13
2N TELEKOMUNIKACE a.s., www.2n.cz
1.3 Terms and Symbols Used
Terminology
Line pick-up/seizure/off-hook
– call start, line locked, busy.
Line hang-up/clear
– call end, handset hang-up.
DTMF
– dual tone multi-frequency signalling.
PSTN
– public switched telephone network.
Outgoing call
–
-telephone connection made, e.g. by a pressing a
2N Helios
®
button.
Incoming call
– telephone-
connection.
2N Helios
®
Programming mode
–
programming mode accessible from by
2N Helios
®
dialling into the intercom only.
Code lock
– mode for entering the password for switch 1 or 2 activation using a
numerical keypad.
Telephone mode
– you can make a call, dial a number and hang up using the
numerical keypad.
DTMF transmission during call
– for outgoing calls only, numbers are
tone-dialled by a numerical keypad button.
Button substitution
– the numerical keypad can be used instead of a number
pre-stored under a button memory.
Manual Symbols
The following symbols and pictograms are used in the manual:
Safety
by this information to prevent persons from injury.
Always abide
Warning
by this information to prevent damage to the device.
Always abide
Caution
Important information
for system functionality.
Tip
Useful information
for quick and efficient functionality.
Note
Routines or advice for efficient use of the device.
Summary of Contents for 9135130E
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