Skip to main content

Digital Phones and Features

Information about digital telephone features and what phones are available.


Digital voice service offers multi-line service and a wide range of basic and advanced telephone features and options that come either standard or available upon request. It is particularly suited to environments with complex telephone needs or a high volume of telephone traffic, such as reception areas. Information about rates

Features on Digital Phones

Standard features

These features are available on all digital phones at no extra cost.

Programmable features

These features are available only if requested, for a small service fee.

Phone Options

All locations except VoIP buildings

Digital Set Model 2410 with 12 buttons and Call Display

2410 model  PDF icon2410 Instruction Booklet

Digital Set Model 2420 with 24 buttons and Call Display

2420 model  PDF icon2420 Instruction Booklet

Expansion Module EU24 with 24 buttons (for use with 2420 only)

EU24 Module

Digital Set Model 6416D with 16 buttons and Call Display

6416D model  PDF icon6400 Instruction Booklet

Digital Set Model 6424D with 24 buttons and Call Display

6424d-l  PDF icon6400 Instruction Booklet

Digital Expansion Module XM24 with 24 buttons 

XM24-l For use with 6416D and 6424D only.

Vet School Only

Digital Set Model 8410 with 10 buttons

8410B   PDF icon8410 Guide from AT&T

Digital Set Model 8410 with 10 buttons and Call Display

8410D  PDF icon8410 Guide from AT&T

Some locations: IP

IP Set Model 4610sw with 12 buttons and Call Display

4610sw  PDF icon4610 & 4620 VoIP Instruction Booklet

IP Set Model 4620sw with 24 buttons and Call Display

4620sw  PDF icon4610 & 4620 VoIP Instruction Booklet

Expansion Module EU24 with 24 buttons 

EU24Module For use with 4620 only.

Some locations: In use, but not available for new installations

Digital Set Model 7406, with 30 buttons

7406  PDF icon7406 Guide from AT&T

Digital Set Model 7406, with 30 buttons and Call Display

7406 display  PDF icon7406 Guide from AT&T

Digital Set Model 7444, with 49 buttons and Call Display

7444  PDF icon7444 User's Guide from AT&T

Digital Set Model 7403, with 16 buttons

7403  (no longer available, replaced by the 7406 model)

Digital Set Model 7405, with 40 buttons

7405  (no longer offered in new locations; current users are encouraged to upgrade to another model if possible)

Was this page helpful?

Your feedback helps improve the site.

Comments?