Call phone via bluetooth

Make call remotely from one phone through bluetooth using other phone?

There is a remote Bluetooth sim solution named rSAP (Bluetooth Remote SIM Access Profile), which is used to remotely connect to car mobile.

But the developer of the app said, it will not work for the task I need:

I don’t think you will find a solution for your use case. It may be possible to do it by using the «Handsfree» Bluetooth profile but I doubt that the Android programming interfaces make a Handsfree client possible. You will most probably have to create your own Android firmware, e.g. based on LineageOS.

Is this possible to solve in some other way?

I’m not sure how, but i know it’s possible because you can turn off sim card access in Bluetooth settings, So hypothetically you can use your Bluetooth as a remote sim card on the other device ! . Their should be some sort of app out that will utilise this feature !

Why do you want to do this ? . If you explained the exact purpose for this, you will be more likely to get a concise answer . For example, If you wanted to receive calls to your S3 on your S4, You’d set up a forwarding number and an immediate ring out time. . If you wanted to make calls as your S3 number, you can use an application on the store called DingTone and set up your ID with a confirmation code on the S3. If you wanted to do this because you have the wrong sim card ( micro, nano, etc ) Just cut or place the card exactly on the terminals ! cut corner up !

DingTone starts calls locally, not on my other phone through Bluetooth. No DingTone is not good for me.

You can WiFi Hotspot from your S3 to your S4 and make an internet call using your S3 Number in Dingtone .. It’s a sort of work around for what you want !

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The call via Bluetooth on Android

The wireless headset is not new, and the number of people using it is increasing every year. In this article, we will look at how to make a call via Bluetooth on Android.

Setting up the device

To make calls via Bluetooth, you must perform these actions:

1. In the main menu of your smartphone, go to “Applications” by clicking the corresponding icon.
2. Tap the “Settings” icon.
3. Press «Bluetooth».
4. Move the slider to the active mode to enable this function.
5. Activate the visible mode by ticking the line “Make phone visible”.
6. Turn on the headset by doing a long press of the power button. If the indicator lights up, then the device is active and can be used.
7. To make pairing, you need to find the device on the smartphone, which we want to connect to. To do this, tap “Search for devices”.
8. In the list of available devices, select the desired one by clicking on its name.
9. You may need to enter the PIN-code, depending on the model. It can be found in the instructions to the device, but as usual, it is 0000.
10. Then the connection will be created; you will need to wait a few seconds.
11. The pairing is completed successfully, if you see the word “Connected” under the name of your headset in the “Paired devices”.

To make a call, go to the phone book and dial the number – the signal will go to the headset. In addition, when the device is connected to the phone, you can answer an incoming call by pressing the button on the headset and use it to talk.

Skype calls via the headset

If you are communicating using the Skype, you can use a headset for your convenience: it will improve the quality of the conversation and add comfort.

In order to make calls from your smartphone using this device, you will need to install the “Skype for Android with Bluetooth” utility.

On your smartphone, you must perform these actions:

1. Go to the Google Play.
2. In the search bar, type: Skype.
3. Tap the application icon, click “Install”. Also, the application is available for downloading via the link .
4. To start, press “Open”.
5. If you have an account, click “Skype Name”.
6. If you have not registered, select “Create account” and make a registration. After that, go back to the step 5.
7. Enter your username in the “Username”.
8. Enter the password in the “Password”.
9. Click the arrow to open the program.
10. Wait a few seconds to log in.

To make a Skype call using the Bluetooth for Android, you should do the following:

1. Pair the smartphone and headset, as described above.
2. Start Skype by clicking the icon.
3. Go to the “People”.
4. Select the desired contact and click “Make a call”.
5. Wait for the connection to happen.
6. Click the specified icon that allows turning the speaker off or switching to the headset.
7. Make sure that the icon has changed and the signal has gone to the wireless device.

Call Recording

Sometimes it would be very helpful to record conversations on Android via Bluetooth, to save an important call.

1. Go to the Google Play.
2. In the search bar, type “in call recorder”, and you will see a list with a large number of applications: all of them are suitable for recording, but we will look at the utility “ Automatic Call recorder “.
3. Tap “Install”.
4. Agree with the requirements by clicking “Accept”.
5. To start, click “Open”.
6. Choose a theme and press “Next”.
7. Set the convenient parameters and click “Done”.
8. You will go to the “Recordings” menu, which will store the recorded conversations.
9. Go to the phone book or dial the number you want, and then press “Call”.
10. During a call and the conversation, the recording will occur automatically. This is evidenced by the red mark at the top of the screen.
11. To listen to the conversation, go to the “Recordings”, you will see the name of the caller and the call duration; click it.
12. To listen to the recording, press “Play”.
13. Listen to it.

