The Cisco Small Business SPA 300 Series is designed For 3rd Party Call Controllers and Cisco Small Business Pro Unified Communications 320 and 500.
- Wideband audio for exceptional voice clarity and enhanced speaker quality
- Monochrome display (SPA303) for ease of use, aesthetics, and on-screen applications
- Support for hosted IP telephony environments or an IP private branch exchange (PBX)
- Easy installation and highly secure remote provisioning, and web-based configuration
These phones also support both:
- Session Initiation Protocol (SIP) for Cisco SPA9000 Voice System, open-source, and hosted telephony solutions
- Smart Phone Control Protocol (SPCP) for Cisco Unified Communications 500 Series for Small Business