Cisco Systems SPA9000 Acceptance and Transmission the Dialed Digits, Terminating Event Processing

Configuring Phone Lines and Calling Routing Behavior	4
Configuring Dial Plans

Acceptance and Transmission the Dialed Digits

When a user dials a series of digits, each sequence in the dial plan is tested as a possible match. The matching sequences form a set of candidate digit sequences. As more digits are entered by the user, the set of candidates diminishes until only one or none are valid. When a terminating event occurs, the SPA9000 either accepts the user-dialed sequence and initiates a call, or else rejects the sequence as invalid. The user hears the reorder (fast busy) tone if the dialed sequence is invalid.

The following table explains how terminating events are processed.

Terminating Event	Processing
The dialed digits do not match	The number is rejected.
any sequence in the dial plan.
The dialed digits exactly match	• If the sequence is allowed by the dial plan, the
one sequence in the dial plan.	number is accepted and is transmitted
	according to the dial plan.
	• If the sequence is blocked by the dial plan, the
	number is rejected.
A timeout occurs.	The number is rejected if the dialed digits are
	not matched to a digit sequence in the dial
	plan within the time specified by the
	applicable interdigit timer.
	• The Interdigit Long Timer applies when the
	dialed digits do not match any digit sequence
	in the dial plan. The default value is 10
	seconds.
	• The Interdigit Short Timer applies when the
	dialed digits match one or more candidate
	sequences in the dial plan. The default value is
	3 seconds.
The user presses the # key or	• If the sequence is complete and is allowed by
the dial softkey on the phone	the dial plan, the number is accepted and is
display.	transmitted according to the dial plan.
	• If the sequence is incomplete or is blocked by
	the dial plan, the number is rejected.

SPA9000 Voice System Administration Guide 71