Note: The Cisco CP-521= does not include an AC power adapter if you need to power the phone via AC power you will need to purchase the Linksys PA100 power adapter. Also, the Cisco CP-512SG is deigned to only be used with the Cisco UC500 / UC520 series phone system.

Cisco IP CP-521SG= VoIP phones only support the SCCP protocol at this time.

The Cisco Unified IP Phones 500 Series is a group of affordable, entry-level IP phones designed for use with Cisco's Unified Communications 500 Series for Small Business.

The Cisco CP-521SG= phones are an excellent choice for customers undergoing the transition from traditional digital or hybrid key systems (KTS) and PBXs to a system based on the Cisco Unified Communication 500 Series. The Cisco Unified IP Phones 500 Series can easily be integrated into the Cisco Smart Business Communications System. They can be used in cubicles, retail settings, classrooms, breakrooms, lobbies, and manufacturing areas.

These phones are optimized to replace traditional voice systems, or to layer a next-generation voice solution into a Category 5 (CAT5) wired environment. The Cisco Unified IP Phone 521G is a single-line IP phone with two call line appearances. Four dynamic soft keys on each phone guide you through core business features and functions, while a backlit pixel-based display combines intuitive features, calling information, and device system information to give you information at your fingertips.

Cisco UC520 (Unified Communications 500 Series VoIP Phones)

Reasons to buy from IP Phone Warehouse:

Great Prices - At IP Phone Warehouse our goal is to offer you great prices on VoIP products. We strive to get you the best pricing on your VoIP equipment no matter the size of the purchase. At IP Phone Warehouse we feel that everyone deserves a great price and exceptional service.

Experienced Technical Staff - IP Phone Warehouse has a staff of experienced VoIP specialists. Our staff is knowledgeable and trained to support you with your VoIP implementation. We also offer phone and remote technical assistance. For more info on our technical support options click here.

Safe Place to Shop Online - IP Phone Warehouse offers a safe shopping environment. IP Phone Warehouse uses industry standard 128-bit SSL encryption to ensure your data remains safe. Additionally, IP Phone Warehouse is HACKER SAFE™ certified.

Flexible Payment Options - IP Phone Warehouse accepts major credit cards including: Visa, MasterCard, American Express, and Discover. IP Phone Warehouse also accepts Google Checkout payments. In addition to credit cards, IP Phone Warehouse accepts checks by mail and wire transfers.

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