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Thread: Tablet As Bluetooth Headset

  1. #1
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    Tablet As Bluetooth Headset

    Okay, so now that Android tablets are getting more popular for in-car use, maybe it's time to propose this on here.

    Some of us have Parrot kits and whatnot for bluetooth in the car, but for people using Android tablets, the easiest solution, if it were to exist, would be having the tablet itself serve as a bluetooth headset. This would effectively give you phone conversations over your car speakers, and you could either use the existing mic on your tablet, or you would wire an external one in.

    Unfortunately, nothing like this exists so far. There's solutions for seeing your SMS messages on your tablet, but nothing for voice. This appears to be because unlike the bluetooth stack for Windows, the bluetooth stack for Android does not support the Android device itself being used as a bluetooth headset. This concept has been brought up on XDA multiple times, but so far, no developers have picked up this project.

    Now, I could be completely talking out of my butt here, since I am not a developer, nor will I ever be, so please bear with me. I've seen some pretty crazy things done with Android, and it doesn't seem like modifying a bluetooth stack would be impossible. After all, somebody wrote that stack, right, and supposedly it's all open source, right? But whatever, let's say it's impossible. How about with the recent merge of the Android kernel with the Linux kernel? I've probably used Linux for about an hour in my entire lifetime, so I'm not sure what all capabilities it has, but I would assume that if the default Windows bluetooth stack has support for headset profiles, Linux probably does, too. Would the kernel merge make it any easier for a developer to get this done now?

    Forgive me if I sound really stupid, but I just really want to see this accomplished. It seems like it would be useful to a good portion of the CarPC community, so surely I can't be the only one.

  2. #2
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    that is a great idea, I have been trying to find something like that but without success...

    since we don't have a developer in our car pc community who would be willing to make it possible, the only solution for this I think is to make a bounty...

    gather money and offer it on xda to get this working...
    laptop based e46 carpc

  3. #3
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    i have got it done with a bluetooth dongle (bluesoleil 5.1)But thats not an option on tablets... i am using wifi to make calls from pc as well. maybe you could use wifi connection as well if you phone is a smartphone! But you will need a modem that way!

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    Quote Originally Posted by patrik999 View Post
    that is a great idea, I have been trying to find something like that but without success...

    since we don't have a developer in our car pc community who would be willing to make it possible, the only solution for this I think is to make a bounty...

    gather money and offer it on xda to get this working...
    Good idea. I can't offer much myself, but maybe we could get a good amount by combining a multiple pledges.

    Quote Originally Posted by settra View Post
    i have got it done with a bluetooth dongle (bluesoleil 5.1)But thats not an option on tablets... i am using wifi to make calls from pc as well. maybe you could use wifi connection as well if you phone is a smartphone! But you will need a modem that way!
    Yeah, Google Voice via WiFi tethered through the phone is an option, but that uses a different number. It would be much simpler if a Bluetooth solution existed.

  5. #5
    Newbie Diablo2424's Avatar
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    Quote Originally Posted by Freak4Dell View Post
    Okay, so now that Android tablets are getting more popular for in-car use, maybe it's time to propose this on here.

    Some of us have Parrot kits and whatnot for bluetooth in the car, but for people using Android tablets, the easiest solution, if it were to exist, would be having the tablet itself serve as a bluetooth headset. This would effectively give you phone conversations over your car speakers, and you could either use the existing mic on your tablet, or you would wire an external one in.

    Unfortunately, nothing like this exists so far. There's solutions for seeing your SMS messages on your tablet, but nothing for voice. This appears to be because unlike the bluetooth stack for Windows, the bluetooth stack for Android does not support the Android device itself being used as a bluetooth headset. This concept has been brought up on XDA multiple times, but so far, no developers have picked up this project.

    Now, I could be completely talking out of my butt here, since I am not a developer, nor will I ever be, so please bear with me. I've seen some pretty crazy things done with Android, and it doesn't seem like modifying a bluetooth stack would be impossible. After all, somebody wrote that stack, right, and supposedly it's all open source, right? But whatever, let's say it's impossible. How about with the recent merge of the Android kernel with the Linux kernel? I've probably used Linux for about an hour in my entire lifetime, so I'm not sure what all capabilities it has, but I would assume that if the default Windows bluetooth stack has support for headset profiles, Linux probably does, too. Would the kernel merge make it any easier for a developer to get this done now?

