Page 5-151
System Features
INTER-TEL
®
AXXESS
®
MANUAL VERSION 11.0 – May 2008
Off-Premises Extensions (OPX)
FEATURES
5
Off-Premises Extensions (OPX)
12.116Off-premises extensions are remote single-line DTMF sets that are connected to the
phone system through telephone company [network provider] OPX circuits (customer-pro-
vided circuits).
12.117Off-premises station users gain access to the features by hookflashing, pressing and
releasing the hookswitch quickly (pressing the
RECALL button), and entering feature codes.
12.118Some telephone company [network provider] off-premises extension (OPX) networks
do not recognize certain single-line set ring cadences used in the phone system. This incompat-
ibility results in an inability to provide certain ring signals to off-premises extensions. Because
of this, the system is equipped with a station option (Extended Ring Cadences) which allows
the ring cadences be altered for individual single-line circuits. See page 6-211 in PROGRAM-
MING for details.
12.119 Another programming option (the OPX Gain Levels flag) allows the receive and trans-
mit gains to be automatically adjusted to improve OPX communication with the central office
[local exchange]. See page 6-212 in PROGRAMMING.
NOTE: OPX circuits can connect to SLA, T1, or E1 circuits.
OFF-PREMISES EXTENSIONS
SYSTEM
DKSC
OPX
System
or other
SLA
B1
B2
chassis
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