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2
7400 Series Digital
Telephones
DEFINITY ProLogix Solutions Release 2 Overview 555-235-100
The 6424D+M allows you to install a 100A Tip/Ring module, providing a
connection between the telephone and such analog adjuncts as modems, fax
machines, analog conference-quality speakerphones, answering machines, and
TDD machines commonly used by the hearing impaired. The 6424D+M has a
built-in 2-way speakerphone and can be wall mounted. A 24-button expansion
module can be added to provide 24 additional auxiliary buttons. (The 24-button
expansion module requires power from the station or the closet.) The 6424D+M
also has a built-in headset jack.
Requirements
The 6400 Series telephones are compatible with the following 2-wire DCP circuit
packs:
TN 2181 (16-port circuit pack)
•
TN 2224 (24-port circuit pack)
•
TN 2214 (international 24-port circuit pack)
•
The 7400 Series telephones are 4-wire, multiline, DCP telephones. Although these
telephones are supported, they cannot take advantage of the latest set of DEFINITY
features. These telephones are not currently sold as new.
Telephones for the Global Marketplace
Issue 2 June 1999 2-8
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