Database Users

rSAP connectivity

Sadly enough I have noticed that the xperia X1 does not like my premium volkswagen carkit. As used in passat or audi or skoda superb, bmw, Mercedes, etc.
I have an RNS-510, but have also tried it with a RNS-310. Both having the premium carkit in it. Also called carkit III.
It uses rSAP to enable transfer of contacts and phone settings control.
I have tested with a nokia N95 and it works perfectly fine with that after you enable the remote sim access profile. Also known as SAP.
Sadly enough, the X1 refuses to connect. The carkit just says the phone is not compatible.
Anybody have any clue what to do?
Maybe a custom ROM which does have this functionality? Or a tool that can be added?

u r talking about remote sim access right?
my rom (cmex absolute touch) got an option to enable it under bluetooth setting (connections)

Yes or You use this little cab! Works perfectly with VW Golf VI PRemium Handsfreekit. I used the smaller file, but if it dont works try the bigger one!
In the bluetoothsettings you should find the sap profile after the installation, and in the programs a small utility to activate it. the Xperia himself has no SAP Profile!

wow!
I definately came to the right place! I will try this out tommorow first thing and let you know if it works!
Thnx's again. Also considering your rom now achmed20, because I believe this is quite basic functionality which should have been there in the first place!
As I said, I'll let you know if this worked!

not working yet
Well, that helped, a bit.
I get to the connection screen, have to enter the 16 digit pincode and after that the car just says connecting, and stays doing this for a minute or two and then just says failed or not compatible.
So I'm a lot further, but it isn't working yet! I'm thinking because of all the things I have tried, I might have broken it somewhere, but unsure how or what.
Thinking of maybe flashing it with a different (custom) rom, to see if that might fix the problem.
Anyone have any other advice?

no experience with the kind of trouble your having but if you want to try off on a fresh start, i would do a hard reset, then install the cab fix that was recommended.

still not working
I just installed the cmEX absolute TOUCH rom and did a hard reset after that.
Enabled rsap on the last tab of bluetooth and the car says its connecting and just does that for a long time (after entering pin code). Sadly enough, it just times out.
Anybody have any clue what could be the problem? I have the feeling we are allmost there, but there is just a little thing causing it to time out.
rsap even says it's connected to my skoda and everything.
From what I can gather, the cmEX absolute TOUCH rom is based on a touch HD.

more testing!
Okay, from what I have been able to gather, the following is going on.
The carkit is trying to log on in a frequency that it cannot handle.
I have been able to connect the carkit, download the address book and make calls with my Xperia now. No problems what so ever....except one. I was using a SIM from a collega whom has a different network!
I use t-mobile and my collegea has kpn/telfort. Doing more research, I have learned that kpn/telfort and vodaphone use the 1800 band frequency. And that t-mobile uses the 900 frequency.
I am not entirely certain at this point that this truly is the real problem, but, my phone works, my carkit and car works, so all the software bits are in sync, but only using a different sim. Rebooting the phone, changing nothing but the sim, makes it completely broken again!!
I'm using a RNS-510 with the Skoda/VW premium carkit. If anyone is able to shed some light on this and what possible fixes could be, I'd really like to hear!
I have been looking (and mailed) if a fiscon unit could potentionaly fix this problem. They also have units which intergrate with the system.
But I'd rather find a software solution, obviously. Sadly enough, manny cases can be found where people have problems, often, with no solution. This problems is *NOT* specefic to the Xperia, I do realize that now, since the new ROM, rSAP is working just fine.

more complex then ever....
Okay, things just more complex then ever before.
My x1 using a HTC touch HD rom base and rSAP from HTC (default in rom).
KPN sim = works and can call
Vodaphone sim = logs in but carkit crashes on trying to connect to cell towers. But car connection functions.
T-mobile sim = connection to carkit never gets finished.
I'm totally lost. Using a friends N95, all the sims work flawlessly.... which makes me even more clueless, because the carkit reads the sim data and then connects using it's own radio to the cell network.
Please, advice? How can this be fixed? Is there a different version of the HTC rSAP software available maybe?

