yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] trainman261:
Well I don't know how far you are, so I can't judge too much... although I have nothing against working together.

I doubt you would have to root the phone that has the cell connection you want to use - unless you wanted to route the conversation data a different way than the standard headset protocoll. It would be possible - although the problem, as I mentioned in a previous post on this thread, is that the APIs to record calls are not really meant for that - and they don't necessarily work on all devices. They are meant to give the app an approximate idea what is going on in the call, so that, for example, you could create some visualization while the call is running. If one were to use that method, then there would be a small possibility of getting it down without root or xposed - assuming the quality of the sound coming from that API is good enough.

The other possibility, which would most likely need an xposed module, but should work just bout anywhere, would be the standard "make the phone present itself as a headset" idea. That would mean the device acting as a phone should not need root (and could even have an ancient version of Android), but the phone acting as a headset would need root and most likely xposed. This is because of the way (from what I know) bluetooth works from a simplified perspective: device A asks device B: "what can you do?" Device B then says: "Well I can accept input from a keyboard and mouse, I can give you access to my Internet, I can stream my music to you, etc." - That's the service discovery. That's already the first place where you would have to hook into the system and make device B tell device A: "and I can also be a headset". Then there has to be a place where it hooks into the bluetooth stack when a phone call comes in - it has to route the call data to the app. The next step for me on that front would be to dig into AOSP code and see exactly where it happens, not to mention, I haven't yet worked on anything xposed-related.
[Android Q&A, Help & Troubleshooting] koopg:
I thought more like your number 2 explanation .

Well I am far beck . So if I join now I will hold you beck , so I Will keep learning the issue and if will get close to you I will beep you :)

I never worked on anything close to that and was trying to play with the Blu tooth class and see what they can do , I'm still fighting to get a simple connection from a test app .... any ways good luck let me know how you progress and if you need any help. So will I .

I will get beck to you in a week plus minus
[Android Q&A, Help & Troubleshooting] trainman261:
I'll be completely honest, I'm not sure I'll be a lot further in a week... to explain, the app where I'm using bluetooth is basically a simple app that mirrors notifications from your android to your windows desktop. If you're using Android's Bluetooth APIs, they're pretty straight forward. On Windows, on the other hand, I'm left with either learning some C language or using Java with bluetooth, which is a good deal more complicated than it is on the Android APIs. That's where I stumbled on some documentation on the different protocols, and that's where it appeared to me that this is the kind of information I would need for something like this. Of course, this is one of several different things. Yes, I have a tendency to do a little too much at once, why do you ask :D

Just that I know, have you done anything in xposed?
[Android Q&A, Help & Troubleshooting] koopg:
Xposed? Sorry bad English ? Don't know this term , is this dealing with root like devices ? Did I ask ? :) lol . Well I am c c++ visual Basic flash bash python and a bit of android programmer I work for emc and most of my work is around big servers and storage, it's a bit off blue tooth and tablet lol.

So this hole thing is new to me . So less talking I will learn what I can and will talk later on next week .
[Android Q&A, Help & Troubleshooting] Minni:
I have a TV. I have a receiver. I have a Bluetooth Transmitter. I have a Tablet. I have a headset.

I want to hear the TV sound via Bluetooth on my headphone.

Like a bluetooth headphone.

THX Skater
[Android Q&A, Help & Troubleshooting] ulao2:
Xposed module framework is a way to customization your current Android firmware giving it more options. Doing something like this is going to require some firmware customization. More then likely you will need to root your device to use this, hopefully, hacked fix. It may require a custom rom and if so I hope the author is willing to share his code as some of us already use a custom rom and would rather stick with it. I use a timmur mod and have to use it. So if we could simply hack the concept here and figure out how to do this, we can bug the authors of our custom mods to implement said fix. Though I hope we can somehow ovoid the need for a custom kernel mod.
[Android Q&A, Help & Troubleshooting] Mrbababo:
Guys you should seriously check this out. We might be able to some out get the Os of the device and analyse how to make it work. Or even make it better

https://www.kickstarter.com/projects/378232716/inkcase-plus-e-ink-screen-for-android-phone

http://developer.inkcase.com/projects/inkcase/wiki/wiki
[Android Q&A, Help & Troubleshooting] swDevCPT:
I've read through all posts on this thread. Much like everyone (mostly) on this thread, I have a similar situation trying to connect a "dumb phone" (CDMA phone) to a "smart phone" (Android) such that the "smart phone" is used as the primary controller of text and phone calls and the "dumb phone" is used as the transmitter and receiver of the voice, audio and text data. The communication through both phones is (of course!) through bluetooth.

