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D
3
Features
3-58
Features
D
ial Type Selection
Description
Allows you to select the desired dialing mode for each outside line
regardless of originating call extension (rotary or tone).
There are three dialing modes available:
DTMF (Dual Tone Multi-Frequency) Mode
The dialing signal from an extension, either tone or rotary, is
converted to tone dialing. DTMF signals are transmitted to
the outside line.
Pulse Dial (Rotary) Mode
The dialing signal from an extension, either tone or rotary, is
converted to rotary dialing. Rotary pulses are transmitted to
the outside line.
Call Blocking Mode
Set this mode on outside lines that can receive both tone and
rotary, but under contract with the Central Office for rotary
only. When dialing to a line using a touch-tone telephone,
only rotary is sent to the Central Office.
Conditions
• It is possible for the extension user to temporarily convert the pre-
assigned rotary dialing mode to DTMF mode (Pulse to Tone
Conversion). DTMF mode cannot be changed to rotary.
• In case an outside line can receive both DTMF and pulse signals and is
contracted for DTMF with a Central Office, DTMF mode should be
selected for the line. If it is contracted for rotary mode, Call Blocking
mode should be selected for the line.
• If a line is assigned Pulse Dial mode, select an appropriate pulse speed,
pulse break ratio, and inter-digit pause for the line, if necessary. If a
line is assigned DTMF, select an appropriate DTMF duration for the
line, if necessary.
• After a held call is retrieved, the dial mode goes back to the one
originally programmed on the outside line.
Programming References
Section 4, System Programming
[402] Dial Mode Selection
[403] Pulse Speed Selection
[404] DTMF Time
[990] System Additional Information, Fields (17), (21)
Feature References
Section 3, Features
End-to-End DTMF Signaling
Pulse to Tone Conversion
(Tone Through)
Operation References
Not applicable.