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ASR 32 Business Rules

The following is a list of all details for field ESN - Emergency Service Number in the TRUNKING form:

	ASR Version: 32			Field Number: 72
	Form: TRUNKING			Field Length: 5
	Section: SVC DETAIL			Characteristics: Numeric
	Field: ESN - Emergency Service Number			Usage: Conditional

	Definition:
	Identifies a three-digit default that determines the PSAP to which the call will be routed should an ANI failure occur.