I would like to assist in developing any app that can achieve this.

I am confused on one thing. I know that to ultimately achieve our goal, an app must be created such that the bluetooth service that the android device (another phone or tablet) can offer is hands-free capability (also known as a HF profile). Is it really necessary to edit a ROM (or even the bluetooth drivers) to achieve this goal? If so, why?
[Android Q&A, Help & Troubleshooting] ulao2:
In post #188, some ideas and explanations where mentioned. It's hard to say till one gets their coding finger wet but I'd bet a root app would do the trick. I think bigger issues will be apparent like quality and latency. This is all conjecture till someone starts a project :)
[Android Q&A, Help & Troubleshooting] trainman261:
[MENTION=6116577]swDevCPT[/MENTION]: It shouldn't need any ROM editing. It could well need root, and Xposed (if we didn't have xposed, then the chances are much higher that it would need a ROM edit). The reason why I'm thinking it will need that is because the standard Android Bluetooth APIs only provide access to the RFCOMM protocol and certain controls surrounding using a headset with the phone (but as far as I see, no possibility of using the phone as a headset itself). The problem is that RFCOMM is a different profile than the headset and hands-free profiles - not to mention the headset and hands-free profiles are realtime, while RFCOMM is not. That should also answer your question [MENTION=5614687]ulao2[/MENTION] - if we go with the normal (realtime) profiles, then latency (and quality) shouldn't be a relatively big problem.

One thing I ran into the JSR-82 specification. Although I get a strange feeling Android doesn't support it, it is something I will be checking out in the next while. Not to mention, I'm not even sure it would be doable with those APIs, even if Android supported them. While they do seem to offer more flexibility, I haven't read/understood far enough to see if that would be able to do it (this was, again, something I stumbled on when I was actually looking for something else, so my first reading of the document was not with the intention of using it for this).
[Android Q&A, Help & Troubleshooting] ulao2:
One of my friends has this watch that allowed him to answer calls via BT. He was able to use the mic on the watch to talk on the call. You'd think of a watch could do this a tablet could?
[Android Q&A, Help & Troubleshooting] Diablo2424:
Interesting, can you get us the make and model of that watch please? We may be able to port that feature from that watch to a Tablet.
[Android Q&A, Help & Troubleshooting] ulao2:
Apparently there are a few that do this. Like this one.

http://www.amazon.com/Bluetooth-Device-Answer-Android-Smartphones/dp/B00JVK86L0

This one he had was the Samsung Gear 2 Neo.
[Android Q&A, Help & Troubleshooting] dabotsonline:
Tablet Talk App can be installed on an Android tablet (and presumably an Android phone) to send SMS through the phone's number:

http://forums.androidcentral.com/sa...ing-tablet-talk-make-receive-phone-calls.html

"Privacy. Unlike other Android texting apps, Tablet Talk directly syncs SMS/MMS messages between the tablet and Android phone. No uploading or saving on company servers."

"There's more: MMS & group MMS support, custom themes, DashClock Extensions, Android SMS delivery reports, emoticons/smilies, backup and restore tablet SMS to phone … the list goes on!"

"Tablet Talk - Added Android -5.0 Lollipop support.

Tablet Talk now includes the native Android messaging app for the Nexus 5 and KitKat phones, giving users an alternative option for the default SMS app."

https://play.google.com/store/apps/details?id=com.apdroid.tabtalk

This saves faffing around with composing messages on the secondary device and then manually forwarding them using Pushbullet.

However, although phone calls work, they still require a Bluetooth headset:

"How can I use Tablet Talk for voice calls?

To receive voice calls, you will need to pair a BlueTooth headset to your Android phone. Tablet Talk will notify you of incoming calls on your tablet, and let you answer them, at which point the Bluetooth headset will take over the call. There’s no need to take your phone out of your pocket!

Why can’t I use the tablet’s speaker for phone calls?

