Mode
DTMF (Dual Tone
Multi-Frequency)
Pulse Dial (Rotary)
Conditions
•
Pulse to Tone Conversion
It is possible for an extension user to temporarily switch from Pulse mode to DTMF mode in order to access
special services such as computer-accessed long distance calling or voice mail services. To switch to
DTMF mode, wait for a preprogrammed time period (Default: 5 seconds) after the CO line is connected,
or press
. This feature works only on CO lines set to Pulse mode. DTMF mode cannot be changed to
Pulse mode.
•
It is possible to select a pulse rate for the CO line port which has been set to Pulse mode. There are two
pulse rates: Low (10 pps) and High (20 pps).
•
It is possible to assign the minimum duration of the DTMF signal sent to the CO line port which has been
set to DTMF mode.
PC Programming Manual References
3.28 [1-1] Slot—Port Property - LCO Port
→
Dialing Mode
→
DTMF Width
→
Pulse Speed
3.34 [1-1] Slot—Port Property - T1 Port
→
CO Dial Mode
→
DTMF Width
→
CO Pulse Speed
PT Programming Manual References
[410] LCOT Dialing Mode
[411] LCOT Pulse Rate
[412] LCOT DTMF Minimum Duration
4.1.4 Dial Tone
Description
The following dial tones inform extension users about features activated on their extensions:
Each dial tone type has two frequencies, such as dial tone 1A and dial tone 1B.
Type
Tone 1A/1B
Document Version 2009-12
Numbers dialed by an extension user are transmitted to the CO line
using analog tones.
Numbers dialed by an extension user are transmitted to the CO line
using analog pulses.
A normal dial tone is heard when:
a.
No features listed for dial tones 2 through 4 has been set, or
b.
Automatic Route Selection (ARS) is used.
Description
Description
4.1.4 Dial Tone
Feature Manual
67