Troubleshooting

Appendix B

My cordless	•	Make sure that the ringer is not turned off.
handset does		Refer to the section(s) on ringer selection
not ring when I		in the manual provided with your TL92278/
receive a call.		TL92328/TL92378 telephone.
	•	Make sure the telephone line cord is
		plugged securely into the telephone base
		and the telephone jack. Make sure the
		power cord is securely plugged in.
	•	The cordless handset may be too far from
		the telephone base.
	•	Charge the battery in the cordless handset
		for at least 16 hours. For optimum daily
		performance, return the cordless handset
		to its base when not in use.
	•	You may have too many extension phones
		on your telephone line to allow all of them
		to ring simultaneously. Try unplugging
		some of the other phones.
	•	The layout of your home or office might
		be limiting the operating range. Try moving
		the telephone base to another location,
		preferably on an upper floor.
	•	If the other phones in your home are
		having the same problem, the problem is in
		your wiring or local service. Contact your
		local telephone company (charges may
		apply).
	•	Test a working phone at the phone jack. If
		another phone has the same problem, the
		problem is the phone jack. Contact your
		local telephone company (charges may
		apply).

TL90078 specifications

The AT&T TL90078 is a highly acclaimed IP Phone that caters to the needs of modern businesses seeking reliable communication solutions. Designed with a focus on versatile functionality and ease of use, the TL90078 offers a range of features that enhance productivity in a corporate environment.

One of the standout characteristics of the TL90078 is its user-friendly interface. The IP phone is equipped with a large backlit display that allows for clear visibility, making it easier to navigate through menus, access contacts, and manage calls. This intuitive design aids users in efficiently handling their communication needs without unnecessary complications.

The TL90078 supports multiple line appearances, enabling users to manage several calls simultaneously. This feature is particularly valuable in busy office settings where efficient call management is crucial. Furthermore, the phone is compatible with both standard and high-definition audio, ensuring that conversations are crisp, clear, and free from disruptions.

In terms of connectivity, the TL90078 is designed to integrate seamlessly into existing VoIP infrastructures. It supports both Power over Ethernet (PoE) and traditional power options, providing flexibility in installation. This versatility means businesses can deploy the phone in various office layouts without the need for extensive wiring or modifications.

The device also incorporates advanced call management features, such as call forwarding, call waiting, and conference calling, allowing teams to collaborate effortlessly. The integration of productivity-enhancing applications further transforms the TL90078 into a powerful communication tool, with options for voicemail, speed dialing, and directory access directly from the handset.

Security is another critical aspect of the TL90078. The phone employs encryption protocols to protect sensitive communications, ensuring that businesses can operate securely without compromising on their data integrity.

In summary, the AT&T TL90078 is a robust IP phone that combines a user-friendly design with advanced features and technologies tailored for professional use. Its versatility, audio quality, and security capabilities make it a valuable asset for businesses aiming to enhance their communication systems. As organizations continue to adapt to evolving communication needs, the TL90078 stands out as a reliable choice in the competitive landscape of VoIP solutions.