i tried to get last outgoing call contact , so when used:
CallLog.Calls.getLastOutgoingCall
but error occurred. the api level is 15, i tested it in android api 22 and worked fine(In Documentation said It added in api 8).
I found it, just add below to manifest:
<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.read_contacts" />