SIP Softswitch
It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
Analog Adapter – this is a device used for connecting one or several standard analogue telephones to digital telephone communication systems (for example, VoIP) or non-standard telephone systems.
TTT Communication Co., Ltd.
101 WORLDCOM CO., LTD. is a leading provider of secure VPN, Voice-VPN and access to Web and client/server applications `anywhere`. The company has years of hands on experience supplying business software, Internet solution, SSL VPN products and services t
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