Develop Bugs

Bluetooth / Is there a way to get headset-profil for MDAIII?

Hello together,
because I want to work with Voice-Dial controlled from a BT-Headset, I try to find a solution for upgrading the BT-stack.
Also would this allow to use BT-Headset for music and video....(Mediaplayer,etc.)
Did anyone have an idea in which way we can integrate a headset-profil??
May be, anyone can post the related files and registry-entries from a other device, that uses Widcomm/Broadcom-Stack.
Thanx
Delfin

Handsfree - would be nice for the BMW Car BT as well
Yes, the handsfree Profile in the MDA III is missing and it hurts badly. I can't make it work with my BMW BT Carkit.
Does anyone know how to integrate Handsfree into the MDA III?

I alos would like to see this get fixed.
Just before this site had technical difficulties and lost several weeks worth of posts, there was a thread on this very topic.
It seem to me that progress was being made, but the current BT Profile only allows for Phone audio, not audio from device.
Even the not so good iPAQ 6315 had audion from device support.
I suppose first that I-Mate should fix the BT Profile all together, which is unstable on my PDA2K.

Just to clear this up....
The PDA2K does have handsfree profile. The profile only supports handsfree for phone.
What everyone is asking about is the ability to transfer audio from device to a bluetooth device (headset etc.). Is this profile called handsfree or something else, have read posts where someone mentioned it was called a different profile name?

Nighthawk said:
Just to clear this up....
The PDA2K does have handsfree profile. The profile only supports handsfree for phone.
What everyone is asking about is the ability to transfer audio from device to a bluetooth device (headset etc.). Is this profile called handsfree or something else, have read posts where someone mentioned it was called a different profile name?
Click to expand...
Click to collapse
...Hmmmm....
In a recent online conversation with a "club i-mate" tech rep- I asked about the so-called "Hands Free" profile they advertise the PDA2K as being compliant with....
ME: "My other bluetooth phone would allow me to simply speak the contacts name via my wireless headset and the phone would dial.....With my PDA2K I have to actually use the phone to dial out.......This is not a 'TRUE Handsfree OPeration'....."
Club i-mate: "True."
ME: "So the PDA2K doesn't really support 'Hands Free' profile as advertised, but rather ONLY 'Headset' profile?"
Club i-mate: "Yes."
I have been VERY pleased with all of my PDA2K EXCEPT for the Bluetooth functions. They totally dropped the ball with the Bluetooth on this device....

Interesting news.
Have you tried with voice software on the PDA2K?
Tomorrow (Saturday night now) I will break out the car kit and headset and see what I can learn. The car kit (nothing special, just Supertooth) allows both headset and handsfree, different button combo to activate.

Nighthawk said:
Interesting news.
Have you tried with voice software on the PDA2K?
Tomorrow (Saturday night now) I will break out the car kit and headset and see what I can learn. The car kit (nothing special, just Supertooth) allows both headset and handsfree, different button combo to activate.
Click to expand...
Click to collapse
Yes, I have Microsoft Voice Command on my PDA2K.
However, It requires activation by pressing a button on the PDA2K- and will only accept voice commands directly- via its own microphone- It will not activate/accept speech via a wireless headset, like ALL my previous bluetooth phones....
Again, this is not a true hands free mode- and it is entirely a limitation of the firmware/bluetooth radio stack Carrier Devices is using in the PDA2K at this time....
...for instance, with my SE T610, I could leave my phone in my jacket pocket or briefcase- in the trunk of my car, and still activate/voice dial anyone in my contact list simply by pressing one button on my wireless headset....
...as well, I could accept incoming calls just the same, as a tone would be heard in the headset, and a single press would accept the call. The PDA2K will not allow this. My PDA2K will not automatically find/activate my headset when an incoming call is made- it wont even let me use the headset 'unless' I have an active link to it- but when you keep an active link to ANY bluetooth headset and turn the unit off, it will repeatedly turn itself back on and run the battery nearly dead in a couple hours. I discovered this the hard way.
ABSOLUTELY USELESS bluetooth software in the PDA2K.....

