Frontier International Co., Ltd China

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General office

Frontier International Co., Ltd
Room 1712, Floor 17 Post Tower, No.2899 Zhangyang Road, Pudong Shanghai
Shanghai
,200136
China

Phone: +86 21 38710096
Site: http://www.frontiercorp.com.cn

Contact Person

Melody Guo / Sales
Phone: +86 21 38710096

Hardware
International VoIP Wholesale Provider
Internet Telephony Service Provider
Network Service Provider
SIP Billing
VoIP Billing Software Provider
Voip consulting

Billing Software
Collaboration
Installation and Support Services
IP devices
SIP Softswitch & CPE
SIP VoIP Gateway
System Integration

Dialogic Based

Billing system of own development
IP Phone

Flant Technologh Ltd.

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Providers in database: 6433

SDP Protocols Are Used To Transmit Media Session Information

In 1998, the Internet Engineering Task Force (IETF) published the specification for a Session Description Protocol or SDP as a format that describes parameters for streaming media. The original IETF Proposed Standard was updated in 2006 as RFC 4566. Although the SDP was created as a feature of Session Announcement Protocol (SAP), it can be used with Real-time Transport Protocol, Real-time Streaming Protocol (RTSP), and Session Initiation Protocol, as well as a standalone protocol. Parameter negotiation, session announcement and session invitation are included in the descriptive sessions from the SDP protocol. Rather than transmit data like other types of protocols, an SDP negotiates between media type endpoints, format and properties involved. A session begins when a connection is established, and the session is terminated only after every endpoint is no longer participating.

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