ATOP Tecnology Co., Ltd China
Founded in 2000, ATOP Technology is an innovative manufacturer based in Shenzhen, China, specializing in researching, designing and production of network communication products. As one of the early network equipments makers, ATOP Technology has undergone
Founded in 2000, ATOP Technology is an innovative manufacturer based in Shenzhen, China, specializing in researching, designing and production of network communication products. As one of the early network equipments makers, ATOP Technology has undergone many transformations in the fast-paced networking industry. Our strong R&D, efficient manufacturing, and strict quality management guarantee the performance and quality of ATOP products.
As a leading supplier and exporter, ATOP Technology is a technology-oriented company in China and have owned a lot of expertise on Ethernet, Multilayer Managed Switch, Fiber Optic Access, IP Technology., Our products are exported to dozens of countries and regions with high reputation in local market, especially in US, Mainland China and Taiwan ,etc. With state-of-the-art anti-static production line, big-scale product aging testing apparatus and advanced testing approaches, ATOP Technology has passed certifications of CE, FCC, ISO9001 and ROHS.
Embracing with business tenet
ATOP Tecnology Co., Ltd
9A,South of Hubei Building,Futian District
Shenzhen
Guangdong ,518000
China
Phone: 86-755-83461686
Site: http://www.atoptechnology.com
Contact Person
tony zhang / sales manager
Phone: 86-755-83461686
- Hardware
- IP devices
- SIP VoIP Gateway
- System Integration
- Cisco Systems
- Billing system of own development
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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