3
Features
Conditions
Programming References
Feature References
Operation References
Pulse Dial (Rotary) Mode
The dialling signal from an extension, either in tone or pulse,
is converted to pulse dialling. Pulse signals are transmitted to
the CO line.
Call Blocking Mode
Set this mode on CO lines that can receive both tone and
pulse, but under contract with the Central Office for pulse
dialling only. When dialling to the line using an MF4
telephone, only pulse signals are sent to the Central Office.
• It is possible for the extension user to temporarily convert the pre-
assigned pulse dialling mode to DTMF mode (Pulse to Tone
Conversion). DTMF mode cannot be changed to pulse.
• In case a CO 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 pulse dialling 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 needed. If a line
is assigned DTMF, select an appropriate DTMF duration for the line, if
needed.
• After a held call is retrieved, the dial mode goes back to the one
originally programmed on the CO line.
Section 4, System Programming,
[402] Dial Mode Selection
[403] Pulse Speed Selection
[404] DTMF Time
[990] System Additional Information, Fields (17), (21), (49)
Section 3, Features,
End-to-End DTMF Signaling
(Tone Through)
Not applicable.
Pulse to Tone Conversion
Features
D
3-47