Using the OSI network layer model as a basis, here’s how to derive a simplified three-layer model for SIP-based VoIP and corresponding threats and defenses. The resurgence of interest in VoIP to provide telephone services worldwide is often credited to the use of session initiation protocol (SIP) for signaling. Both residential and enterprise VoIP services are widely deployed. IP telephony may be used either to replace the primary telephone service or to provide additional telephone […]
IP-based
3 posts
IP telephony encompasses a set of technologies enabling voice, data and video over existing IP-based LANS, WANs and the internet. Using voice over IP (VoIP) as the enabling technology to transport phone calls allows firms to eliminate legacy circuit-switched (TDM) systems and lower equipment costs by converging applications onto a single infrastructure, while browser-based interfaces can simplify system management. Software upgrades are also much easier to implement, as are adds, moves and changes (AMCs). At […]
Contact centers that want to easily interoperate with other vendors, partners, and worksites must standardize with Session Initial Protocol (SIP) over their Voice-over-IP (VoIP) communications systems. Once an organization’s VoIP is SIP-enabled, they open themselves up to virtualizing multiple operations, increasing flexibility, reducing costs, and improving overall efficiency across an endless array of communications options. Here’s how organizations are improving customer service with SIP-enabled VoIP communications: Virtualize. An all IP-based solution doesn’t require PBX hardware […]