-void E2APMsgHdlr(Buffer *mBuf);
-S16 BuildAndSendE2SetupReq();
-S16 SendE2APMsg(Region , Pool );
+
+void E2APMsgHdlr(uint32_t *duId, Buffer *mBuf);
+uint8_t BuildAndSendE2SetupRsp(uint32_t duId);
+uint8_t BuildAndSendRicSubscriptionReq(uint32_t duId);
+uint8_t SendE2APMsg(Region region, Pool pool, uint32_t duId);