AT&T E2903B user manual Disconnect the telephone base from the modular jack

Appendix

Troubleshooting

	•	Disconnect the telephone base from the modular jack and
		plug in a corded telephone. If calls are still not clear, the
		problem is probably in the wiring or local service. Contact
		your local service company (charges may apply).
	•	Other cordless telephones and 802.11 wireless routers that
		are used for home computer networks both use internal
		radios to communicate. The radios may interfere with one
		another. You can improve the performance of your cordless
		telephones and your router by:
		a. Positioning your new telephone as far away from any
		other already installed cordless telephone in your home
		as possible. This will hinder the interference of the two
		systems with one another.
		b. Positioning your telephone base as far as possible from
		your router, computer or any other computer devices.
		c. Selecting channels 4 through 10 for your router (refer to
		your router’s user manual for more information).
	•	Do you have DSL service? If yes, you need to have a DSL
		filter installed at every telephone jack that has a telephone
		connected to it. Contact your DSL service provider for filter
		information
I hear other calls	•	Disconnect the telephone base from the telephone jack.
when using the		Plug in a different telephone. If you still hear other calls,
telephone.		the problem is probably in the wiring or local service. Call
		your local telephone company.
My caller ID	•	Caller ID is a subscription service. You must subscribe to
features are not		this service from your local telephone company for this fea-
working properly.		ture to work on your telephone.
	•	The caller may not be calling from an area which supports
		caller ID.
	•	Both you and the caller’s telephone companies must use
		equipment which are compatible with caller ID service.
	•	If you subscribe to DSL service, install a noise filter to
		the telephone line between the telephone base and the
		telephone line jack. Contact your DSL service provider
		for filter information.

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