Lucent Technologies Release 8.2 manual Distributed Communications System Private Networking

Distributed Communications System B Private Networking

UDP conversion is specified for individual extensions or groups of extensions sharing the same leading digits, via the UDP form and extension codes. An extension code is the desired leading digits of an extension followed by an “x” (wildcard). For example, “123xx” “12345”is the extension code for all 100 possible extensions beginning with “123” plus two wild cards. “12345” is an extension code specifying one extension.

Each extension code can be assigned to 1 of 6 possible treatments.

•UDPCode — Conversion to AAR with given location code, further conversion suppressed

•AARCode — Conversion to AAR with given location code, further conversion allowed

•ENPCode — Conversion to private network number (via ENP form), route to given node number routing

•TempOOS — Temporarily out of service, give reorder

•Local — Local range of extensions

•blank — Similar to local, however, this extension is not chosen when the system is asked to “add a station”

When a user at a switch that is included in a UDP dials an extension, DEFINITY ECS first checks to see if the extension is assigned to a local station on that switch. If so, the call is routed to the station, and UDP is not invoked. If the extension is not found locally, the system checks to see if the extension matches an assigned extension code. If the extension matches an assigned extension code, the system performs the specified conversion into a private network number and routes the call as specified. If more than one extension code matches, the “best” match (most explicit digits) is used. For example, 1234x is chosen over 123xx if 12345 is dialed. However, 123xx is chosen if 12355 is dialed. If no matching extension code is found, the user receives intercept treatment. Or, if Extended Trunk Access (ETA) is enabled, the call routes via ETA.

Example of how UDP To administer, assign each UDP code: works

•To a private network location code (RNX) or node number. (The RNX is equivalent to an office code of a central office in a public network. This RNX determines how a UDP call is routed.)

•Assign each UDP code as either local or remote to the switch.

To understand the function of a UDP, review the following example.

Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000	CID: 77730	351