-/* Call states */
-#define SIP_CALL_ONHOLD (1 << 28)
-#define SIP_CALL_LIMIT (1 << 29)
-/* Remote Party-ID Support */
-#define SIP_SENDRPID (1 << 30)
-/* Did this connection increment the counter of in-use calls? */
-#define SIP_INC_COUNT (1 << 31)
+#define SIP_CALL_ONHOLD (1 << 28) /*!< Call states */
+#define SIP_CALL_LIMIT (1 << 29) /*!< Call limit enforced for this call */
+#define SIP_SENDRPID (1 << 30) /*!< Remote Party-ID Support */
+#define SIP_INC_COUNT (1 << 31) /*!< Did this connection increment the counter of in-use calls? */