If you want to put Android on speaker phone, there are a few things you need to do. First, open the Settings app on your phone. Then, go to Phone and tap Speaker. Under “Speakerphone,” you’ll see a list of devices that can use your speaker phone. Tap the name of your Android device and then tap OK. Next, open the Voice Dialing app on your Android device and tap Add New Contact. Under “Type of call,” select Speakerphone Call and then enter the number for the person you want to call in speaker phone mode. Finally, press OK to add the contact to your list of calls. ..