800 call that has a called-party number IE with the digits 75442. Based on the Service/Feature field alone, this call will match Case 1, 2, 3, and 4. However, on analyzing the Called Party Number IE, it is determined that there are the following 5 leading digits (75442). Case 3 does not match because it requires 4 digits. Case 1 and 2 both require 5 digits, but specify an 8 as the leading digit and therefore do not match. For Case 4, the Called Len and Called Number fields are blank, which matches any number regardless of the number of digits or digit format.

Case 5

●Service/Feature field is specified as other.

●Called Len field is specified with a requirement of N digits (for example, N = 5).

●Called Number field is specified with M leading digits, where M is a number of digits less than N (for example, the three digits 855).

Case 6

●Service/Feature field is specified as other.

●Called Len field is specified with a requirement of N digits (for example, N = 5).

●Called Number field is specified with M leading digits, where M is a number of digits less than N (for example, the single digit 8).

Case 7

●Service/Feature field is specified (for example, other)

●Called Len field is specified (for example, N)

●Called Number field is not specified (that is, left blank)

Case 8

● Service/Feature field is specified (for example, other)