[Android One (First-Generation) Cross-Device Origin] redy2006:
[BUG] Operator Code

I'm using Mito Impact, default CM 12.1 install. I had bug when trying to call the operator code, such as *123# then the phone rebooted.

Here's the snippet logcat:

I/Telecom ( 528): CallReceiver: onReceive - isUnknownCall: false
I/Telecom ( 528): PhoneAccountRegistrar: getUserSelVoicePhoneAccount, voice subId = -1 prompt = true
W/InputMethodManagerService( 528): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@2d9b8f9b attribute=android.view.inputmethod.EditorInfo@3ddf8f38, token = android.os.BinderProxy@e7cdf8f
W/ContextImpl( 528): Calling a method in the system process without a qualified user: android.app.ContextImpl.startActivity:1264 android.content.ContextWrapper.startActivity:329 com.android.server.telecom.CallsManager.startOutgoingCall:646 com.android.server.telecom.CallReceiver.processOutgoingCallIntent:105 com.android.server.telecom.CallReceiver.onReceive:43
W/ContextImpl( 528): Calling a method in the system process without a qualified user: android.app.ContextImpl.startActivity:1276 android.app.ContextImpl.startActivity:1265 android.content.ContextWrapper.startActivity:329 com.android.server.telecom.CallsManager.startOutgoingCall:646 com.android.server.telecom.CallReceiver.processOutgoingCallIntent:105
I/ActivityManager( 528): START u0 {flg=0x10000000 cmp=com.android.server.telecom/.AccountSelection (has extras)} from uid 1000 on display 0
V/WindowManager( 528): addAppToken: AppWindowToken{266f774d token=Token{59a66e4 ActivityRecord{1998a77 u0 com.android.server.telecom/.AccountSelection t48}}} to stack=1 task=48 at 0
I/Telecom ( 528): Call: CallerInfo received for *****: com.android.internal.telephony.CallerInfo@30090d50 { name null, phoneNumber non-null }
V/WindowManager( 528): Adding window Window{1591f775 u0 com.android.server.telecom/com.android.server.telecom.AccountSelection} at 5 of 11 (after Window{2ee2f21c u0 com.android.dialer/com.android.dialer.DialtactsActivity})
V/WindowManager( 528): Adding window Window{ffb2744 u0 com.android.server.telecom/com.android.server.telecom.AccountSelection} at 5 of 12 (before Window{1591f775 u0 com.android.server.telecom/com.android.server.telecom.AccountSelection})
I/Telecom ( 528): CallsManager: Creating a new outgoing call with handle: *****
I/Telecom ( 528): CallsManager: phoneAccountSelected , id = 1
I/Telecom ( 528): CallsManager: updateLchStatus subInConversation: 1
I/Telecom ( 528): Call: setTargetPhoneAccount ComponentInfo{com.android.phone/com.android.services.telephony.TelephonyConnectionService}, [356a192b7913b04c54574d18c28d46e6395428ab], UserHandle{0}
I/Telecom ( 528): CallsManager: makeRoomForOutgoingCall call = [857946897, PRE_DIAL_WAIT, null, *****, 0, childs(0), has_parent(false), [[Capabilities:]], false, ComponentInfo{com.android.phone/com.android.services.telephony.TelephonyConnectionService}, [356a192b7913b04c54574d18c28d46e6395428ab], UserHandle{0} 0] livecall = null
--------- beginning of crash
E/AndroidRuntime( 528): *** FATAL EXCEPTION IN SYSTEM PROCESS: main
E/AndroidRuntime( 528): java.lang.NullPointerException: Attempt to invoke virtual method 'android.telecom.PhoneAccountHandle com.android.server.telecom.Call.getTargetPhoneAccount()' on a null object reference
E/AndroidRuntime( 528): at com.android.server.telecom.CallsManager.makeRoomForOutgoingCall(CallsManager.java:1778)
E/AndroidRuntime( 528): at com.android.server.telecom.CallsManager.phoneAccountSelected(CallsManager.java:1007)
E/AndroidRuntime( 528): at com.android.server.telecom.CallsManager.phoneAccountSelectedForMMI(CallsManager.java:1023)
E/AndroidRuntime( 528): at com.android.server.telecom.AccountSelection$1.onClick(AccountSelection.java:86)
E/AndroidRuntime( 528): at com.android.internal.app.AlertController$AlertParams$3.onItemClick(AlertController.java:1082)
E/AndroidRuntime( 528): at android.widget.AdapterView.performItemClick(AdapterView.java:305)
E/AndroidRuntime( 528): at android.widget.AbsListView.performItemClick(AbsListView.java:1148)
E/AndroidRuntime( 528): at android.widget.AbsListView$PerformClick.run(AbsListView.java:3059)
E/AndroidRuntime( 528): at android.widget.AbsListView$3.run(AbsListView.java:3866)
E/AndroidRuntime( 528): at android.os.Handler.handleCallback(Handler.java:739)
E/AndroidRuntime( 528): at android.os.Handler.dispatchMessage(Handler.java:95)
E/AndroidRuntime( 528): at android.os.Looper.loop(Looper.java:135)
E/AndroidRuntime( 528): at com.android.server.SystemServer.run(SystemServer.java:298)
E/AndroidRuntime( 528): at com.android.server.SystemServer.main(SystemServer.java:186)
E/AndroidRuntime( 528): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime( 528): at java.lang.reflect.Method.invoke(Method.java:372)
E/AndroidRuntime( 528): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
E/AndroidRuntime( 528): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
I/InstallerConnection( 7196): disconnecting...
I/SystemServer( 7196): Entered the Android system server!
I/SystemServiceManager( 7196): Starting com.android.server.pm.Installer
I/Installer( 7196): Waiting for installd to be ready.
I/InstallerConnection( 7196): connecting...
I/SystemServiceManager( 7196): Starting com.android.server.am.ActivityManagerService$Lifecycle
I/XXXXXX ( 7196): choosing minFree values for 32 Bit