AT&T CL2939 user manual Properly see Telephone installation on

Appendix

Troubleshooting

	•	Make sure to set the DIAL MODE to the correct
		setting (pulse dialing or tone dialing) for the
		service in your area (see Feature summary on
		page 15).
	•	If any of your other telephones are having the
		same problem, the problem is in the wiring
		or telephone service. Contact your telephone
		service provider (charges may apply).
	•	If you are using the speakerphone, eliminate
		any background noise. Noise from a television,
		radio, or other appliances might cause the
		telephone to not dial out properly. If you
		cannot eliminate the background noise, first try
		muting the telephone before dialing, or dialing
		from another room in your home with less
		background noise.
The telephone does not	•	Make sure the ringer is on (see Ringer volume
ring when there is an		on page 13).
incoming call.	•	Make sure the telephone line cord is plugged
		in properly (see Telephone installation on
		page 8).
	•	There might be too many extension telephones
		on the telephone line to allow all of them
		to ring simultaneously. Try unplugging one
		telephone at a time until the telephones start
		ringing.
	•	Test a working telephone at the same
		telephone jack. If another telephone has the
		same problem, the problem is in the telephone
		jack. Contact your telephone service provider
		(charges may apply).
	•	The telephone line cord might be
		malfunctioning. Try installing a new telephone
		line cord.

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