Siemens Enterprise OpenStage 40 SIP IP-phone is a great solution for people working in the permanent place. This model features a large display and easy setup of various protocols such as TDM, HFA and SIP.
ASTech Voice
ASTechVoice is a new voice service that can replace your current telephone line from the telephone company. All you need is an internet connection and you can get unlimited local and long distance calling, low international rates, and all those features y
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