Appendix A : Signaling, Tones, And Transmission; Signaling And Supervisory Tones; Time-Out Information - Mitel 3300 ICP Hardware Technical Reference Manual

C 5
HAPTER
Appendix A : Signaling, Tones, and Trans-
mission

Signaling and Supervisory Tones

The standard range of programmed tones are composed of
12 DTMF sets of tones
•
1 set of tones that form part of the call progress tone plan
•
1 test of 1004 Hz (digital milliwatt).
•

Time-Out Information

The system is capable of responding to or providing the following supervisory conditions:
Switchhook flashes having a duration of between 160 ms and 1500 ms (as programmed) to activate
•
Transfer/Consultation/Hold/Add-On features.
Call transfer dial tone can be obtained by generating a calibrated flash. This method is recognized
•
internationally and is generated in one of three ways:
use a flash-hook for telephones connected to ONS circuits
–
use the calibrated flash button (for equipped telephones)
–
dial the digit '1' on an ordinary rotary telephone
–
Station switchhook flashes of less than the maximum programmed switchhook flash time will not be
•
repeated towards the central office.
An open Tip lead condition of 500 ms (optional 100 ms) or longer duration on a CO trunk will release
•
the system connection.
Momentary open loop conditions of up to 350 ms (optional 100 ms) generated by the central office on
•
outgoing system calls will not release calls.
Station on-hook conditions will release a trunk connection after the selected maximum time.
•
Time-Out Information (Sheet 1 of 2)
Table 5.1:
Feature
No Answer Recall Timer
Time-Out Period
0 - 125 s
S
IGNALING AND
A A : S , T
PPENDIX IGNALING
Description
If there is no answer at the
extension after the time-out
expires, it will ring back at the
attendant console or transfer
station.
S T
UPERVISORY ONES
, T
ONES AND RANSMISSION
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