AT&T 555-230-520 manual ADR Example

Functions and Examples

Look-Ahead Interflow with AT&T Network

Alternate Destination Redirection (ADR)

Call Vectoring and Look-Ahead Interflow are compatible with and supplement the AT&T network services Alternate Destination Redirection (ADR) rerouting feature. ADR uses ISDN-PRI connectivity with the customer-premises PBX/ACD in the same manner as Look-Ahead Interflow to allow the receiving PBX/ACD to indicate whether a call is to be accepted or rejected. The same type of vector used as a receiving ACD for Look-Ahead Interflow is used at the ADR-receiving ACD. If the call is accepted, it is connected through from the network to the PBX/ACD. If the call is rejected, the network routing number is translated to another number, which routes the call to the alternate location within dialing-plan constraints. ADR allows for only one alternate location. Look-Ahead Interflow can be used at the alternate location to test other locations for less busy conditions.

The following figure shows configuration for a multilocation application.

	ISDN-PRI	ACD
		A	1. goto step 3 if available-agents in split 4 < 1
AT&T
		(primary)	2. goto step 4 if oldest-call-wait in split 4 pri l < 60
Megacom 800
			3. busy
network
			4. queue-to main split 4 pri l
with ADR
			5. wait-time 30 secs hearing ringback
		ACD	6. announcement 12
			7. wait-time 30 secs hearing music
		B
		(secondary)

Figure 8-6. ADR Example

The AT&T network requires ISDN-PRI connectivity to primary location A. Connection to secondary location B may or may not be ISDN-PRI. ADR attempts to route the call to location A over the ISDN-PRI link using a routing number that selects a VDN assigned to the receiving vector shown. When the routing attempt is made, Call Vectoring starts processing the vector. The example then proceeds at location A as follows:

1.Step 1 checks for staffing of the ACD split, and branches to step 3 if it is not staffed.

2.If the ACD split is staffed, step 2 checks the oldest call waiting time in the split, and branches to step 4 if it is less than 60 seconds.

3.If the ACD split is unstaffed or if the oldest call waiting time is 60 seconds or more, step 3 rejects the call (returns a busy indication to the network).

Issue 4 September 1995 8-13