Every company wants to save money especially when it comes to communication. The company that I am working in lock our phones from calling out directly. All calls are by codes, for the selected suppliers and customers. The only phone that we can call out is through the fax machine.
If ever boss were to expand the company oversea, I believe, he will sure use the VoIP Phone Systems because it reduces upfront cost by eliminating the capital expenditures that come from buying and maintaining traditional PBX phone systems. Included with Nimbus VoIP is unlimited US calling and free dialing to any other Nimbus VoIP phone in the world!