I'm using SE HBH60 headset with Qtek 9090, if i receive a call and bt headset is off, i can just simply turn it on and press the button on the headset and the call is answered...If it's on already, i hear a ring in the headset and can answer the call by just pressing the button in the headset.

d3vil said:
I'm using SE HBH60 headset with Qtek 9090, if i receive a call and bt headset is off, i can just simply turn it on and press the button on the headset and the call is answered...If it's on already, i hear a ring in the headset and can answer the call by just pressing the button in the headset.
Click to expand...
Click to collapse
"...simply turn it on AND press a button on the headset and call is answered..."
Would you care to exaggerate here?
When I recieve calls, if I do not have an active link to my bluetooth headsets, I cannot answer with them... I must first go inot bluetooth manager and click on headset and click on 'connect'- which can take more than a few seconds each time I do....
I have tried this woth my Motorola, several Bluespoon's and my in-car handsfree system.... None will work unless the connection was made 'live' before the call, and then the PDA2K will not stay shut off, thus draining the battery...........

babj615 said:
Yes, I have Microsoft Voice Command on my PDA2K.
However, It requires activation by pressing a button on the PDA2K- and will only accept voice commands directly- via its own microphone- It will not activate/accept speech via a wireless headset, like ALL my previous bluetooth phones....
Click to expand...
Click to collapse
I think part of problem is the required button press, which isn't required on your other phones.

BlueAngel and BT Headset
d3vil said:
I'm using SE HBH60 headset with Qtek 9090, if i receive a call and bt headset is off, i can just simply turn it on and press the button on the headset and the call is answered...If it's on already, i hear a ring in the headset and can answer the call by just pressing the button in the headset.
Click to expand...
Click to collapse
When you have your bluetooth headset connected and the PDA enters the standby mode (for example, you don't use it for few minutes), if you receive a call does the headset automatically reconnect?
I'm using 9090 with Nokia HDW-3 BT headset, and I'm in trouble when I put my PDA in stand by leaving BT activated and the headset connected. It seems that after few minutes of standby the headset disconnects, but PDA's BT led is still flashing... Maybe is there any power saving feature in PDA's bluetooth stack so when in standby it disconnects the headset?

BMW bt car kit
The Xda IIs works fine with handsfree profile BT devices (such as car kits), I have personally tried it with a BMW built in jobby (X5) & a Nokia ck 7w. It also works fine with BT headsets.
I can only assume that the other providers/networks have made the same mistake that O2 did with the XdaII, i.e. use the Microsoft BT stuff which does NOT support hands-free, only headset profiles.
Perhaps one of the clever folk on here can suggest a way to get the O2 version on your phones?

BMW bt car kit
The Xda IIs works fine with handsfree profile BT devices (such as car kits), I have personally tried it with a BMW built in jobby (X5) & a Nokia ck 7w. It also works fine with BT headsets.
I can only assume that the other providers/networks have made the same mistake that O2 did with the XdaII, i.e. use the Microsoft BT stuff which does NOT support hands-free, only headset profiles.
Perhaps one of the clever folk on here can suggest a way to get the O2 version on your phones?

Also microsoft voice command does not support activation by bluetooth headsets, its not a fault of the imate, just no software to accept the voice dial command from the bluetooth headset

BMW BT with XDAII?
Would you please irblinx be more specific about how have you been able to made ANY kind of call through your XDAII?
My BMW series 5 built in BT hands free simply fails to Connect to the XDAII. I'm carrying a SE T68 just to use my car hands free system. Stupid way of using an 1000+ $ BMW extra.
Any help is wellcome!
:?

some confusion here (at least partly due to O2 giving the new model a confusing name!), the xda II does NOT work with car kits.
Only the new IIs works

Headset profile for PDA2K/9090
Sorry for my poor English
I need "HEADSET profile" for my PDA2K
Now all headset work with headset and hands free, but i nead "force" the headset mode with PDA2K
In headset mode (no hands free) I can use one headset for more devices, like PDA2K, notebbok, cellular phone.
In hands free mode the headset work with a device at time.
Regards

XDA2s and MS Voice Command 1.5

Hi all,
Does the XDA2s and Microsofts Voice Command work on a XDA2s?
I'm not English, but I'm sure my English is good enought!
Whenever I give a voice command I get a "please repeate" error..
I think it's something with the mic gain, but where and how do I set it lower? Enabling/Disabling the Microphone AGC settings did not really help!
Any suggestions?

