AT&T CL2909 user manual Use

Appendix A

Troubleshooting

Caller ID isn’t	•	Caller ID is a subscription service. You must subscribe to
working.		this service from your telephone service provider for this
		feature to work on your telephone.
	•	If you subscribe to high-speed Internet service (digital
		subscriber line - DSL) through your telephone line, you
		must install a DSL filter between the telephone line
		cord and the telephone wall jack (page 5). The filter
		prevents noise and caller ID problems caused by DSL
		interference. Please contact your DSL service provider
		for more information about DSL filters.
	•	Your caller must be calling from an area that supports
		caller ID.
	•	Both your and your caller’s telephone service providers
		must use equipment that is compatible with caller ID.
No caller ID	•	Make sure your telephone service provider provides
information		caller ID information while you are on a call. This is
while on a call.		sometimes known as caller ID on call waiting or type 2
		caller ID.
	•	The telephone cannot display the information if another
		telephone on the same line is in use. Make sure all
		extensions are on hook.
Display dial	•	A home area code must be programmed. If you try to
		display dial before entering a home area code, you
does not work.
		will be prompted to enter the home area code. Enter
		the code or enter 000 if you dial 10 digit telephone
		numbers. Then press OPTIONS.
Screen	•	Make sure the telephone line cord is connected
incorrectly		properly.
displays LINE IN
USE.
No caller ID	•	The telephone cannot display or store the information
information for		while another telephone is using the same telephone
some calls.		line, whether this CL2909 telephone is being used or not.
I cannot edit a	•	Editing directory entries is not available. You need to
		create a new entry.
directory entry.

31