telecommunications services in the field of facilitating communication network services, namely, local and long distance telephone services, online facsimile transmission and receive services, unified messaging services, voice mail services, providing telephone features in the nature of call processing, providing telephone features in the nature of call waiting, voice over Internet protocol (VOIP) services, mobile, web-based, and fixed-line telephone communication services, and facsimile transmission and retrieval services; mobile, web-based, VoIP and fixed-line telephone communication services with various telephone features, namely, dedicated toll-free, vanity, or local numbers, voicemail, multiple mailbox extensions, telephone message notification, fax capabilities, detailed call reports, call waiting, call identification, call forwarding, find-me/follow-me, and message waiting; SIP trunking service in the nature of voice over Internet protocol (VOIP) service, hosted web-based voice and broadband communication services, hosted web-based PBX service, hosted cloud-based PBX services, enterprise voicemail and instant messaging services, business continuity telecommunications service in the nature of failsafe and back up measures that decrease likelihood of interruption of telecommunications services to business customers, user device presence information services in the nature of identifying and providing the location of a mobile user device, providing voice communication services via the Internet; device mobility features and services, namely, hosted PBX services in the nature of facilitating PBX calls to and from a device running software phone applications; voicemail-to-email services in the nature of transmitting voicemails to emails, voice and video conferencing services, desktop and data sharing services in the nature of electronic data transmission, web meeting services in the nature of video conferencing provided via the Internet, and transmission of messages across multiple devices and media types using call control and speech recognition technology