The call via Bluetooth on Android: Video

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Accepting a Call via Bluetooth Headset

Does anyone has any advice or a best practice how to correctly handle bluetooth headsets? Any help is very appreciated. Thanks in advance!

Did you try to read for any input you get from the bluetooth device? Using an InputStream ? Maybe the device sends some data when you press a button.

Did you find the answer? I am faced with the same problem, if SCO is enabled, my first click while ringing is simply ignored.

3 Answers 3

During normal and virtual voice call (including ringing) all events of Bluetooth headset unit buttons are processed by Bluetooth Headset Service internaly and not broadcasted as button events. Bluetooth Headset Service redirects these events into Telecom framework (answer/hangupCall).

@Dariusch For example:incoming call. Audio Gateway (smartphone side) sends unsolicited results RING via serial port and, if in-band ring feature is enabled, establishes SCO connection and sends ringing sounds to it. In such context pressing buttons on Hans-Free unit will cause sending ATA (accept) or AT+CHUP (reject) command via serial port (older Headset profile knows the only command AT+CKPD=200 for all cases). All these commands will be processed by HeadsetStateMachine and forwarded to Telecom framework.

These events are handled internally in HeadsetStateMachine (under packages/apps/Bluetooth).

These events are forwarded to IBluetoothHeadsetPhone interface. The single application to which all the events are forwarded is defined at run-time by following binding code in HeadsetStateMachine.java. This is to allow phone manufacturers to forward them to custom phone application instead of default one in cases where default one is not used.

Intent intent = new Intent(IBluetoothHeadsetPhone.class.getName()); intent.setComponent(intent.resolveSystemService(context.getPackageManager(), 0)); if (intent.getComponent() == null || !context.bindService(intent, mConnection, 0))

To make the events get forwarded to your application instead of default phone application you would have to modify aosp code. You would need to intercept the events at one of HeadsetStateMachine , BluetoothHeadsetPhone proxy or the phone application.

Unfortunately what you are looking for is currently not possible without modifying aosp code. Some headsets like Plantronics have custom BT events which are forwarded to all applications — some of the existing VoIP applications support these custom intents to support at-least answering calls for some of the headsets.

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Best apps to make calls via bluetooth

Intercom for Android is an app or application which allows users to place group calls with other Android or iOS devices over Bluetooth or WiFi. No Internet connection needed.

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2. BlueFi Phone

BlueFi Phone is an Android app or application which allows voice communication and chat over WiFi or hotspot connection and Bluetooth. This features contact list and channel encryption. Supports Android 4.0.3 and above.

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3. Bluetooth Walkie Talkie & Chat

Bluetooth Walkie Talkie & Chat is a communication app developed by Stupendous Andro for Android devices. The mobile app allows users to chat or call through the use of their Bluetooth enabled devices.

Bluetooth Walkie Talkie & Chat

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4. EZ Bluetooth

EZ Bluetooth is an application or app for Android which enables or disables Bluetooth connection for the users’ calls. This can also enable or disable Bluetooth while charging.

• Website: https://play.google.com/store/apps/details?id=maxime.peron.ez.bluetooth
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5. BluetoothTalkie

BluetoothTalkie is a communication app via Bluetooth developed by ShashaVS for Android devices. The app serves as a walkie-talkie to be used with two Bluetooth enabled phones or devices.

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6. Call to Bluetooth

Call to Bluetooth is an app developed by Fernando Figueiredo for Android devices. The app allows users to enable Bluetooth when receiving or making a call through their headset or hands-free device.

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7. Motolky

Motolky is a communication app developed by Devlight for Android. Through the app, users can communicate with each other via Bluetooth call by connecting with each other’s devices.

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8. Walkie Talkie

Walkie Talkie (SMS and voice) is a communication app developed by MaxDotA for Android devices. The app allows users to send messages and voice chat or call via Bluetooth.

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9. Walkietooth

Walkietooth is a communication app developed by Massimo Milazzo for Android. The app serves as a link between two Bluetooth enabled devices and can be used as a walkie-talkie, messenger, or baby monitor.

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10. Talk Bluetooth

Talk Bluetooth is a communication app developed by Mlc for Android devices. The app allows users to enable their Bluetooth devices for voice chatting or calling.

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11. HoSayoH

HoSayoH is a social messaging app that utilizes a cross-platform peer-to-peer and Bluetooth connection to send a message. It requires no internet connection to send voice messages and publish content.

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