![Cisco Unified SIP Phone 3900 Series](/images/voice/cisco/cisco-ip-phones/cisco-unified-sip-phone-3900-series/cisco-unified-sip-phone-3900-series.jpg)
CISCO
Unified SIP Phone 3900 Series
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.
![Easy-to-use IP phone](/images/voice/cisco/cisco-ip-phones/cisco-unified-sip-phone-3900-series/cisco-unified-sip-phone-3900-series-2.jpg)
Easy-to-Use IP Phone
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.
![Multipurpose](/images/voice/cisco/cisco-ip-phones/cisco-unified-sip-phone-3900-series/cisco-unified-sip-phone-3900-series-3.jpg)
Multipurpose
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.