Contact Centers are increasing immensely due to increasing demand of customer support in almost each industry. Due to cost and other benefits offered by SIP based call center solutions, the contact centers have started using the SIP based call center for their day to day working. As contact centers deal with massive call, media and signals every moment, it is very important to ensure the security of a call center environment. Especially, contact centers might be dealing with sensitive user data. Thus, it is important to apply security checks so data don’t get hacked or compromised in any way. As a SIP based call center solutions work with IP to IP model, it can’t get secured with simple Firewall, no matter how advance it is! The Session Border Controller Solution is the best security mechanism here. It has not only secured many contact centers, but has also benefited them in increasing productivity and adhering the regulatory compliance.