The Cisco Unified IP Phone 500 Series consists of affordable, entry-level IP phones designed for use with the Cisco Unified Communications 300 Series, the Cisco Unified Communications 500 Series for Small Business or SIP, including Asterisk. These phones:
Are an excellent choice for businesses making the transition from traditional digital or hybrid key systems and private branch exchanges (PBXs) to a solution designed for the Cisco Unified Communications 500 Series
Can be used in cubicles, retail settings, classrooms, break rooms, lobbies, and manufacturing areas
Are optimized to replace traditional voice systems, or to layer a next-generation voice solution into a Category 5 wired environment
The Cisco Unified IP Phone 500 Series can also be used with unified communications productivity-enhancing features such as directory search and VoiceView Express.
The Cisco Unified IP Phone portfolio provides:
IP phones with color LCD displays and dynamic soft keys for call features and functions
Power efficiency features such as LCD shutoff
Dual 10/100 Ethernet and Power Over Ethernet (802.3af) support on all models
Cisco HD Voice (G.722) on all models
Full-featured phones that support shared line appearance, call park, paging, and intercom
Security capabilities that allow password-protected configuration changes through the phone