Panasonic DP-135FP - Manual (Page 97)

MAINTENANCE
97
MA
INTE
NA
NCE
Checking the Telephone Line
If you do not hear a dial tone when the key is pressed, nor through the telephone connected to
the machine or when the telephone does not ring (No automatic receive).
1 Unplug the Telephone Line Cable from the
telephone jack that was supplied by the
telephone company.
2 Plug a different regular telephone into the
same telephone jack.
3 Check for dial tone through the handset. If
there is still no dial tone, report it to your local
telephone company.
or
Call from another telephone to this number. If
the telephone does not ring, report it to your
local telephone company.
MONITOR
Checking the Telephone Line