Cisco Unified SIP Phone 3900 Series

Get Basic IP Communications to Fit Your Budget

Replace traditional analog and digital phones with cost-effective VoIP communications. The Cisco Unified SIP Phone 3900 Series combines a simple, easy-to-use, ergonomic design with basic communications features.

Features and Capabilities

These phones are an ideal, earth-friendly solution to meet your communications needs in occasional use environments such as:

  • General office common areas such as lobbies, cafeterias, hallways
  • Retail sites
  • Manufacturing facilities
  • Classrooms in education

The Cisco Unified SIP Phone 3900 Series can be placed on a desktop or wall-mounted.

Specifications at a Glance


128 x 32 pixel, monochrome, graphical, non-backlit

Integrated Switch


Number of Line Keys




Fixed Feature Keys


IEEE Power over Ethernet Classification

Class 1

Boost Team Performance

Boost Team Performance

Increase the value of IT investments with Cisco IP Phones. (PDF - 3 MB)

Additional Resources

Let Us Help