SIP Penetration Testing

We have contracts with Companies that allow us permission to test their Sip servers and penetrate test. If we are successful at penetration our product gets sold to them. The ideal candidate must have EXCELLENT penetration skills. Being able to penetrate systems without, and WITH firewalls on the market. We need to achieve atleast a 50 percent rate of success,in order to sell OUR product. More details will be provided. Serious bidders with real skills only apply:) We have future projects as well. There is room for growth:)