The plot thickens again.
Using my sim card in my X1, not working. Original ROM, Original ROM + rSAP extensions, cooked rom from touch HD with native rSAP. Just non-functional.
Using the exact same phone, without the t-mobile sim but with the KPN sim, works perfectly, no problems what so ever.
Using an older Nokia E50, both sims work flawlessly, also my t-mobile sim.
This leads me to one conclusion and that is that the HTC rSAP implementation is seriously bugged.
Anyone have any idea on how to proceed? Somewhere I have read that the HTC's wouldn't handle 3G or UMTS sims and only use older ones. But, using the KPN sim I connect to 3G and it works. Also the nokia E50 of N95 can use any network and it just plain works. There for that statement is wrong in my opinion and it is caused by buggy software of HTC.
Anyone have a good idea on how to proceed? Lots of people having this problem and buying nokia's, but for no real reason other then buggy software it seems.
I really like my X1, and payed a lot of money for it, so I really need this to start working.... Please assist and help, also people with a diamond or other HTC, using the same software.

sadly enough, no progress
Did some tests again today, but sadly enough, no progress yet.
I'm going to try and get a hold of a Touch Diamond and a Touch HD and see how those preform with my sim. If my suspiciouns are correct, they will also fail, making this a combination of bad software with bugs with certain sim's.
That is the conclusion I am faced with right now... sadly enough, no idea how this can be remedied.
Are there developers whom might be able to write a reliable rsap implementation or will HTC ever come with a working version?
What do you guys think?

Sonyericsson will not provide SAP for the Xperia. Thats the point....

Been in contact with support
I have been in contact with Sony-Ericsson support and they tell me they cannot make the X1 compatible, because it is not just software.
Off course, to me this sound like total bull****, seeying I have allready had an raap connection with the X1. But this was either using HTC software add-on's or using a rom that was based on the htc touch HD.
Sadly enough, I cannot work without this functionality... and thus will be forced to sell my phone and buy... a nokia.... not bad, since I have had nokia's all my life. But I really really do not eNjoy beying forced to do so.

But everybody has known that the xperia has no SAP Profile... in every test, in every Datasheet you can see it! Why you buyed an xperia?

Wrong order
I orderd the x1 around the same time I orderd my new car (Skoda Superb II 2.0 TDI Ambition Business line ).
The car came with a carkit that can only do rSAP, but it is very very nicely intergrated with a external antenna, full adress book acces, etc. etc.
To my amazement, there was no rSAP on the phone, while all current high end models do carry support for it. Thus thought that a simple program or rom fix would provide it.... sadly enough, while some stuff works, it is very very flaky.
So it's a combination issue, off course I realize that. But I'd rather replace my phone and sell the x1, then having to change the carkit piece in my car (it is far more expensive). And still, I just cannot believe that such a basic function, is not in there.
Especially because it is made by HTC, which do carry this functionality!
So the problem was created by having both products in the same time frame. And my reluctance to believe such a high end phone would not carry this protocol.
From closer reading though. It seems that the x1 (with a custom rom) is not at fault here. If my speculations are right, any htc device with rsap from factory even has a big change that it is not going to function. Also reflected by my tests.
Using a HTC touch HD based rom on the X1, rsap is added and functions brilliantly using a KPN sim. Vodaphone works sometimes and crashes the carkit now and then and using a t-mobile sim, it does not work, at all. Since I have a t-mobile business account... it doesn't work at all for me.
I have not been able to get a hold of a Touch HD or Touch Pro to test if these problems also form on that phone, but will do so when I get the change.
So for now, even the HTC software seems to be bugged and thus I have formed my conclusion that my best option is to go back to nokia (which I have used for about 10 years now). The x1 is great, but not beying able to call in the car.... that just isn't going to work for me.
The new N97 looks pretty decent....

I have a jetta 06 tdi with mfd2(dvd version rev c) and skoda (kufatec) bluetooth modul installed by myself. I can do a Synchronisation of the Phonebook with Names and Numbers , dialed and missed calls , incomming calls with Names and i have a option to accept or decline a Call from the fis display , using my Multifunction Steering Wheel. Everything working perfect with my Xperia x1i.

Hmm
Most likely that module is a fiscon module or an older part of skoda. Am I correct?
The fiscon does not use rsap and older premium carkits from VW also did not. But their newest carkits included in the passat CC and skoda superb II are rsap only.

