Global Roaming Inc United States

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General office

Global Roaming Inc
20801 Biscayne Blvd
Miami
Florida ,33180
United States

Phone: +13052493121
Site: http://www.CelTrek.com

Internet Telephony Service Provider
Voip Termination ISP
Wireless Broadband

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Phone To Phone
Voice and Video Conferencing
Web Call
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Session Initiation Protocol (SIP) is a text-based standard put in place by the Internet Engineering Task Force (IETF) and is the primary protocol for Voice over Internet Protocol services. SIP is similar to a MGCP in that it's a signaling protocol that can create, maintain and terminate sessions in IP-based networks. These sessions include multimedia conferencing and two-way phone calls. SIP protocol can run on User Datagram Protocol (UDP), Stream Control Transmission Protocol (SCTP) and Transmission Control Protocol (TCP) because it was created to function independently from the underlying Transport Layer as an Application Layer.

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