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Comprehensive Interoperability and SIP Based Feature Set
Based on the SIP standard, the SPA 504 has been tested to ensure comprehensive interoperability with equipment from VoIP infrastructure leaders enabling service providers to quickly roll-out competitive, feature rich services to their customers. With hundreds of features and configurable sevice parameters, the SPA 504 addresses the requirements of traditional business users while leveraging the advantages of IP telephony. Features such as easy station moves, presence, and shared line appearances (across local and geographically dispersed locations) are just some of the many advantages of the SPA 504.
** Unless defective, this product is final sale once the packaging has been opened.
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