Quindor said:
Most likely that module is a fiscon module or an older part of skoda. Am I correct?
The fiscon does not use rsap and older premium carkits from VW also did not. But their newest carkits included in the passat CC and skoda superb II are rsap only.
Click to expand...
Click to collapse
Im not sure we can post a direct link here to another website , but there is what im using in my Jetta : http://www.kufatec.de/shop/product_....html/XTCsid/9f268df051bdc7806c7825cc426d606c

Old Version
Ah, yes. That is an orginal skoda part, but it is the older version from the Superb I and not the Superb II. That uses the other profiles and not rSAP.

touch HD behaves just the same
Hi everybody.
I had the chance to test both X1 (rSAP from cabs in post #3, thanks by the way) and HD (native rSAP implementation) on a VW touareg premium car kit and I must say they suffer from the same problems: most of the time the connection is established, but immediately drops and enters an endless loop of connection/disconnection, where everything can happen: car kit crashes, phone crashes, vodafone goes bankrupt, etc.
What hurts the most, though, is that very rarely and randomly, the connection with X1 is firmly established and everything, for unknown reasons, starts to work fine. This drives me crazy, for it would be a lot easier to cope if the feature wasn't available full stop.
Nonetheless, this makes me think a solution must exist somewhere, but I'm too much of a noob to find it...
Hope this helps, byebye.

What's the problem with Hero based ROM's and BlueTooth?

Hello.
Before you tell me... I already searched the forum and I can see many posts about the problems with BlueTooth in the Hero based ROM's, but none of these posts I read (I could have missed some, of course) say what the problems are exactly, so I don't know if it can be a problem for me or not.
The only things that I need from BT are connection to the Parrot CK3000 handsfree on my car, and to send/receive files over BT. Ocassionally I will use the Magic as a 3G modem, but I can do it through USB if not working through BT.
Are these BT features affected by these BT problems on Hero based ROM's?
Thanks in advance.

Not sure if this applies to all hero roms but in the 'jacxheroskiv' rom the problem is a missing shared object (just a missing file in the filesystem)
http://forum.xda-developers.com/showpost.php?p=4479554&postcount=96

Hi There
At the moment Bluetooth is problematic on all hero roms for the sapphire or otherwise. Audio head sets (wireless headphones) seem to work ok but everything else doesn't. So unfortunately your car kit won't work. (I have the same one, it pairs but the audio is garbled) File sharing on the other hand is a problem for all the androids so far (There is an app on the market that provides the functionality but it's not as elegant as it could be) so don't expect that to work on hero roms. I haven't tried Bluetooth tethering because WiFi tether works so well. Perhaps someone else could comment.
Now for the difficult part...
So far as I can tell a willing developer, correct me if I'm wrong, could make the Bluetooth work if the source code for the hero was made available (should be available in a few months if the recent release of the sapphires source code is anything to go by) There seem to be quite a number of people who need this functionality so I'm sure one of the rom cookers will get to it but unfortunately there is no way to know exactly when. For this reason I've decided to stick to the ion roms for now. In any event, Touchflo/Sense UI will be made officially available for the magics in due course...for a price of course
On another note any support financial or otherwise is greatly appreciated by the developers so if you want to encourage a particular functionality a few bucks and a friendly message will go a long way. Please remember though that the developers do this kind of thing for the love of it and provide no explicit support for their roms. Any and all risk is taken upon yourself but in most cases caveats will have been picked up by someone before hand.
Sorry if I've mentioned some things you already knew but I thought to add some info applicable to other newcomers.
Enjoy hacking!!

Thanks both.
I guess I'll have to use a non-Hero ROM then. As for the BT file transfer, I've seen at least one Cupcake ROM with it enabled and available as an option in the BT menu. I don't know what ROM it was though, I think I saw it in a Youtube video.
P.S.: I noticed that this thread was moved to "Sapphire general", sorry for put it in "development", I did it for it was related to Hero ROM's. Thanks mods for move it.

A2DP works for my Sony Ericsson HBH-DS205 - music streams flawlessly.
However, the call feature does not work - is this another common bluetooth problem with the HEROs?

rSAP not working after Android 2.2 (Froyo) upgrade.?

