Getting started

Quick reference guide

CHARGE indicator

On when the handset is charging in the telephone base or charger.

DIR / CID

Press DIR to display directory entries.

Press to scroll up while in menus.

While entering names or numbers, press to move the cursor to the right.

Press to increase the listening volume when on a call.

Press CID to display caller ID history.

Press to scroll down while in menus.

While entering names or numbers, press to move the cursor to the left.

Press to decrease the listening volume when on a call.

MENU/SELECT

Press to display the menu.

While in the menu, press to select an item or save an entry or setting.

DELETE/MUTE

During a call, press to mute microphone.

While reviewing the caller ID history, press to delete an individual entry, or press and hold to clear the caller ID history. While predialing, press to delete digits.

OFF/CLEAR

During a HOME or CELLULAR line call, press to end the call. While in a menu, press to cancel an operation, back up to the previous menu, or exit the menu display.

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AT&T TL90078 user manual Quick reference guide, Dir / Cid

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.