Replace traditional analog and digital phones with cost-effective VoIP communications. The Cisco Unified SIP Phone 3900 series combines an easy-to-use ergonomic design with basic communications features.
The Cisco Unified SIP Phone 3900 series is a simple, eco-friendly solution for your communications needs. Place the phones on a desktop or mount them on a wall.
The 3900 Series phones are a good fit for occasional-use environments like office lobbies, cafeterias, and hallways; retail sites; manufacturing facilities; and school classrooms.
Get affordable, basic VoIP for occasional-use business needs. (PDF - 3 MB)