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CONSIDERATIONS
FIGURE 2-16 A Basic Telephone and Modem Interface (BTMI).
TEL. DEVICE
TIMER JACK
RINGING MODE
NORMAL TIMED
FIGURE 2-17 A basic telephone connected to a BTMI.
Line jack
Tel.
device jack
4-Pair 2-Pair
modular cord
modular cord
When the system administrator assigns lines to a basic telephone, the
administrator must provide the user with a list of codes for the lines
and/or line pools he or she can access.
While Night Service with Outward Restriction is in effect, people with
basic telephones cannot enter a password to make calls. To allow them
to make after-hours calls, the administrator must assign these basic
telephones to the Exclusion list. (See “Night Service.”)
Basic telephones can receive ringing intercom calls, but not intercom calls
with voice announcement.
2-172 Accessory Equipment