With universal compatibility and "best in class" performance, every Teo ISDN phone provides easy installation, automatic setup, and user friendly operation. Just select the interface type, style, and number of buttons that best meets your needs for both commercial and government applications.

Teo also manufactures a complete line of NT1 ISDN Network Terminations for connecting digital voice and data equipment to the ISDN network. NT1 models include desktop, wall mount, and open card versions, with several powering options. Racks and battery backup are available for multiline configurations.

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