[Bugfix][R306BR][bug-view-2007][voice] fix call back error

Change-Id: I0c5638e9729617dabf30f8288d7548505cdd36ca
diff --git a/lynq/R306BR/ap/app/ccapp/cc_proc.c b/lynq/R306BR/ap/app/ccapp/cc_proc.c
index 088312e..1b2cc5b 100755
--- a/lynq/R306BR/ap/app/ccapp/cc_proc.c
+++ b/lynq/R306BR/ap/app/ccapp/cc_proc.c
@@ -2189,6 +2189,7 @@
             msgBuf.src_id = MODULE_ID_SLIC;

             zCc_SendMsgToSub(&msgBuf);

 			

+			/*fix the issue of probability callback failure, call has not been established yet, with a probability of hanging up*/

 			sleep(1);

             

             zCc_SendAtHangupReq();