This method is used to encrypt SIP settings for WebInitialize.

HRESULT EncryptSipSettings(BSTR sCustomerId, BSTR sWebKey, BSTR sRealm, BSTR sOutboundProxy,
                           BSTR sRegistrationProxy, BSTR sUserId, BSTR sLoginId, BSTR sPassword, BSTR *psEncryptedSettings);

string EncryptSipSettings(string sCustomerId, string sWebKey, string sRealm, string sOutboundProxy,
                          string sRegistrationProxy, string sUserId, string sLoginId, string sPassword);