Specifications

CONTENTS
4.1.13
INCOMING/OUTGOING SERVICE
Outside lines are available for incoming or outgoing service. Programming allows
any outside line to be used for incoming calls only, outgoing calls only or both way
service.
INDIVIDUAL LINE CONTROL
Each station in the system can be individually programmed to allow or deny dialing
out as well as allow or deny answering for each outside line.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) INTERFACE
The DCS 50si supports ISDN Basic Rate Interface (BRI) in both station and trunk
formats. The S4BRI card for the DCS 50si consists of four circuits each of which
can support two channels for a total of eight channels per card. The DCS 50si can
support a maximum of 6 BRI cards giving a total of twenty-four circuits or 48 chan-
nels.
An SPLL daughter board must be installed in the system to provide clocking for the
BRI cards.
TRUNK INTERFACE
When configured as a trunk a BRI circuit will support the following protocols:
l National ISDN 2
l AT&T 5ESS Custom
l Nortel DMS 100 Custom
INTEGRATED VOICE MAIL
The DCS 50si has a dedicated slot in the expansion cabinet to contain a CADENCE
(VM8A) card. This card can be used with both four ports and eight ports (one or two
Voice Processing Modules installed). This will allow such features as Call Record,
Answering Machine Emulation and Soft Key mailbox administration. NOTE: Install-
ing the CADENCE board reduces the maximum number of stations on the system
to 32.
LEAST COST ROUTING
Least Cost Routing (LCR) is the ability to automatically select the most cost effec-
tive central office route for the outside number dialed by any station. The DCS 50si
LCR program includes the following features:
l Option to use or not use LCR or a tenant basis
l Programmable LCR access code
l Digit analysis table 1000 entries each with ten digits
l Routing by time of day and day of week (4 time bands per day)
l Routing according to individual station class
l Modify digits table 100 entries
l Flexible trunk group advance timer
l Option to use or not use trunk group advance warning tones