AT&T 555-230-520 manual Service Observing VDNs, Vector Control Flow

Vector Processing

■Serving as a coverage point for specific call operations (for example, sending calls to a secretary during the day and to AUDIX at night).

VDN as a coverage point is illustrated in Chapter 4, "Basic Call Vectoring".

Service Observing VDNs

The Service Observing feature provides the option of being able to observe VDNs with G3V3 and later releases. With this option an observer selects a specific VDN and bridges onto calls (one call at a time) that have just started vector processing for that VDN. The observer hears all tones, announcements, music, and speech that the caller and the agent hear and say, including Call Prompting and caller dialing. Also, the observer hears VDN of Origin announcements. Once the system makes an observing connection to a call in vector processing, it maintains the connection throughout the life of the call until the call is disconnected or until the observer hangs up. This is true even if the call is routed or transferred externally. See “Service Observing” in the DEFINITY Communications System Generic 3 Feature Description, 555-230-204 for complete information about Service Observing VDNs.

Vector Control Flow

Vector Processing starts at the first step in the vector and then proceeds sequentially through the vector unless a goto command is encountered. Any steps left blank are skipped, and the process automatically stops after the last step in the vector.

The Call Vectoring ‘‘programming language’’ provides three types of ‘‘control flow’’ that serve to pass vector-processing control from one vector step to another. Control flow types are described in the following list.

■Sequential flow passes vector-processing control from the current vector step to the following step. Most vector commands allow for a sequential flow through the vector.

NOTE:

Any vector command that fails automatically passes control to the following step. The success and/or failure criteria for the Call Vectoring commands is discussed in Appendix A.

■Unconditional branching unconditionally passes control from the current vector step to either a preceding and/or succeeding vector step or to another vector (for example, goto step 6 if unconditionally).

■Conditional branching conditionally passes control from the current vector step to either a preceding and/or succeeding vector step or to a different vector. This type of branching is based on the testing of threshold conditions (for example, goto vector 29 if staffed-agents in split 6 < 1).

Issue 4 September 1995 3-11