User manual
2  Telephones for the Global Marketplace
DEFINITY ProLogix Solutions Release 2 Overview 
555-235-100 Issue 2 June 1999 2-7
The 6416D+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 6416D+M has a 
built-in 2-way speakerphone and can be wall mounted. The 6416D+M also has a 
built-in headset jack.
• 6424D+ telephone
The 6424D+ telephone is a digital, multiline DCP telephone that has 24 call 
appearance/feature buttons and a 2-line by 24-character display. This telephone is 
designed for the busy executive or executive assistant who requires extensive call 
handling and call coverage flexibility. The 6424D+ has 12 additional features 
that are accessible via the 2-line by 24-character display and are selected by the 
four display-associated soft keys. The 6424D+ 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.)
• 6424D+M telephone
The 6424D+M telephone is a digital, multiline DCP telephone that has 24 call 
appearance/feature buttons and a 2-line by 24-character display. This telephone is 
designed for the busy executive or executive assistant who requires extensive call 
handling and call coverage flexibility. The 6424D+M has 12 additional features 
that are accessible via the 2-line by 24-character display and are selected by the 
four display-associated soft keys. 










