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TelTel is the leading provider of Internet telephony services based on the open Session Initiation Protocol (SIP). Instead of relying on proprietary protocols for Voice over IP (VoIP) communications, TelTel believes in using open standards for its underlying messaging protocol. The use of SIP, which is fast becoming the industry standard, means TelTel technology can interoperate with virtually all SIP providers and SIP-based devices. Moreover, this open approach allows SIP-compliant solution providers to tap into the TelTel platform in order to deliver a wide array of global Internet telephony solutions and value-added services. And by offering services such as conferencing, services for hardware devices, and audio entertainment programs, solution providers can boost their market share and increase revenues.