You should rather forget about this application. I tried to use it but with no success, exactly like you. Then I tried other applications (with the same result) and finally I followed suggestions from this forum: Neuvoice - it works and it's cheap.
Rgds
Maciej L

Maciej L said:
You should rather forget about this application. I tried to use it but with no success, exactly like you. Then I tried other applications (with the same result) and finally I followed suggestions from this forum: Neuvoice - it works and it's cheap.
Rgds
Maciej L
Click to expand...
Click to collapse
Thanks Maciej L,
Yes I think I will dump it.. It really sucks...
Looks nice the Neuvoice. To bad there is no demo to test it 1st

Yes there is a demo version, just download the full version from somewhere and it works as demo until you purchase the unlock code (as far as I can remember - but I'm not 100% sure - so you should by yourself)
Rgds
Maciej L

XDA IIs Fonix Application
I have just received my XDAIIs upgrade from an XDA II and it comes complete with Fonix Voice Dial. It automatically records test voices against your contacts (name number) and then you can call it up any time. You can also record your own voice which makes it more efficient. It also works with bluetooth. It seems an OK applicaiton to me.
Is this what you have been talking about? :lol:

In a quiet environment, it really doesn't have any problems with recognizing my commands. As long as you don't have a terrible English accent. However, you can forget about if you are in a loud environment though.

of where you have downloaded it to you.
I don't find any demo in any place
greetings and thank you

XDA IIs Voice Software
I got mine with the XDA IIs cd but try Handango.com who have a good range of voice software including Vito Voice....

you have registered in your cd ?¿?
regards

Voice Command 1.5
well, I have to say MS Voice Command works great for me. 95% hit rate on about 1000 contacts in my xdaIIs. Even in the car. Far better that V1.01. A couple of tips from my experienece with it.
1. Make sure the microphone auto gain is "disabled"
2. If it initially has problems and hit rate is very low, a soft reset usually sorts it out
3. Map the "record" button to Voice Command for easier access.
4. If your car is noisy, use a wired head set while driving. (I have not been able to get the bluetooth voice dialing to work at this point)

Re: Voice Command 1.5
cbrow51 said:
well, I have to say MS Voice Command works great for me. 95% hit rate on about 1000 contacts in my xdaIIs. Even in the car. Far better that V1.01. A couple of tips from my experienece with it.
1. Make sure the microphone auto gain is "disabled"
2. If it initially has problems and hit rate is very low, a soft reset usually sorts it out
3. Map the "record" button to Voice Command for easier access.
4. If your car is noisy, use a wired head set while driving. (I have not been able to get the bluetooth voice dialing to work at this point)
Click to expand...
Click to collapse
Hmmm... With none of the Voice dial programs I've been able to get the bluetooth to work.. Not sure if it's the bluetooth unit itself, or if it's some ROM version thingy...
The BT headset is a SE HBH-600. The XDA2s is with ROM version 1.12.62 WWE and radio version 1.02.00.
Can/will this work with bluetooth voice dialing??

MS Voice Command & BT Voice Dialing
No, sorry, I have not been able to make it work. I think its still an issue with the implementation of the BT stack (in this case the Widcomm stack) on the HTC devices. I can establish a connect from my headset to the device, but does not "link up" with voice dialing.
I now use a regular noise cancelling wired headset in the car, via an adapter plug sold by PockPCTechs (www.pocketpctechs.com) Other wise just use the phone mic to initiate a voice command dialed call
Regards
Chris

Re: MS Voice Command & BT Voice Dialing
cbrow51 said:
Other wise just use the phone mic to initiate a voice command dialed call
Click to expand...
Click to collapse
I was going to ask how well this works?
I'm getting a BT car kit fitted literally in the next hour and was hoping I'd be able to voice dial like I could my old Nokia, while driving.

I am using
O2 xda2s with microsoft voice software
I have a fairly noisy sports car but it works well..
I have the voice mapped to contacts button so one press and direct voice towards pda and no botha.... about 95% hit rate on 200 contacts..
I must add it has only been that good since buying a brodgit car cradle so it positioned well.. obviously you have to turn stereo off
the only complaint i have with it is that when the voice speaks back to you to confirm what you have said I cant hear it very well..
does anyone know of any settings to improve audio levels..
cheers
stay happy

