Epic Systems China

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General office

Epic Systems
beijingjingchaoyang
beijing
brijing ,100029
China

Phone: 86-010-58773390
Phone: 86-010-58772550
Site: http://www.dalutong.com

Contact Person

rebecca li / salea manager
Phone: 86-010-58773390
Phone: 13681111142

Hardware

IP devices
Termination

Audiocodes

Fanvil Electronics co., ltd

Gstar International(HK) Co., Ltd

Providers in database: 6433

VoIP Favors SIP

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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