Need 5 to 7 concurrent calls
 

I need a provider that allows me to have 5 -7 concurrent calls for my business.. Any idea? Quality is a must.

Have a look at http://www.voicetrading.com

I use it and had no problems so far. I even use it on different locations. You can show ANY number you want for outgoing CLIP! Ideal for business usage with competative rates...