In accordance with embodiments, there are provided mechanisms and methods for controlling access to telecommunications resources implementing a legacy protocol based upon a policy. These mechanisms and methods for controlling access to legacy protocols based upon a policy can enable embodiments to control access by third party created and other applications to network resources implementing legacy telecommunications protocols. The ability of embodiments to control access by third party created and other applications to network resources can enable network providers to provide greater access to network resources without compromising security of other users. Embodiments may further provide the ability to interface with legacy push protocols, multimedia message protocols and short message peer-to-peer protocols.