AT&T CL4939 user manual Troubleshooting

Appendix

Troubleshooting

I cannot dial out.	•	First, try all suggestions in There is no dial tone on
		page 52.
	•	Make sure there is a dial tone before dialing. It
		is normal if the telephone takes a second or two
		before producing a dial tone. Wait an extra second
		before dialing.
	•	Check that all the telephones connected to the same
		telephone line are hung up.
	• Make sure to set the DIAL TYPE 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 local 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	•	Make sure the ringer is on (see Ringer volume on
not ring when there		page 14).
is an incoming call.	•	Make sure the telephone line cord and power adapter
		are plugged in properly (see Telephone installation
		on page 7).
	•	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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