m and adjunct services including contact centers. CPaaS systems, in addition to providing IP voice features, add customized solutions to complex communications issues between companies and their customers. Hosted IP PBXs-Providers Managing Software and Gateways Hosted systems have the same features as on-site IP PBXs, but the server software and gateway equipment are hosted at a provider's site. This is an increasingly popular method of maintaining telephone systems. Rather than use capital to pay for a telephone system, organizations pay ongoing subscription fees based on the number of employees and the addition of value-added applications. With hosting, vendors easily add new features to their server without customers needing to call their supplier to reprogram their server software. Customers do have an administrative screen where they can add and delete staff names and specify classes of service-restrictions on where staff can call or services www.TechnicalPDF.com they have permission to access. Customers that use a hosted IP PBX service are connected to their system via high-speed broadband connections. These network connections also transmit busy signals and ring tones between the provider and the customer's handset. Hosted VoIP systems are attractive to smaller and medium-sized companies that might not have in-house expertise to manage IP telephony and applications such as collaboration, contact centers, or unified communications. These companies might also be uncertain about their future growth. In addition, hosted systems provide disaster recovery and portability. If the customer loses electricity or their LAN crashes, they can access their telephony functions remotely. Large companies with specialized needs, such as hospitals and financial organizations, may not choose to use a hosted solution, as it might not fit their special requirements for high-level security and privacy or other specialized features. Hosted systems are designed to provide the same features to all customers. Most do encrypt broadba