VoiceButton Plus (com.borisenkoda.voicebutton2plus) on Google Play
Using voice commands VoiceButton can search for contacts, call, dial the number, look for a place on a map, get directions, open the program.The app is able to voice incoming calls and automatically turn on the speakerphone. Activation program is supported via Bluetooth and wired headset. In systems with Android 4.1. and higher supported by work offline.