Check Handset Transmission; Check Handset Reception; Check Caller Id - Panasonic KX-TCD220SLT Service Manual

14.4. Check Handset Transmission

Cross Reference:
SIGNAL ROUTE (P.77)

14.5. Check Handset Reception

Cross Reference:
HOW TO CHECK THE HANDSET SPEAKER OR RECEIVER (P.69).
SIGNAL ROUTE (P.77)

14.6. Check Caller ID

Cross Reference:
SIGNAL ROUTE (P.77)
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KX-TCD220SLT / KX-TCA122EXT / KX-TCA121EXT