ciscoCisco Systems, Inc. is an American multinational corporation headquartered in San Jose, California, that designs, manufactures, and sells networking equipment.[
Cisco (NASDAQ: CSCO) is the worldwide leader in networking that transforms how people connect, communicate and collaborate.


zycooWe are engaged in R&D and manufacturing of VOIP device and provide VOIP total solution to home and ofiice.We have a outstanding R&D team and engage in R&D of embedded device with heavy experience.Till now, our product line include IP phone, Embedded IPPBX and series of Asterisk PCI cards. In addition to our brand product, we had designed many types embedded hardware and software for our ODM customers.


digiumDigium Inc., the Asterisk® Company, created and is the innovative force behind Asterisk, the most widely used open source telephony software. Since its founding in 1999 by Mark Spencer, Digium has become the open source alternative to proprietary communication providers, with offerings that cost as much as 80 percent less.


portechPORTech is a VoIP GSM Gateway Manufacturer,Supplier, Developer.
Delivering Innovative Solutions, Quality Products, and Through Services in a solid growth environment. We build trust one customer at a time.


audiocodesAudioCodes Ltd. designs, develops and sells advanced Voice over IP (VoIP) and converged VoIP and Data networking products and applications to service providers and enterprises. AudioCodes is a VoIP technology market leader focused on converged VoIP & data communications and its products are deployed globally in broadband, mobile, cable, and enterprise networks.


policomPolycom (NASDAQ: PLCM) es una corporación multinacional con más de 3200 empleados con presencia mundial y ventas anuales de aprox USD 967 millones en el 2009. Fabrica y vende equipos de teleconferencia y video conferencia.


dinstarShenzhen Dinstar Technologies Co., a hi-tech enterprise specializing in voip solutions and IP voice value-added services. It is the IP voice product and system manufacturer with the leading market share in China and with the most complete product lines in this industry.
Dinstar has a professional and high-quality R&D team made up of lots of experts who are experienced in telecom network, data communication, mobile communication, or network integration.


yealinkThe industry’s leading provider of VoIP phone and IP communication solutions.
Companies choose Yealink to ensure that when their workforces are widely-dispersed geographically they can still communicate clearly and productively over long distances. Yealink makes sure that people are able to connect and co-operate easily from their desktops, classrooms, meetings, conferences and mobile devices.


grandstreamFounded in 2002, Grandstream Networks is the leading manufacturer of IP voice/video telephony and video surveillance solutions. Grandstream serves the small-to-medium business and consumer markets with innovative products that lower communication costs, increase security protection, and enhance productivity. Our open standard SIP-based products offer broad interoperability in the industry, unrivaled features, and flexibility.