Hi Guys
I have upgraded my 'Voice Command' handsfree solution as follows.
1. Added an FM 'Sound Feeder' from Pocketpctechs, that connects to the xda via one of 2 different pocketpctechs audio adaptors.
2. Tune the radio to one of the 8 frequencies supported by the Sound Feeder and the xda then plays all audio output through the car stereo system. This works for all apps, including my Navman GPS and Media Player!. I also mapped a button (I used the record button) to Voice Command, so one press activates VC and I can initiate a call by voice from there.
The really nice thing about this arrangement is that if i have media player running through the system, and a call comes in, the music mutes automatically, the phone rings, and i can take the call. When you end the call, media player picks right up again!
3. For the microphone part, there are 2 options:
a. The one I am using right now, is to use the pocketpctech 'single' adaptor, that allows sound to play through the stereo, while keeping the mic of the xda active. This means the xda picks up your voice directly for voice command and telecons, while at the same time playing the sound you normally hear via headphones, through the stereo. This works great for the incoming voice, although you need to talk fairly loudly for the party calling to hear you well. Decent enough though...
b. The upgrade I will make this weekend is to use the 'dual' pocketpctechs adaptor. This one accepts the soundfeeder on one side, plus a regular 2.5mm heasdset on the other. This one disables the internal xda mic, and allows you to use the mic from the headset. So I plan to permantly position this mic (after cutting off the ear bud!) on the door pillar as in normal car hands free installs. This should improve the outbound sound a good bit....
Will let you know how I get on
Regards
Chris

In the end, the Parrot CK3100 car kit has its own built in voice recognition, so I have no worries

Great! I looked at the Parrot a while back. How much was it? Work ok?
Regards
Chris

Well, I've not really had chance to test it properly yet, seems to be good. Cost me £180 to have it fitted, the old one removed and a bit of extra power wired in for my GPS & PDA.

Hi Andy
Sounds good. Let us know how it works out for you. I am interested in how the bluetooth connection holds up. I am still having problems with my xda maintaining a connection with my bluetooth headset.
Regards
chris

Bluetooth Headset+HTC Device

Hi,
I'm proudly to have a bluetppth headset now. and i have to say it works very fine for me. with a few registry changes i even can listen to the music with the headset, but less quality, but it works. my problem is now that i can't use the voice speed dial by pressing the button on the headset. it only opens the phone keypad
i don't want to put out my phone everytime to dial or number or to use the voice speed dial. i want to start it with the headset. my question now is:
is there any possibility or programm to assign buttons from the headset to the phone, that i can do other stuff, like oben programs or something like this.
would be nice if anyone can help me.
btw. i have a htc herald

Marsters said:
Hi,
I'm proudly to have a bluetppth headset now. and i have to say it works very fine for me. with a few registry changes i even can listen to the music with the headset, but less quality, but it works. my problem is now that i can't use the voice speed dial by pressing the button on the headset. it only opens the phone keypad
i don't want to put out my phone everytime to dial or number or to use the voice speed dial. i want to start it with the headset. my question now is:
is there any possibility or programm to assign buttons from the headset to the phone, that i can do other stuff, like oben programs or something like this.
would be nice if anyone can help me.
btw. i have a htc herald
Click to expand...
Click to collapse
For using voice dialling you can use 'MS Voice Command 1.6' or 'Cyberon Voice Commander' along with 'JETware Mobile' application.
For assigning hardware key, you can do so with 'AE Button'.
Try it, I hope it'll help you definately.

Marsters said:
Hi,
I'm proudly to have a bluetppth headset now. and i have to say it works very fine for me. with a few registry changes i even can listen to the music with the headset, but less quality, but it works.
Click to expand...
Click to collapse
Can you please give us details of the registry changes you made to be able to listen to music on BT headset?
Thanks in advance

pwye said:
Can you please give us details of the registry changes you made to be able to listen to music on BT headset?
Thanks in advance
Click to expand...
Click to collapse
Same here. Have a big problem with the constant stuttering issue, despite having changed the bitpool numbers etc.
HELP!

Marsters said:
Hi,
I'm proudly to have a bluetppth headset now. and i have to say it works very fine for me. with a few registry changes i even can listen to the music with the headset
Click to expand...
Click to collapse
Hi,
i have a Nolan Bike Helmet with the N-COM Bluetooth Headset.
When i connect it with my HTC Touch i can see it and use it as a Phone Headset but not as stereo wireless for listening music... even if it is suable in such way with other phones.
In fact if i click on the bluetooth entry in the settings of the helment the "stereo wireless" option is greyed out
Any idea?
Any registry editing that can trim usable the stereo wireless???

