I can't test it on all devices, so don't be surprised if it fails. I'll try my best to make it work on all rooted devices.
This is a patch to clear missed call notifications for exDialer on android 2.3.x, by installing a tiny package named xMissedCall as system app. Before patching, make sure your phone has been ROOTED, or it will fail. Compatible with exDialer v66+.
It was tested on some devices. But there is no warranty, use it at your own risk. I'm not responsible for data or system that may be damaged or lost.
In xMissedCall Patch v4