Lucent Technologies Release 8.2 manual 354 CID

Distributed Communications System			B Private Networking
	• If AAR is active, FRLs and Traveling Class Marks (TCMs) can be sent along with
		the private network number. UDPCode and AARCode conversions use the FRL
		assigned to the caller. ENPNode conversion always raises the FRL to the
		maximum (7).
		If an FRL is insufficient to access the facility, access is denied. There is no prompt
		for an authorization code even if authorization codes are enabled and
		administered.
	• If AAR is not active, tandem-tie trunks should not be used to transport UDP
		numbers. The TCM is not recognized at the terminating switch.
		Note: Never use tandem-tie trunks to transport UDP numbers (the TCM
		and Hop count will not be recognized as such following the
		extension received at the receiving switch).
Interactions	•	Automatic Alternate Routing
		AAR routes UDP calls. (Included with UDP is the required AAR subset.) If AAR
		is enabled in addition to UDP, then the 7-digit AAR number provides the same
		routing as UDP.
	•	Dial Plan
		~ All of the extension numbers on a switch are not necessarily part of UDP. Any
		that do not belong to UDP are handled by a regular, non-UDP Dial Plan
		associated with the switch.
		~ When administering the Dial Plan form and designating a group of extensions
		as UDP non-local, you can specify whether you want to search for local
		extensions first or last. This allows flexibility to change extensions from local
		to non-local and vice-versa.
	•	DID Trunk Group
		DID calls to 5-digit UDP extension numbers require that the DID trunk group
		insert enough digits to make a 5-digit extension number.
	•	Distributed Communications System
		UDP is required when DCS is provided. The necessary UDP software is provided
		with the DCS software.
	•	Extension Number Portability
		If an extension code is administered to use ENP node routing, ENP routes the call

to the correct switch. If AAR is enabled in addition to UDP, the 7-digit AAR number provides the same routing as UDP (that is, via ENP).

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