I'm starting a new thread on this because I think it is important and to gather together findings on this.
From early reports it seems that rSAP is not working for some people after upgrading to Froyo.
rSAP is not part of any Android build but is built in to the Galaxy S by Samsung, which is why it is the only Android phone to support this.
Samsung seem to say it is still there but all the reports I have read suggest otherwise, although one member has posted on this forum saying it works for him. This leaves us with four possibilities:
Some Bluetooth settings have changed which disable rSAP (I can find none.)
Some network settings have changed which disable rSAP. As rSAP is a GSM only protocol, which is why it doesn't work on 3, this is a possibility. I see the network setting is now for Auto GSM/WCDMA mode, which did cause problems on a previous Nokia with rSAP. Possibly changing to GSM only could resolve this.
Various builds of Froyo do not include rSAP. It is possible, for example, that the 3 build does not and the upcoming O2 build may include it.
Samsung really have made a rick and left it out of the build.
Currently my Mercedes-Benz is in for a respray and I have no way of testing any of this.
I'd be interested in hearing others experiences. This is a serious issue for me as I purchased the Galaxy S precisely because it did support rSAP. If it is now removed then the reason I bought the phone is gone and Samsung owe me a refund under the sale of goods act.

Just had a reply from Samsung support who say that if rSAP isn't working it is a software issue and to take the phone to a Samsung service centre. Given that the rSAP profile is a Samsung thing and not an Android thing perhaps this means some Froyo installations fail to initialize the rSAP profile.

So, for the avoidance of doubt, has anyone actually confirmed they've got rSAP working when running Froyo?

Someone has... reply #7
http://forum.xda-developers.com/showthread.php?t=824950

I can confirm that RSAP is working on my german I-9000. I am currently running Tayutamas Froyo (1.03) and using my phone with a VW PSFE. The issue that contacts are only imported from the sim card still remains.

So far all the reports of rSAP continuing to work after Froyo seem to be VW users. Mercedes-Benz, Audi and possibly Porsche seem to be the users reporting issues.

Just installed the VW 3C8035730A module to replace the rSap only 5N0035730C.
I have a HTC Touch HD that works as a rSap and a Iphone 4 that works as HF now. Android should should work i guess too.
You can read my post here: http://briskoda.net/forums/topic/182537-installed-rns510-module-3c8035730a-rsap-bluetooth/

HD2 NAND Android and SAP / RSAP?????

I have a HD2 Running stock build ROM but with CHT 2.0 and it's an awesome phone, love the fact that it is so customisable and despite WinMo 6.5 being discontinued it lives on with huge amounts of effort being poured into developing and porting....I am seriously considering flashing a NAND android ROM onto it instead of WinMo but have one BIG Problem!
Whilst trawling the threads ( and reading a million ' thanx' posts) well deserved I might add, I cannot find any comment or info anywhere as to whether flashing the HD2 to Android retains or removes the phones SAP/RSAP connectivity I have a 2010 VAG car and it uses the RSAP protocol and to be honest it is THE best handsfree in car solution I have ever used, ( and I have used most of them) very clear with great signal retention, as I use it for business I am loathe to lose it so you can all probably see my dilemma.....great OS or great handsfree.........anyone know the answer....it would be great if it does as R/SAP support is lacking on Android.......bar a website stating RSAP for android .....coming soon....HELP!!!!

daver38 said:
I have a HD2 Running stock build ROM but with CHT 2.0 and it's an awesome phone, love the fact that it is so customisable and despite WinMo 6.5 being discontinued it lives on with huge amounts of effort being poured into developing and porting....I am seriously considering flashing a NAND android ROM onto it instead of WinMo but have one BIG Problem!
Whilst trawling the threads ( and reading a million ' thanx' posts) well deserved I might add, I cannot find any comment or info anywhere as to whether flashing the HD2 to Android retains or removes the phones SAP/RSAP connectivity I have a 2010 VAG car and it uses the RSAP protocol and to be honest it is THE best handsfree in car solution I have ever used, ( and I have used most of them) very clear with great signal retention, as I use it for business I am loathe to lose it so you can all probably see my dilemma.....great OS or great handsfree.........anyone know the answer....it would be great if it does as R/SAP support is lacking on Android.......bar a website stating RSAP for android .....coming soon....HELP!!!!
Click to expand...
Click to collapse
Im not too sure about the specific SAP/RSAP, but using my bt widget to my trucks bt stereo works great.

Thanks for your reply but BT is different than RSAP, its a specific VAG Group, BMW and Mercedes type of Hands free, works brilliantly but the compatibility of the latest phones is none existant other than Nokia.....that's not a direction I want to be going in as from my experience Nokias are shocking quality in the software department.