Bluetooth car-kit: hands-free and stereo audio

I have been using the Touch Pro 2 for a little while now, and I must say: no regret at all that I've bought it.
But the reason I post here is because I'm having a problem with my car-kit and the Touch Pro 2 when they are connected through bluetooth.
First of all, some data about the car-kit
Car stereo: JVC KD-BT22
Bluetooth functions: handsfree calling and Bluetooth Audio Streaming
Bluetooth version: 1.2 certified
Profile: HFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3
The situation:
When I pair the devices I can check two options:
1) Handsfree
2) Stereo Audio
This should be fine, but the problem comes next:
- When I both check handsfree and stereo audio, I don't get any streaming audio (I just hear about one second the song which is playing at the phone), if I call or get called nothing hapenned except the display of the phone showing the caller. The car-kit just keeps playing (for example) the CD.
- When I uncheck the stereo audio, just connecting the handsfree everything works "fine" (some small problems, not mentionable).
- When I only connect stereo audio the same happens as described before: the song which is playing at the phone I hear about one second, and after that it's silenced (the song is still "going forward", but no sound, nor on the phone, nor on the car stereo).
I've tried different set-ups, searched the forums and didn't saw anyone with this problem/no sollution, so I hope someone could help me.
This happened with the Stock Rom and also the custom rom I'm using right now, no difference. When I connect a stereo headphone (from Nokia) through Bluetooh, everything works fine.

don't pair from the phone use your Radio to pair...i had the same problem with my Pioneer at first so i searched for the device from my stereo and it worked just fine and ...i hope this helps... and make sure your discovery is always on...take care!

Well, that in a case makes sense...
The carkit also connected to my phone when discovery was turn off. Seemed strange to me already. A little, maybe stupid, question: what do I need to swith off/turn off on the phone so the phone won't connect to the carkit, but that I have to let the carkit connect to the phone?

HTC aware
I have similar problems with the BT stack in the TP2, which is disappointing having migrated from a Snap. I e-mailed HTC who admit they are aware of BT problems with the TP2 and advised me to keep an eye on the support page for a fix.

apv245l said:
I have similar problems with the BT stack in the TP2, which is disappointing having migrated from a Snap. I e-mailed HTC who admit they are aware of BT problems with the TP2 and advised me to keep an eye on the support page for a fix.
Click to expand...
Click to collapse
I also tried mailing HTC about this problem. The reply wasn't so hopegiving
"We're sorry, but the carkit isn't compatible. Please fill out the form for our technical support team"... Summary: I've not been too lucky with this combination
Hope they might do something about it after all. Me just thinking that Bluetooth = Bluetooth, but it's more complicated than that.

I also have the same problem with JVC-KD-AVX2 streaming audio. couple of times i did manage to get it to work, but once the stereo is turned off and on, i lose the streaming again.
i called HTC and emailed them. one said my stereo is not compatible, but i did have it working kind of.
not sure what the problem is as the touch pro1 worked fine. also my friends N97 worked fine

did all of you use your stereo to search for your phone or your phone to search for your stereo... if u used your phone then try using the stereo to to look for your phone under the connections menu and it should work

nemo0405 said:
did all of you use your stereo to search for your phone or your phone to search for your stereo... if u used your phone then try using the stereo to to look for your phone under the connections menu and it should work
Click to expand...
Click to collapse
Sorry for my late reply.
I can't connect/pair the phone using the stereo, to bad.

Well, I have the Pioneer Stereo and what I discovered was you have to do it from the stereo. For some unknown reason it errors out from phone. Since that, I have no problems, further more it reads my text as well as incoming e-mails. Hope that help

DownNeverOut said:
Well, I have the Pioneer Stereo and what I discovered was you have to do it from the stereo. For some unknown reason it errors out from phone. Since that, I have no problems, further more it reads my text as well as incoming e-mails. Hope that help
Click to expand...
Click to collapse
Which Pioneer are you using? I'm using the F700, and for some reason it won't mute the radio when in a call. I haven't gotten time to mess around with it much though. Reading incoming texts would be great.

