3377 Phone Cards, Inc. United States
General office
3377 Phone Cards, Inc.
P. O. Box 350268
Brooklyn
NY ,11235
United States
Phone: +1 718-743-3377
Contact Person
Leo Dess / President
Phone: +1 718-743-3377
3377 Phone Cards, Inc.
P. O. Box 350268
Brooklyn
NY ,11235
United States
Phone: +1 718-743-3377
Contact Person
Leo Dess / President
Phone: +1 718-743-3377
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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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