I also checked at the level of Visual Studio 2017 or 2019 and even the dotnet build command to compile but nothing there does the bluetooth does not work. I’m using System.IO.Ports for the connection. Net (versions vary by project but I keep the same versions and have tried higher versions but still the same problem). I was able to test the applications without having to build but just change the dependency references and the bluetooth works well! I took over the work of a former developer and the work was kept on hard drives. Indeed, I manage to establish a connection and send it instructions between the device and the computer thanks to virtual COM ports generated via the device in Bluetooth but I cannot receive the data that should be sent by the device.
I have a problem with my device consisting of a Bluetooth card BLE (Bluetooth Low Energy) more precisely NINA B112 from the manufacturer UBLOX and my applications today. (not desirable as I need VOIP calls to happen)Īny ideas/suggestions will be appreciated.
#Bluetooth sco audio device android#
I also observed that depends on the VOIP app attempting to stop sco on a call end, checking the mode may not work as the app could call stopBluetoothSco after the mode change.Ĥ) Make a dummy call using ConnectionService api's that makes android think its in a call but that prevents VOIP calls from being established and hence the sco link will not be disconnected. I have gone over several SO posts on this but with no success.ģ) I observed that tMode gets set to MODE_NORMAL (0) when a VOIP call ends and I can startBlueToothSco() there but there is no listener for AudioManager mode changes and I do not want to poll it. While in a VOIP call (hangouts, whatsApp etc), the in-call audio route options do not work.An incoming whatsApp call tears down the sco established by using.There were two problems with this approach. There are a lot of hooks to detect a sim-based call and end but not for VOIP based calls.Ģ) Start sco using startVoiceRecognition() like below. I would like the sco link to be either not torn down when the VOIP call ends (preferred operation) or re-established through "some" mechanism.ġ) Trying to detect VOIP call start/end but reading other SO posts, looks like this is not possible.
When a VOIP call ends (eg whatsApp, google hangouts, skype, viber etc) while using a bluetooth headset, the sco link gets torn down. It is okay for a user while in the VOIP call menu to select the BT/speaker icon button and tear down and bring back up the sco link (as it is user initiated). I am trying to keep the bluetooth sco connected for a device running android from the time the bluetooth headset is connected to when the headset is disconnected or more specifically I would like the sco link not torn down by an app while the bluetooth headset is connected.
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