Can no one offer any advice on this, the rSAP problem with decent compatible phones is a HUGE problem across europe, covering VW, Audi, Skoda, Seat, BMW And Mercedes, there are loads of people looking for an answer to this?
Thanks in advance......

Cant think of a way of saying this without sounding like im being funny and i really dont mean to be but why dont you just flash a rom and try it and if it dont work flash back to winmo you can back up before you flash. Or try an SD version. (Dont mean to sound sarcastic)
Sent from my HTC HD2 using XDA App

android-rsap[dot]com
I think someone is on it.
I hope..........

[Q] rSAP & Android @HD2
Hello @ all
Excuse my bad English.
can someone help me install these files/app in to a SD Build?
w w w . android-rsap.com/installation.html
--> Step 1: Installing System Files
Thanks in advance
-----> the solution!!!
- rename original /system/lib/libhtc_ril.so to /system/lib/libhtc_ril.orig.so
- extract libhtc_ril.new.so from rsap-install.zip and copy to /system/libhtc_ril.so

alltho this thread is already a little old I still wanted to state, that the rSAP server developed by android-rsap.com is now fully working on the HD2 with only a few devices acting weird.I had it running on a MIUI build.
my problem tho is, that after flashing back to WinMo (stock or Duttys, doesn't make a difference) the rSAP function doesn't work with the VAG Premium any longer-it never connects, or if it does with a trick, it fails soon after.sometimes it freezes the hd2, sometimes it even freezes the premium...
re-flashing, task 29, mtty all didn't help. be warned people.it can seriously mess with your phone.

Did you try to flash back to stock? I have the same problem
My RCD510 didn't find my HD2. All other bluetooth devices around my were found

As I said, I tried everything but the car never connected properly to the HD2 again ever since using this rsap app. It must have left some weird connection settings in the car unit. I wanted to do a reset on that unit to test but I never managed. Now the car is sold and this thread obsolete until someone else comes up with this. Subject finished.
Sent from my TBD Runny

Nexus 7 as hands free bluetooth device?

I know that at the moment this isn't possible, but does anyone know if there is work being done on the Android bluetooth stack to enable a tablet to be used as a bluetooth hands-free device? A bit of searching shows that it is a regularly requested feature but I can't seem to find any info on any developers who are definitively working on this (except for one little questionable nugget that stated that the CM developers were playing with Bluetooth. Hardly enough to go on.).
I want to incorporate a Nexus 7 into my 370Z as a carpc but the lack of being able to integrate phone features is holding me back. Using data apps like grooveip are a no go for me as data connections around here aren't reliable enough for consistent daily use. Thanks in advance for any info.

I'm not to sure of what your asking, but if you wanna make calls from your tablet using BT this app allows you to do that as well as send SMS and MMS from it https://play.google.com/store/apps/details?id=com.apdroid.tabtalk hope that helps and is what you mean
Sent from my Nexus 7 using Tapatalk 2

I appreciate the suggestion but I don't think this will work. What I would like to do is mount my tablet in my car and use it as a front end for my phone to make/take calls the way an OEM bluetooth car system would normally work. My understanding is that your tablet must be paired as a hands free device, which android tablets currently don't do. I looked at Tablet Talk but when using that app from what I can gather when you accept a call on the tablet it actually activates the call on your handset. Ultimately I want to use the tablet as a hands free solution as I drive stick and holding my phone to my ear while driving is a no-no.
In the past I've used bt headsets but I lose them constantly and frankly I'm tired of replacing them. Oh well.

Well, good luck in your search! And you hit tablet talk spot on BTW lol. Oh and if you do find a solution, plz post it! This sounds like something I would love to use.
Sent from my Nexus 7 using Tapatalk 2

SpungeWorthy said:
Well, good luck in your search! And you hit tablet talk spot on BTW lol. Oh and if you do find a solution, plz post it! This sounds like something I would love to use.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Thanks. I'll thinking I'll probably go the route of a more traditional carpc for now, but if and when this becomes a feature you can take advantage of with android tablets I'll have to reevaluate the situation.

Nillaz said:
I know that at the moment this isn't possible, but does anyone know if there is work being done on the Android bluetooth stack to enable a tablet to be used as a bluetooth hands-free device?
Click to expand...
Click to collapse
This would be a great extension or compliment to the various apps that let you send/receive SMSs from your tablet via your phone. If I could at least receive/answer calls too, I could leave the phone elsewhere at home.

Just to let you know I've contacted parrot and garmin with regards to something like this.
I want a solution where I can make my nexus 7 a full media center with DAB radio and a good sat nav without needing a cellular link and hands free for my phone which includes the voice commands available through the tablet.
So hopefully they will get back to me and I'll post up here what they say.
Something I haven't solved yet either is getting all the antennae feeds into the nexus, I was thinking of getting a sharks fin antennae and wiring them into a raspberry pi to then blue toothing them into the nexus, I could also then attach a HDD to the pi to use it as a server to.
I want to do it this way so I can take the 7 otu and with me if I wish, rather than having it hard wired in. also if would allow for device upgrade.
Theres a nice thread on install and with references to the tasker app to get the tablet to work with the ignition and other functionality like that;
http://forum.xda-developers.com/showthread.php?t=1819175
b

BT app
There is an app under development for this I think. play.google.com/store/apps/details?id=com.funkyandroid.phonelink
I'm thinking of dropping a Nexus 7 in my car but the lack of hands free bluetooth is kind of a deal breaker.

Did anybody ever get this working? I have my Nexus installed in the car, and would love to be able to use it as a speakerphone. I don't need to actually be able to make the calls via the tablet, just need to be able to use it as a basic bluetooth speakerphone / headset type of thing.
It sounds like it should be something fairly simple, but I cannot seem to find much.

I have been wanting this for a long time, I'd love to be able to take my older Android phone and re-purpose it as a car GPS/Internet Radio/Handfree, etc.
I know the Samsung Galaxy player has this functionality, I wonder if any of their devs could help out.

if this work in linux so i think can work on android
Hi to all,
i been looking for this "bluetooth role" for long time. I have read a lot of forum and the entire XDA posts about this..
it seems that this is the definitive question like "what is the answer to life the universe and everything" simple 42
and it seems that is the paradise for all want to make a carputer/droid/tablet/**** car radio replacement... so... i'm one of you
this post is for some devs (i'm a dev too) i'm asking for help ....
the problem is: which android version do you want to use?
why this question? simple: from the android 4.2 google has decided to trash the bluetooth bluez stack and reimplement the wheel with bluedroid...
i read the documentation about bluedroid at this site:
https://source.android.com/devices/bluetooth.html
and there was written that there are some profiles actualy implemented but not the Bluetooth Hands-Free Profile server.
Ok it's not a problem, taking a look to the template of other profile i can implement it.
now the question is HOW DOES IT WORKS?
so i searched and bum this is how:
version 1.5
version 1.6
ok and now? and now i tried to find some similar implementations and...
after another night of search i found this....
HFP For Linux
where there is the downloadable source code.
now I think we have all the necessary to make this possible...
BUT there are some problem that i haven't resolved yet for a lack of knowledge of course.
it seems that the hfp override any other profiles on that example, it's not bad, in a system that i want to use i need only a HFP profile and AD2P togheter all the rest is useless
i think that this at the end is a fork of the standard android project and how I/we can put it into a rom or a patch and who want to add to a rom/kernel? how it can be done? is a patch better ? a new kernel like franco's or better to submit to google?
I hope to have intrigued someone with this post and I hope that somebody can link me to some documentation to understand how to put all the information I have together.
ps. i have tried to reply into this thread:
[Q] Android phone as bluetooth headset?
but of course i have to few posts to make my suggestion there

I may be out of line here but try reading about the gmate+ device.
I got one paired with my Nexus 7 32gb right now and currently using it as a phone. I believe there are other similar gadgets out there, as I've done some researches before I actually got mine to work. I have yet to try it with a bluetooth headset paired because I lost mine just on the day when I was about to try it out.
Anyway, one problem here is, the app for the device is currently not updated so there are a lot of things that need tweaking and one major issue for me is the ringtone. As I have posted here before, sine N7 does not have native ringtone, there's no alert tone for incoming calls. As for text messages, the notification alert tone works. I know there's also GPRS for it but haven't tried it out yet.

