Multitech CallFinder CF220-DID Cabling Manual page 5

CallFinder Operation
The CallFinder brings analog DID services to a key telephone
system or PBX that is not DID-enabled.
Prerequisite: Ordering the DID Lines
To operate the CallFinder system, you will need one or two DID
(Direct Inward Dial) lines in your office. You must order the DID
lines from your local telephone operating company (telco). A
DID line allows one phone line to be associated with multiple
directory numbers. However, only one call can occur on this line
at any given time.
DID lines are sold in groups. For example, a telco in New York
City might offer a DID line with a set of 10 directory numbers in
the range of 212-555-4100 through 212-555-4109.
When ordering your DID line, ask the telco representative for
these details about the DID service. These details will be
important when setting up your CF220-DID unit.
Parameter
Number of digits used to designate the
DID extension (usually 3, 4, 6, or 7)
Type of "DID Start" used (wink,
immediate, or delay dial)
You will need this information to configure your CallFinder unit
later.
MultiTech Systems, Inc.
CallFinder Cabling Guide
Value Required
by Telco
5