1.5 Making Call Features44 Feature Guide1.5.2.4 Dial Type SelectionDescriptionThe dialling mode can be selected for each outside (CO) line through system programming ( Dial Mode[401]) regardless of the originating extension (dependent on the contract with the telephone company).Conditions• Automatic Configuration for Outside (CO) Line TypeThe dialling mode of connected outside (CO) lines is automatically assigned after restarting the PBXusing the System Clear Switch or through system programming ( System Data Clear [999]). Nosystem programming in Dial Mode [401] and Pulse Speed [402] is required unless the dialling mode ofthe connected outside (CO) lines is Call Blocking. If your telephone company can receive both DTMFand Pulse signals, the PBX selects an outside (CO) line type according to the following priority:DTMF Pulse (High) Pulse (Low)• Pulse to Tone ConversionIt is possible for an extension user to temporarily switch from Pulse mode to DTMF mode in order toaccess special services such as computer-accessed long-distance calling or voice mail services. Toswitch to DTMF mode, wait for a preprogrammed time period after the outside (CO) line is connected,or press the " #" key. This feature functions only on outside (CO) lines set to "Pulse" or "Call Block"mode ( Dial Mode [401]). DTMF mode cannot be changed to Pulse mode.• The pulse rate for outside (CO) lines that have been set to "Pulse" or "Call Block" mode ( PulseSpeed [402]) should be selected depending on your telephone company or a host PBX. There are 2pulse rates: Low (10 pps) and High (20 pps).• It is possible to assign the minimum duration of the DTMF signal sent to outside (CO) lines that havebeen set to "DTMF" mode ( DTMF Time [210]).• It is programmable whether DTMF dialling is sent to the telephone company when an extension userredials after changing from Pulse mode to DTMF mode by pressing the " #" key ( Redialling afterPulse to Tone Conversion [119]).User Manual References1.4.9 Changing the Dialling Mode (Pulse to Tone Conversion)Mode DescriptionDTMF (Dual Tone Multi-Frequency)Numbers dialled by an extension user are transmitted to the outside (CO)line using tones. If this PBX is installed behind an existing host PBX,select this mode as necessary. If your telephone company or a host PBXcan receive both DTMF and Pulse signals but the contract specifiesDTMF lines, select this mode.Pulse (Rotary) Numbers dialled by an extension user are transmitted to the outside (CO)line using pulses.Call Blocking If your telephone company or a host PBX can receive both DTMF andPulse signals but the contract specifies Pulse lines, select this mode.When dialling with a touch-tone telephone, only Pulse signals will be sentto the telephone company.
