China skyline China

This is Helen Hu from China Skyline which in the field of VoIP products, GSM Modem, sim bank and wifi phone. And also deal in routes .Urgent need non cli 92 pak direct route who has voip gateway .

This is Helen Hu from China Skyline which in the field of VoIP products, GSM Modem, sim bank and wifi phone. And also deal in routes .Urgent need non cli 92 pak direct route who has voip gateway .
All support for you do voip business , we can provide you the device of goip gateway , sim bank ; soft switch ; server . And technology support in free and forever .
Please contact me now .
skype : helen.hu809
email: helen@chinatyh.com.cn

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Rating: 2/2.50/5

General office

China skyline
Lipu Street,Dafapu,Community,Bantian Street,Longgang District,Shenzhen City.china
Shenzhen
Guangdong ,518000
China

Phone: 008613349926491
Phone: 86-755-82435955
Site: http://www.chinaskyline.net

Contact Person

helen hu / manager
Phone: 008613349926491
Phone: 86-755-82435955

Not data

TeleAlpha

Fanvil 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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SWISS VoIP

The worlds’ first virtually free VOIP platform to offer free and ultra-low cost international phone services with no contract and no monthly fee.Whether you are sitting down for a morning espresso in Hong Kong, a lunch date in Zurich or even dinner in Los Angeles, SWISS VoIP offers free calling; anytime, anywhere.