Lucent Technologies 555-661-150 manual Calls to Area Code

Table 2–20. Scenario 4: Facilities Planning, Calls Originating within the Network and Going to the PSTN: System E and H, Continued

Component	System E: Baltimore, MD (Area Code: 410)	System H: Reston, VA (Area Code: 703)
ARS Routing:	For primary routes serving calls to area codes 509 and	Routing specifies pools of tandem PRI facilities, which are
Calls to Area Code	512, the FRL is 0.	also used for non-local extension calling.
of Non-Local	The FRL is higher for primary routes to areas near but not	The FRL is 0, 1, or 2 for calls using private network area
System
	in the same area code as one of the other private network	codes: 410, 512, and 509. FRLs are higher for other area
(Absorb = 0;	systems. A 218 or 713 area code route (Houston) via the	codes, depending upon the time of day and toll costs.
Prepend = 9)	smaller tandem tie trunk pool has an FRL of 4.
	Secondary routes using the PSTN have FRLs as high
	as 6.
Centralized	Integrated VMI calling group extension: 7771	Integrated VMI calling group extension: 7771
VMS/AA	Local dial plan members: Extensions for system ports	VMI conversion number (non-local dial plan member:
	used to connect centralized VMS/AA	6999
	Message Waiting light updates for non-local subscribers	UDP routing over route 01, tandem PRI trunks, FRL=0,
	at System F and System H are sent over the tandem PRI	voice, all dialed digits are absorbed and the digits 7771
	signaling D-channel; Message Waiting light updates for	are prepended.
	non-local subscribers at System G are sent over the
	tandem tie trunks;

2 Call-Handling Scenarios Network Configuration Scenarios	MERLIN LEGEND Communications Network Reference 555-661-150
	System Release 6.1

Page2-83 Issue 1 August 1998