Tablet Talk allows you to control phone calls from the tablet. However, it is not possible to use the tablet’s speakers or microphone for voice calls, owing to technical limitations of the Android platform.

The phone calling features were requested by and designed for users with Bluetooth headsets who wanted to be able to control phone calls from the tablet. You can use a headset and Tablet Talk on your phone at the same time.

Can Tablet Talk display a dialpad during a phone call?

Unfortunately, Android does not allow apps to use the dialpad during calls. We (along with many others) are hoping this functionality is added to Android soon. Please see this page for more information."

http://www.tablettalkapp.com/

I'm looking into the Audi / LG G Watch W120L, which runs Open webOS and features a SIM slot. PDAdb has speculated that it will feature 4G with bands: LTE700 (B17), LTE850 (B5), LTE1700/2100 (B4), LTE2600 (B7), LTE1900 (B2) ( http://pdadb.net/index.php?m=specs&id=7479&view=1&c=lg_w120l_audi_g_watch ). Hopefully webOS will feature VoWiFi and VoLTE support and support sound output in non-speakerphone mode when held to the head like a traditional phone (as I understand, the Samsung Gear S doesn't do this, although I'm not sure about the plethora of SIM-enabled Chinese smartwatches). I'd then probably use the forthcoming SIM-enabled 7" LG Project Tango tablet in favour of a 6" 2015 Nexus.
[Android Q&A, Help & Troubleshooting] Invidiousdemise:
This link was found on amazon's comment section. I'm not sure if it's what we are after but I would sure love it if it could be modified to work. I think the bluetooth stack of our devices needs to be configured though.

I can't post the links yet but if you go to amazon and look up the only review on the item "New U8 Bluetooth Smart Watch Wrist Watch Device Sync Answer Call MP3/SMS Android Smartphones(Black)" then you'll find a link to the APK. It does nothing useful. I think the bluetooth stack needs to be modified into "receiver mode".

Search "need idea on sending/receiveing audio over A2DP between android/non-android device" and read what is on stackoverflow for programming details that may help us.

If only we could port the "phone" interface from something that already has this feature on it. I am thinking that samsung galaxy player or maybe an aftermarket android car stereo headunit.

I want to implement this into my Nexus 7 for my car. If I can get this working, I have no need for an aftermarket headunit.
[Android Q&A, Help & Troubleshooting] digitaldj88:
idea

If you have a Samsung tab and phone you can use side sync to get phone on tablet
[Android Q&A, Help & Troubleshooting] infra4800:
still waiting for someone to add this functionality in nexus 7....

there are car android stereos which have this already ... the roms are here http://xdaforums.com/showthread.php?t=2660662

when i exctacted the rom from above and compared with nexus 7 rom, there are few same files, few different, i have no idea which files to look at... there are libraries with extension .so and don't know if they are required to be replaced in nexus 7 rom from working rom with bluetooth headset profile...

i know swapping of files might not work, they might be tied to os version etc...

anyone has any leads how to do this...i will setup linux and will download android development kit ... but do not know if i can import already built nexus 7 rom in to adt or eclipse
[Android Q&A, Help & Troubleshooting] micindev:
after a little research ive found this

http://stackoverflow.com/questions/15557933/receive-audio-via-bluetooth-in-android/15559902#15559902

and this

http://stackoverflow.com/questions/...droid-device-over-bluetooth/15821988#15821988

not sure if someone already posted these, i have no time to go thru all pages, but hope it will be usefull for someone

anyway... what about using wifi for routing audio?
[Android Q&A, Help & Troubleshooting] m374llic4:
With all the car stereos, and watches that can do this now, can we get this back up to the stop and revisited? No real answer still after a few years!

This is a step in the right direction at least.

http://www.android-rsap.com/
[Android Q&A, Help & Troubleshooting] ii20:
I really like the idea of using the bluetooth a2dp protocol to create a tablet 'carputer'.

android-review.googlesource.com/#/c/97832/

This page tells it is possible to use the bluetooth stack used in android 5 to make a a2dp sink device.

The problem is that I have never done anything with mobile programming or android roms in general. Maybe someone has a working example and could share it with us:confused:
[Android Q&A, Help & Troubleshooting] Anta:
Bump

Any news on tablet like bt/wifi headset?
[Android Q&A, Help & Troubleshooting] MasterOran:
Well iam on the hunt for such as feature as well.

