Free In-Network Calling
Calls within the operator’s network are absolutely free of charge.
Grandstream GXW 4004 offers small organizations, home users, remote offices and companies with a territorial work system a high-performance solution with excellent price/quality ratio to more effectively manage the cost of communication, while expanding the functionality of existing telephone systems in organization. Grandstream GXW 4004 is a solution, which easily integrates into existing VoIP FXS phone systems and FXO gateways.
Inventec Multimedia & Telecom Corporation
Inventec Multimedia & Telecom Corporation was established in 1999, as well as the establishment of the main R&D and Operation Headquarter at Nei Hu, Taipei, consists of two manufacturing sites in Penang,Malaysia and Tianjin,China, mainly develops and prod
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