Instruction manual

System Features
Least Cost Routing (LCR)
Strata DK General Description 6/00 81
♦ Number Delivery sends the calling number with the call setup message, if that number is not
blocked. The Strata DK handles the number the same way that ANI information from T1
trunks is handled. For instance, the number can display on the called telephone’s LCD, or it
can be used by TAPI interfaces, or it can be recorded in SMDR data records.
Least Cost Routing (LCR)
Different route plans may be designed to automatically place outgoing calls over the most cost-
efficient routes. See the table below for LCR capacities.
Three different LCR time schedules with their own priority schedules can be set up for the
business day. Stations can be grouped into one of eight LCR classes, each with its own routing
priority. Selected station users may have priority use of a line, even when the route with the lowest
cost is not available. LCR is compatible with ABR.
Line Groups
For easy access, various types of outside lines can be assigned to groups (normally for pooled line
and LCR applications). For example, all local lines can be assigned to one group and WATS lines
in another group. Station users access line groups by dialing an access code or by pressing a
feature button.
♦ DK14 provides up to four line groups
♦ DK40i provides up to eight line groups
♦ DK424i each provide up to 16 line groups
Line Queuing
A station user can use the Automatic Callback feature to enter the queue for a busy outgoing line.
When the line becomes available, the system calls the station back. Queuing applies to single lines,
line groups, and when calling via LCR.
Live System Programming
Programming the Strata DK from an on-site or off-site location does not interrupt the operation of
the system in most cases. It is interrupted for hardware upgrades.
Table 36 Least Cost Routing Capacities
DK424i
Least Cost Routing DK14 DK40i B1CU
B2CAU/B2CBU,
B3CAU/B3CBU
B5CAU/B5CBU
LCR route plans 8 8 8 16 16
Area Code/Office Code exception tables 8 8 8 16 16
Time schedules 3 3 3 3 3
Station classes 4 4 4 8 8
Route definition tables 4 4 4 6 6
Modify digit tables 6 6 6 12 12