Functions and Examples

applies, and vector processing terminates. (Even if the destination is busy, vector processing terminates because coverage call processing takes effect.)

NOTE:

From time to time, all of the system’s TTRs might be in use. As a result, you should avoid starting your main vector with a collect digits command, since the caller in this case receives no audible feedback if he or she has to wait for a TTR to become available. Accordingly, it is a good practice to include some treatment (for example, wait-time 0 seconds hearing ringback) before the initial collect digits step.

Using Digits to Collect Branching Information

Call Prompting allows you to direct a call to another step or vector based on the digits entered by the caller. This branching is accomplished with a goto step. For example, in the following vector digits are used to route calls to different vectors based on an assigned customer number.

1.wait-time 0 seconds hearing ringback

2.collect 5 digits after announcement 200 (“Please enter your customer number)

3.goto vector 8 if digits = 10+

4.goto vector 9 if digits = 11+

5.goto vector 10 if digits = 12+

6.route-to number 0 with cov n if unconditionally

7.stop

Figure 5-2. Using Digits to Collect Branching Information

The wildcard “ +” indicates that the two digits can be followed by any number of additional digits (zero or more digits). So, customers with a number that begins with the digits 10 are routed to vector 8, customers with a number that begins with the digits 11 are routed to vector 9, and customers with a number that begins with the digits 12 are routed to vector 10.

Vector Routing Tables

When G3V4 Enhanced Vectoring is enabled, you can also test digits against entries in a Vector Routing Table.

Vector Routing Tables contain lists of numbers that can be used to test a goto...if digits command. Digits collected with the collect digits step can be tested to see if they are either in or not-inthe specified table. Entries in the tables can include either the “ +” or “?” wild card.

The “+” rep resents a group of digits and can only be used as the first or last character of the string.

Issue 4 September 1995 5-7

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AT&T 555-230-520 manual Using Digits to Collect Branching Information, Vector Routing Tables