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86 Voice Gateways System Manual
Appendix B - Default Telephony Parameters
Table B-1: Default Telephony Parameters
Parameter Definition Default
Normal Ringing Signal The signal that end user will
hear from the telephone set
when a call is received
Cadence: 1 second on, 4
second off
Duration: 180 seconds
Frequency: 25 Hz
Ringing Tone The tone that sounds on the
telephone set when ringing on
the other side.
Cadence: 1 second on, 5
second off
Duration: Not limited
Frequency: 425 Hz
Level: -10 dBmO
Dial Tone The tone that the call originator
hears in the handset before
dialing the destination telephone
number.
Cadence: Continuous
Duration: Not limited
Frequency: 425 Hz
Level: -5 dBmO
Busy Tone The tone that the end user that
originates a call hears when the
destination telephone line is
busy.
Cadence: 0.25 second on, 0.25
second off
Duration: Not limited
Frequency: 425 Hz
Level: -10 dBmO
Network Busy Tone The tone that the end user that
originates a call will hear when
the network is congested.
Cadence: 0.25 second on, 0.75
second off
Duration: Not limited
Frequency: 425 Hz
Level: -10 dBmO
Call Waiting Tone The tone that the end user that
originates the call hears when
there is a second incoming call
during the original call session.
Cadence: 0.2 second on, 0.5
second off, 0.2 seconds on
Duration: One On-Off-On cycle
Frequency: 425 Hz
Level: -10 dBmO