- Multi-Tech Systems
Provides telephony, embedded, modem, Internet security, and remote access for VOIP, socket, firewall/VPN, wireless, and more.
- Mediatrix Telecom, Inc.
Develops IP telephony products such as integrated access devices, PSTN and digital trunking gateways, PC-clients, SIP-based telephony servers, and protocol software stacks.
Providing voice over Internet protocol (VoIP) gateways.
- Cisco IP Telephony
Provides information on Cisco's line of IP telephony products.
Manufacturer and exporter of IP telephony servers and gatekeepers.
- Welltech Computer Co, Ltd.
Manufacturer of VoIP products, including SIP Proxy, IP PBX, VoIP IVR server, Billing Voip server, and VoIP recorders.
- Welltech Computer Co., Ltd.
Manufacturer of voice over IP products and systems.