Spectralink IP-DECT Server 400 Base Unit The Spectralink IP-DECT Server 400 Base Unit (formerly sold as Polycom Kirk KWS 300 and fully interchangeable) supports 4-6 Spectralink 7520 cordless IP phone users with a maximum of four concurrent calls per base, making it an excellent choice for businesses across a wide range of industries. It’s a cost-effective system that allows use of the existing LAN network infrastructure and components. The Spectralink IP-DECT Server 400 Base Unit is deployed as a single-cell DECT solution that is installed directly on your Ethernet LAN and is managed as part of your company network. Up to 5 base units can be deployed in the same 100-200 foot radius work area. For use with Spectralink 7520 Cordless IP Phones, sold separately. Spectralink IP-DECT Server 400 Base Unit with AC adaptor Only $289.99 DECT equipment supplied by 8x8 has been pre-configured and updated with software to support 8x8 service and 8x8 secure service activation. Used or refurbished DECT equipment or customer supplied DECT equipment is currently not supported for DECT service. Please refer to compatibility guide.