But i still miss it damn hard.
[Android Q&A, Help & Troubleshooting] buntysahu:
Yes! I am also looking for the same. Because I likes to carry more then one phone together. But when my one phone rings I picks another by mistake. So I am searching for an apps which can allow me to control the calling function of both phone together, with out any internet connection, because i think it can be possible by wifi or bluetooth network, without using any bluetooth headset device(i feels uncomfortable with this). If you gets any sollution then please reply me at buntysahumail@gmail.com
[Android Q&A, Help & Troubleshooting] dan30tl:
I'm also looking for this functionality

Maybe this helps:

I own an LG G Pad tablet wich comes with an application called Qpair

When tablet and phone (which is a cheap chinese...) are paired with this application

a incoming call notification appears on the tablet with the caller's name and buttons to answer or reject the call

If I press the green button whole conversation is made on tablet and quality is very good
[Android Q&A, Help & Troubleshooting] conspiracyBE:
So wait... You can answer an incoming call from your phone on your tablet and have conversations through the tablet?

From what I can read, it only shows the notifications.
[Android Q&A, Help & Troubleshooting] dan30tl:
Yes

It seems that (probably) I am the only one who knows it

Weird, when I posted that I received notification from LG to update Q Pair app.

:))) I may be paranoid but I do not want to do this update, I fear that I will lose this functionality
[Android Q&A, Help & Troubleshooting] ch_bla:
Can anyone confirm this? Somehow I cannot install QPair on my Nexus 7 :(
[Android Q&A, Help & Troubleshooting] dan30tl:
As far as I can tell Google Play app is different from one preinstalled on the tablet. if someone with knowledge would change from G Pad application to run on any tablet would be great
[Android Q&A, Help & Troubleshooting] dareks79:
Hi,

I am reading this topic and I am wondering why making the app is so hard.

I have found car mirror with bluetooth on Aliexpress (just type in search bluetooth mirror). It is clearly visible that mirror has required functionality (shown on seller's pictures). Maybe someone knows lite bit more how it is solved there?
[Android Q&A, Help & Troubleshooting] virtualspeed:
I'm also interested in this. An app like LG Qpair or some app that changes bluetooth default functionality.

There's some development here about a2dp sink role: https://stackoverflow.com/questions...a-receiver-for-a2dp-profile/28892944#28892944

but even though one guy said he successfully tried it already I doubt there's an image somewhere for some device with this functionality enabled.

edit: found also this thread: http://stackoverflow.com/questions/...-androids-bluetooth-stack-to-enable-a2dp-sink
[Android Q&A, Help & Troubleshooting] krzych:
Strange that nobody have done it yet. And Google didn't fixed it yet. Strange world.
[Android Q&A, Help & Troubleshooting] xedaas:
..

I want to use android device as a hands free.
[Android Q&A, Help & Troubleshooting] eddddddy:
I don't understand. How to use it as bluetooth headset? BT is on, now what to do?
[Android Q&A, Help & Troubleshooting] xedaas:
I'm sorry about confusing. my mistake. :crying:
[Android Q&A, Help & Troubleshooting] SpiderAJ:
bluesoleil

Bluesoleil software (sorry I can't write an URL)

It can help for someone, not for me coz its windows to android conecting software

I'am, as most ppl here, looking for andro2andro conection coz I want use my old

SE ARC S as a small carputer (fits perfectly to ashtray in my Alfa GT)

So if somebody will find a solution to recive and make calls from one phone to another using BT

please let us know!
[Android Q&A, Help & Troubleshooting] Salcykhan:
https://android.googlesource.com/pl.../java/android/bluetooth/BluetoothHeadset.java
[Android Q&A, Help & Troubleshooting] eddddddy:
so where (or when?) it'll be puted in?

btw topic was interesting for use old phone's with sim, but today old android phones (used) costs like old nokias with buttons..

ofc topic still interesting for tablet users without SIM.
[Android Q&A, Help & Troubleshooting] Salcykhan:
I found that link on the internet, as per him it work.

Other then call forwards (which cost money)

But of i can use one phone /tablet as bluetooth headset.

Basically reverse technology for bluetooth headset.

