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Specifications
Release 3.3 9
Specifications
Technical Information
Technical Characteristics
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).
DTMF Signaling
Input Signaling: The system is capable of accepting and repeating the standard DTMF tones
as specified in EIA/TIA 464-C.
Output Signaling: The Mitel Networks 3300 ICP meets the output signaling requirements as
specified in EIA/TIA 464-C.
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. Upper and lower detection
thresholds for switchhook flash are programmable between 60 ms and 500 ms, and
between 60 ms and 1500 ms respectively.
- use the calibrated flash button (for equipped telephones)
DTMF Output Signaling as specified by EIA/TIA 464-C
frequency deviation 1 percent
tone duration greater than 40 ms
interdigit time greater than 40 ms
level, low group greater than -10 dbm
level, high group greater than -8 dbm
level, low group and high group combined less than +2 db
level, third greater than 40 db
frequency below dtmf signal
twist less than 4 db