    Forgive me if I sound really stupid, but I just really want to see this accomplished. It seems like it would be useful to a good portion of the CarPC community, so surely I can't be the only one.
    Sorry to bring this thread back from the dead, but was anyone ever able to figure this out? Also, for seeing your SMS Messages, what app(s) are you using?

    If not, maybe we should propose this idea over on XDA.

  6. #6
    Constant Bitrate Lankin's Avatar
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    Tablet talk. It's not free and it's not perfect. But the developer is dedicated and constantly adding features. He recently added dialing and call receiving. The only problem is, it still uses the phone for communicating, the tablet can only acknowledge the call, or dial the call, but the actual talking and listening would be done on the phone. It's not quite what we are all looking for, but as close as it comes for now. Here is a link

    https://play.google.com/store/apps/d....tabtalk&hl=en

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    Yeah, I still haven't tried Tablet Talk out, but I'm going to soon, I think. While I would love to have the audio routed through the tablet, too (and I hope it eventually is), I am going to be trying to install a bluetooth module into my car as well, so that combined with Tablet Talk should take care of the problem for me. I've tried to install that module a couple times before and could never get the wiring right, but I think I know what I was doing wrong now, so hoping to get it working the next time I try.

  8. #8
    Newbie Diablo2424's Avatar
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    Thanks for the info on Tablet talk, too bad it doesn't route the audio to the Tablet :-(.

    I am going to see what I can find/develop with this... if I can't go anywhere, I think I will just be stock using a BT headset with a 3.5mm output into my EQ and I'll have to switch the input on my EQ when a call comes in. Then the Microphone of the BT Headset I will extend the wires of it and run the mic to my gauge cluster for talking on the phone... I'll just have to answer the call on my phone and switch the input on the EQ.

    Also, if you want to follow updates on this either go to my CarTab worklog, or check this post on XDA - http://forum.xda-developers.com/showthread.php?t=844605

  9. #9
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    Quote Originally Posted by Diablo2424 View Post
    Thanks for the info on Tablet talk, too bad it doesn't route the audio to the Tablet :-(.

    I am going to see what I can find/develop with this... if I can't go anywhere, I think I will just be stock using a BT headset with a 3.5mm output into my EQ and I'll have to switch the input on my EQ when a call comes in. Then the Microphone of the BT Headset I will extend the wires of it and run the mic to my gauge cluster for talking on the phone... I'll just have to answer the call on my phone and switch the input on the EQ.

    Also, if you want to follow updates on this either go to my CarTab worklog, or check this post on XDA - http://forum.xda-developers.com/showthread.php?t=844605
    That's certainly an option, but it might be easier to just get a module that's built for that. Just don't get one that nobody has ever heard of, like I did (I got the Schoshe BT800). That way, you don't have to worry about switching inputs and all that jazz.

    I'll definitely follow your progress. Good luck!

  10. #10
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    Quote Originally Posted by Diablo2424 View Post
    Thanks for the info on Tablet talk, too bad it doesn't route the audio to the Tablet :-(.

    I am going to see what I can find/develop with this... if I can't go anywhere, I think I will just be stock using a BT headset with a 3.5mm output into my EQ and I'll have to switch the input on my EQ when a call comes in. Then the Microphone of the BT Headset I will extend the wires of it and run the mic to my gauge cluster for talking on the phone... I'll just have to answer the call on my phone and switch the input on the EQ.

    Also, if you want to follow updates on this either go to my CarTab worklog, or check this post on XDA - http://forum.xda-developers.com/showthread.php?t=844605
    That seems to be the best option as of now. you can still answer and initiate calls on the tablet so as long as your phone is paired with the external bluetooth device tied into the AUX input on the EQ, all you have to do is hit the source button on the EQ. Plan on doing this same thing with my setup

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