Miui 2.4.20 FC on call

app_vercode:10
device_model:triumph
build_version:2.4.20
condition:1
processName:com.android.phone
pid:2453
uid:1001
tag:null
shortMsg:java.lang.NoSuchMethodError
longMsg:java.lang.NoSuchMethodError: com.android.internal.telephony.cdma.CdmaConnection.isCallWaiting
stackTrace:java.lang.NoSuchMethodError: com.android.internal.telephony.cdma.CdmaConnection.isCallWaiting
at com.android.phone.PhoneUtils.answerCall(PhoneUtils.java:276)
at com.android.phone.InCallScreen.internalAnswerCall(InCallScreen.java:3839)
at com.android.phone.InCallScreen.handleOnscreenButtonClick(InCallScreen.java:3214)
at com.android.phone.InCallTouchUi.onTrigger(InCallTouchUi.java:778)
at com.android.phone.InCallSlidingPanel.dispatchTriggerEvent(InCallSlidingPanel.java:426)
at com.android.phone.InCallSlidingPanel.access$1000(InCallSlidingPanel.java:31)
at com.android.phone.InCallSlidingPanel$5.handleMessage(InCallSlidingPanel.java:649)
at android.os.Handler.dispatchMessage(Handler.java)
at android.os.Looper.loop(Looper.java)
at android.app.ActivityThread.main(ActivityThread.java)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java)
at dalvik.system.NativeStart.main(Native Method)



libra_saga-userdebug 2.3.7 MIUI 1.11.25 test-keys
(Sent from MIUI user feedback)