ChinaRoby Co. China

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ChinaRoby Co.
Ruiyage,Ruiheyuan,Yitian Rd
Shenzhen
Guangdong ,518048
China

Phone: 8675583843088
Phone: 8675583843088
Site: http://www.chinaroby.com

Contact Person

Gery Jiao / Sales manager
Phone: 8675583843088
Phone: 8675583843088

Hardware
International VoIP Wholesale Provider
Internet Telephony Service Provider
Internet VoIP and Video Conferencing Service Provider

IP devices
Phone To PC
Phone To Phone
SIP Softswitch & CPE
SIP VoIP Gateway
Voice and Video Conferencing

Audiocodes
Cisco Systems
Huawei VoIP Products

IP Phone

Compass International Co., Ltd

1st VoIP Technology Co., Ltd.

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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Future B Telecommunications

Our goal is to make available cost effective means of telecommunication to people and enterprises throughout our regions: Europe, Africa, Middle East , the Balkans and Russia/CIS by providing: