new constants are declared

	  const PrivacyValue c_privacy_id := "id";

	  const PrivacyValue c_privacy_header := "header";

	  const PrivacyValue c_privacy_user := "user";

	  const PrivacyValue c_privacy_critical := "critical";

	  // @ (at) sign

	  const charstring c_AT := "@";

		const StatusLine c_statusLine421	:=	{c_sipNameVersion, 421, "Extension required"};

		const StatusLine c_statusLine422	:=	{c_sipNameVersion, 422, "Session Interval Too Small"};

		const StatusLine c_statusLine423	:=	{c_sipNameVersion, 423, "Interval Too Brief"};

  		const StatusLine c_statusLine433	:=	{c_sipNameVersion, 433, "Anonymity Disallowed"};

		const StatusLine c_statusLine480	:=	{c_sipNameVersion, 480, "Temporatily Unavailable"};

		const StatusLine c_statusLine481	:=	{c_sipNameVersion, 481, "Call/Transaction doesnot exist"};

		const StatusLine c_statusLine482	:=	{c_sipNameVersion, 482, "Loop Detected"};