When we share bluefi (raido takly app) why not forwards call via bluetooth to other phone
[Android Q&A, Help & Troubleshooting] eddddddy:
so I still don't understand how to use it..
[Android Q&A, Help & Troubleshooting] AndreaKPiermarteri:
Hi Everyone!

I wish to revive this thread, and throw out something which came to my mind. I hope for developers listening (I had a couple of experiences, but nothing so deep into the OS features).

Let's review the "state of the art": Android is not letting us access the API for "bluetooth sink", basically.

My proposal is:

What about 2 apps: a server and a client side. They will be connected by bluetooth, but no streaming of calls will happen on that.

The client side app simply send a "bluetooth" message to the server, with the number to call. The server:

- receives the message;

- turns on a dedicated wi-fi hotspot;

- send back a bluetooth message to the client.

When the client receives this, it connects to the wifi hotspot and send an "ack" to the server. After that, the server:

- calls the number;

- stream the call via wifi to the client.

This achieves:

- bluetooth connection between client and server (for energy efficiency);

- no bluetooth streaming;

- no remote wifi activation (let's say wifi should be active in both devices: it only requires to connect to a different network when required, but it does not require to turn on wifi, which if i'm not wrong, is not possible through the APIs).

What do you think about it? Is it possible, in your opinion?
[Android Q&A, Help & Troubleshooting] FalconA:
Don't think it's possible, form my understanding you can't stream audio into a phone call. So you may be able to hear but not speak.
[Android Q&A, Help & Troubleshooting] max797:
I was puzzled by the same problem, there is a PC with bluetooth, and a phone with a good wired headset, I want to listen to music from the PC without wire
[Android Q&A, Help & Troubleshooting] FerdiW:
In search for something similair, use phone with headphones as bluetooth ps3 headset.
[Android Q&A, Help & Troubleshooting] gpuccio87:
up

up.. did anyone find a solution?
[Android Q&A, Help & Troubleshooting] Desolationism:
Tablet as Bluetooth Headset

Seriously? There is a ton of demand for this around the web, and I can not even find a "No, it isn't possible", let alone an explanation.

I have been looking for this for over 2 months, and am about to start trying to figure it out myself..... anybody want to make a couple bucks and help me out?

ARE THERE NO DEVELOPERS INTERESTED?
[Android Q&A, Help & Troubleshooting] freak4dell:
I'm willing to help you test. Unfortunately, I have no programming knowledge whatsoever, so I wouldn't be any help in the development area.
[Android Q&A, Help & Troubleshooting] cspader:
http://androidforums.com/android-ap...ooth-tether-android-phone-android-tablet.html

http://androidforums.com/samsung-ga...info-tether-sgt-10-1-phone-via-bluetooth.html

http://android.modaco.com/topic/328580-bluetooth-pair-phone-to-tablet-gps-internet/

http://www.droid-life.com/2011/03/01/how-to-bluetooth-tether-to-motorola-xoom-using-original-droid/

http://android.stackexchange.com/qu...oid-devices-via-bluetooth-for-internet-access

http://androidadvices.com/bluetooth-tether-phone-internet-galaxy-tab-tablet/

http://wiki.maemo.org/How_to_connect_your_tablet_to_the_internet_using_a_mobile_phone
[Android Q&A, Help & Troubleshooting] gpuccio87:
:confused: cspader

Probably you didn't understand our problem: we are not looking for bluetooth tethering!...the question is if i can connect my Android smartphone to my Android Tablet (via Bluetooth) and transfer all my calls (not internet!) from my smartphone to my tablet...so when i'm in car i can phone with my tablet and not with my phone..or, in other words: Can i use my tablet as a bluetooth headset connected to my phone? i hope it's clear..

it's the same for me...i can test, but i can't program...

we need a good developer...please!
[Android Q&A, Help & Troubleshooting] 2wyce:
Me too... just posting to help show the demand!
[Android Q&A, Help & Troubleshooting] Arasagumar:
Tablet as bluetooth headset..

I'm also looking for this application: Tablet as bluetooth headset.. I can donate... TQ.
[Android Q&A, Help & Troubleshooting] viswam:
This should be definitely possible as already gmate done it for android phones, but it only connects with gmate device, it identifies other devices but says failed to connect.

So one can take this (Gmate-android2.apk) as a sample program for development.