3-12 DHS-E Technical Specification Tables
Table 3-9: Audible Signals
Signal Frequency Cadences
CO Line Ringing:
Scheme 0
Scheme 1
Scheme 2
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLT
N/A
N/A
N/A
SLT bell
300ms ON, 400ms OFF, 300ms ON, 4 seconds OFF
1 second ON, 3 seconds OFF
1 second ON, 3 seconds OFF
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Intercom Ringing:
Scheme 0
Scheme 1
Scheme 2
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLT
N/A
N/A
N/A
SLT bell
1 second ON, 3 seconds OFF
1 second ON, 3 seconds OFF
300ms ON, 400ms OFF, 300ms ON, 4 seconds OFF
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Message Wait
Callback
Follows ring cadence of Ring Scheme selected