i bought a car kit MP3 player for my car. I paired it with my TP2 and enabled the "BT Audio" and "BT Handsfree". Outgoing calls work fine with no problems at all. But during incoming calls there is a problem. If the incoming call is from someone saved in my contacts, the BT carkit does not ring. If its from an unknown number (not saved in my contacts), it works perfectly. I tried all the tweaks and hacks in this forum but nothing worked. Anymore ideas.

nemo0405 said:
don't pair from the phone use your Radio to pair...i had the same problem with my Pioneer at first so i searched for the device from my stereo and it worked just fine and ...i hope this helps... and make sure your discovery is always on...take care!
Click to expand...
Click to collapse
x2, exact same problem with MY pioneer on 6.1 ... took me an hour to figure out how to pair it correctly, and it happened completely by accident out of frustration while I was pounding my fists into the horn haha. Now I know better...
set your phone to discoverable, then pair from the radio, confirm on the phone. good luck - Mark

qaliza said:
i bought a car kit MP3 player for my car. I paired it with my TP2 and enabled the "BT Audio" and "BT Handsfree". Outgoing calls work fine with no problems at all. But during incoming calls there is a problem. If the incoming call is from someone saved in my contacts, the BT carkit does not ring. If its from an unknown number (not saved in my contacts), it works perfectly. I tried all the tweaks and hacks in this forum but nothing worked. Anymore ideas.
Click to expand...
Click to collapse
The only thing I can think of is that maybe you have different ringtones set up for contacts and unknown contacts. Or your carkit is broken.
Hope this helps - Mark

qaliza said:
i bought a car kit MP3 player for my car. I paired it with my TP2 and enabled the "BT Audio" and "BT Handsfree". Outgoing calls work fine with no problems at all. But during incoming calls there is a problem. If the incoming call is from someone saved in my contacts, the BT carkit does not ring. If its from an unknown number (not saved in my contacts), it works perfectly. I tried all the tweaks and hacks in this forum but nothing worked. Anymore ideas.
Click to expand...
Click to collapse
RADRaze2KX said:
x2, exact same problem with MY pioneer on 6.1 ... took me an hour to figure out how to pair it correctly, and it happened completely by accident out of frustration while I was pounding my fists into the horn haha. Now I know better...
set your phone to discoverable, then pair from the radio, confirm on the phone. good luck - Mark
Click to expand...
Click to collapse
Try the cab from this thread ------> Fix for playing ringtones over bluetooth headset.
It's meant so that the actual ringtone you have set will play on the car kit. I know my car kit used to have its own ring which was... boring to say the least. Now the various ring tones set to people on my phone play through the car kit. Anyway... This MIGHT fix the issue you guys are having as well.

RADRaze2KX said:
The only thing I can think of is that maybe you have different ringtones set up for contacts and unknown contacts. Or your carkit is broken.
Hope this helps - Mark
Click to expand...
Click to collapse
Yes i do have diifferent ringtones for contacts and also different pictures. The problem is in the contacts name. When i remove the name and leave it unnamed it works fine.
Thanks for your reply..

Aaron McCarthy said:
Try the cab from this thread ------> Fix for playing ringtones over bluetooth headset.
It's meant so that the actual ringtone you have set will play on the car kit. I know my car kit used to have its own ring which was... boring to say the least. Now the various ring tones set to people on my phone play through the car kit. Anyway... This MIGHT fix the issue you guys are having as well.
Click to expand...
Click to collapse
it did not fix my problem but thanks anyway. The problem im facing is that any contact saved with a name wont be recieved on the car kit. while if its left unnamed it will work fine.

Answer VOIP calls via Bluetooth Headset or car controls?

Just switched back to Android from iOS and apparently it seems like Android\S9 does not allow answering calls via Bluetooth Headsets at all? Is there a fix or mod for this?
I'd like to answer Whatsapp, Viber, Skype type calls via the answer key on the car steering wheel same as what iOS allowed me to.
To clarify - once I answer the call on the phone, I can then talk via Bluetooth no issues. The problem is using the answer button on the car or headset to pick the call. Normal calls are not affected.
All my google-fu has returned futile as it seems this is not possible with Android yet.
I have also tried another Jabra Bluetooth headset and it is no different.
Thoughts?

No problems answering on my Malibu 2016 using connect button. Not to mention Android Auto also works fine, but of course USB chord connected. But even when NOT using AA, I can answer or disconnect with car controls just fine.

What VOIP app are you using when you mentioned that you can answer calls? Have you tired answering a Whatapp or FB call?