This company is likely in violation of FCC regulations. We used them for their virtual service, multiple extentions. On numerous occasions the system just shut down, or reset all our settings to default. Customers could not reach us, or leave messages. Numerous calls to tech support yielded nothing but apologies and they outsource their call center somewhere outside the US. I asked them politely to port our toll free line away and they told me that "we decided recently not to do this". This company is a sham, and they gladly take your money.