Installation guide

TROUBLE ON ONE TELEPHONE
Ringing Symptoms
A line rings but no caller is on the line
A1-3
10-button voice terminals exhibit peculiar ringing and/or extra lights are lit
A1-3
Voice terminal rings constantly, whether on or off hook
A1-4
Voice terminal does not ring when a call is transferred to it
A1-5
Off-premises telephone rings after user hangs up
A1-5
Voice terminal does not ring on incoming outside calls A1-6
NOTE:
Use this section only if you have isolated the problem to one voice terminal or
telephone (in other words, it is not a systemwide problem).
A1-1