Canon TR8660 - Telephone Disconnects During a Call

Telephone Disconnects During a Call
Check
Is telephone line cable or telephone (or a peripheral device such as an external
telephone, an answering device, or a computer modem) connected correctly?
Check that the telephone line cable and the telephone (or a peripheral device such as an external telephone, an
answering device, or a computer modem) are connected correctly.
Connecting Telephone Line
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