How to Use Bluetooth Speaker for Phone Calls Iphone

How to Use Bluetooth Speaker for Phone Calls Iphone

Issue description

After connecting a Bluetooth device to an iOS or Android device, you may see the following bug:

• Failure to answer calls through a Bluetooth headset.
• Cannot record and play audio through a Bluetooth speaker.

iOS devices

Reason

The possible reasons include:

1. The iOS system selects sound routes for phone and VoIP calls, and the default audio routes are different from what you wait. Phone calls too include FaceTime calls and other calls implemented with CallKit.

   The default audio road for a phone phone call after connecting an iOS device to a Bluetooth device:

   • After tapping the answer button on iPhone, the default audio route is the iPhone speaker.
   • After tapping the answer push on a Bluetooth device, the default audio route is the Bluetooth device.

   The default audio route for a VoIP phone call afterwards connecting an iOS device to a Bluetooth device:

   • If a user has answered telephone calls, the default sound road is the one used by the last telephone or VoIP call.
   • If a user has not answered whatever phone call, the default audio route is the Bluetooth device.

   If the default settings mentioned in a higher place conflict with the sound routes you lot desire, you lot need to change them when connecting your iOS device to a Bluetooth device. For details, run across Solutions.

2. On an iOS device, the audio route for sound inputs and outputs must exist the same. If yous gear up the Bluetooth device as the audio route for recording, the organization switches the audio route for playback to the Bluetooth device accordingly.

3. A Bluetooth speaker can only record audio during a system phone call. If the app does not apply the CallKit, the post-obit happens:

   • Users who send audio streams cannot record or play sound through the Bluetooth speaker.
   • Users who just receive sound streams can only play audio through the Bluetooth speaker.

Solutions

Depending on which type of call you have an issue with, choose ane of the post-obit solutions to gear up the sound routes:

Telephone telephone call

• Before answering a phone phone call, change the audio route setting in Settings: swipe downwardly to reveal the search field, search Call Audio Routing, and modify the audio route to Bluetooth Headset. All incoming calls will be answered through the Bluetooth device even if you printing the answer push on the iPhone.

  

• During a phone call, you tin switch between the Bluetooth Headset, Handset, or Speaker options in the call interface.

• If you lot connect an iOS device to a Bluetooth speaker and answer calls in an app, ensure that the app uses the CallKit, otherwise, the above settings do not piece of work.

VoIP call

• Before making a VoIP phone call, you need to switch to the Bluetooth Headset manner in the Control Center. Apps can call the iOS native API setPreferredInput method to modify the audio road.
• When a VoIP telephone call through the Bluetooth device is interrupted past a phone call, tap the answer button on the Bluetooth device to respond the phone call, after which y'all can continue the VoIP phone call through the Bluetooth device once the telephone call ends.

Android devices

Reasons

1. Permissions to access the Bluetooth device are non added in the AndroidManifest.xml file.

2. Only the Bluetooth device that supports SCO tin can tape and play audio. If the Bluetooth device supports only A2DP, so information technology cannot record audio, which means it cannot be used to reply a telephone telephone call.

3. Yous can route audio to a Bluetooth device but if the Android device supports the use of SCO for off-phone call use cases.

Solutions

1. Add the following lines in the AndroidManifest.xml file to request permissions to access the Bluetooth device:

                                 <uses-permission android:proper name="android.permission.BLUETOOTH" />  <uses-permission android:proper name="android.permission.BLUETOOTH_ADMIN" />  <uses-permission android:name="android.permission.READ_PHONE_STATE" />            

2. Check if the Bluetooth device supports SCO. If not, switch to a SCO-capable Bluetooth device.

3. Call the Android native API AudioManmager.isBluetoothScoAvailableOffCall method to check if the device supports the utilize of SCO for off-phone call utilise cases. If the device does not support the feature, the user tin can only reply the call using the system default sound route.

How to Use Bluetooth Speaker for Phone Calls Iphone

Posted by: millettlasay1967.blogspot.com

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