http://switch2voip.us Call Center VoIP provider, SIP Trunking with unlimited channels from Switch2VoIP can be one of the most affordable things that you can switch to. If you run a call centre with have specific channel needs or you need to make a certain number of calls per second to maintain profitability, you need a dialer VoIP provider that understands your needs. Regardless of the call volume that you have, you can ensure that the setup is present. All of the channels can be managed effectively, too.