Try these options...
As far as an option for a Nexus 7 you may want to try a sip dialer like 3cx or linphone or zoiper and establish a free sip account at iptel.org or something. As long as you have wifi or a 3g connection which some tablet have you should be able to make and receive calls, or try ""Blue Fi" from the play store. it may work.
naiku said:
Did anybody ever get this working? I have my Nexus installed in the car, and would love to be able to use it as a speakerphone. I don't need to actually be able to make the calls via the tablet, just need to be able to use it as a basic bluetooth speakerphone / headset type of thing.
It sounds like it should be something fairly simple, but I cannot seem to find much.
Click to expand...
Click to collapse

golfnz34me said:
I have been wanting this for a long time, I'd love to be able to take my older Android phone and re-purpose it as a car GPS/Internet Radio/Handfree, etc.
I know the Samsung Galaxy player has this functionality, I wonder if any of their devs could help out.
Click to expand...
Click to collapse
I just got a new Nexus 7 for the same purpose of replacing my vehicles head unit with a tablet.
I am digging into the BT stack since I believe that I should be able to implement (or port) the profile on top of Android 4.3 assuming that the SCO data is available through the raw BT connection. There is an open source HFP implementation on sourceforge for Linux that migh be close enough to do the trick and save a bunch of coding time. It's going to take a while for me to get the time to dive too deeply into this one, but if I succeed or come to the conclusion it can't be done, I will let folks know.

Hello guys.
I am going to buy Nexus 7 for my car for the same purposes, - navigating, internet.
But mainly is for the Hands Free function.
Unfortunately, people saying nexus can't use it. But it's lol...I don't believe nexus7 doesn't support hands free.
Gentelman, tell me any way to make nexus 7 works hands free.
Thank you in advance.
P.S. if you ask wham am I mean when saying "hands free", so there is an example http://www.youtube.com/watch?v=ZEFjDKtlao8

Use some Motorola MotoActiv Bt code?
I have a Motorola MotoActiv running watch... Features gps tracking for running and biking, MP3 player and Bluetooth... The Bluetooth is mainly used for wireless headphones, but if you have a Motorola Phone, the watch can display text msgs from the phone and you can use the headphones/mic through the watch to take calls. (the idea being that you can leave the phone in a pocket or backpack while you're bike riding, I guess, and still take calls.)
The device runs Android (I'm sure someone's rooted it on here). Maybe that code can be dissected and repurposed for what were all looking for??
J

more on Motorola Watch
SmartNexus said:
I have a Motorola MotoActiv running watch... Features gps tracking for running and biking, MP3 player and Bluetooth... The Bluetooth is mainly used for wireless headphones, but if you have a Motorola Phone, the watch can display text msgs from the phone and you can use the headphones/mic through the watch to take calls. (the idea being that you can leave the phone in a pocket or backpack while you're bike riding, I guess, and still take calls.)
The device runs Android (I'm sure someone's rooted it on here). Maybe that code can be dissected and repurposed for what were all looking for??
J
Click to expand...
Click to collapse
Just an update on something I said in my previous post... I was looking at my MotoActiv watch today and it says you have to have an "Android phone" not a Motorola phone as I said in my previous post. So I'm wondering if the phone audio over Bt can be reverse engineered from the Motoactive watch for other android devices.
I actually decided to root my watch today just for the fun of it... it would really make the perfect "Car Head Unit" as it has Android OS, MP3 capabilities, FM Tuner, Bluetooth and Phone audio over Bluetooth built in... if only the screen was larger than 1.5".

Looks like the Nexus 4 and Nexus 7 2013 are getting some love in this area with a new custom stack:
http://www.bluez.org/bluez-for-android-status-update/
Looks like you need some compiling skills, but I think this is what you are looking for.

It must be work... Or not?
Hello guys!
I'm thinking on a same project for a while. It doesn't matter if not work for me, but would be great if yes.
I found something 2 days ago:
Parrot Asteroid Smart
This is an android base head unit/navigation, and the bluetooth handsfree is working on it. How it's possible? Any chance to port it into the Nexus 7?

solution
So i had an idea today and decided to call my carrier (Cricket). They told me it is possible to purchase an extra sim card and they will program the imei# to match my phone. This will enable me to make and receive calls on my tablet as well as my phone using the same number. Also i will have full access to my data.....problem solved with only 15 dollars. I hope this helps somebody.