I wonder if anyone knows whether it is possible to tell whether a call was made directly through a mobile phone or using a bluetooth headset. This is, of course, relevant when a person talking on a phone while driving claims they were using a headset rather than their hands (which would be an offence).
In the particular case I am looking at it is a Nokia 6303 classic with a bluetooth headset. Bluetooth is on, visible to all, and paired with the headset. However, the headset has the auto-connection set negative so permission would have to be granted to use the headset on a call.
This is, of course, relevant when a person talking on a phone while driving claims they were using a headset rather than their hands (which would be an offence).
From your comments it isn't clear whether there is a handset cradle in use to support the handset whilst the user is driving, which opens up suggestions the handset might be hand-held, in a pocket or laying somewhere in the vehicle?
If there is a handset cradle and it is linked into the vehicle power system, providing a power booster for the handset, then that could be a useful piece of evidence too in relation to RRM skip indicator/protocol discriminator identifiers. In other words there might be a record available that could be used to illustrate why the handset is not being hand-held.
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In the particular case I am looking at it is a Nokia 6303 classic with a bluetooth headset. Bluetooth is on, visible to all, and paired with the headset. However, the headset has the auto-connection set negative so permission would have to be granted to use the headset on a call.
The Nokia datahsheet for this handset identifies three models of Bluetooth headset for use with the Nokia 6303
Nokia Bluetooth Headset BH-600
Nokia Bluetooth Headset BH-606
Nokia Bluetooth Headset BH-900
Perhaps establish the bluetooth headset make/model and whether there are any compatibility issues that might need to be investigated. For instance, can audibility of a conversation only occur
- only through headset when paired and selected
- through the handset even if headset is paired
- through headset/handset at the same time (although feedback might be a problem)
I suspect that some practical tests might be worth considering.
In fairness, Greg, although the Nokia manual states those Nokia Bluetooth headsets are compatible, there are almost countless other (including vehicle handsfree systems) that will/can/should work equally as well (and probably better in some cases).
In fairness, Greg, although the Nokia manual states those Nokia Bluetooth headsets are compatible, there are almost countless other (including vehicle handsfree systems) that will/can/should work equally as well (and probably better in some cases).
Very fair point, Steve, there are dozens and dozens. But it is not the point I am making, which is about deviation away from the handset manufacturer's specified bluetooth models/devices. I have seen generic bluetooth headsets that can cause slight functional variation. It is this I am suggesting to the original poster that s/he may care to investigate.
Hmmm…
a couple of personal notes regarding usage
I never ever used manufacturer recommended bluetooth earpieces. Right now I have a BlueAnt 9zi. They make no telephones.
I never ever used a cradle for my cell phone.
I almost always plug in my phone to a charger when in the car.
Is there a last paired & connection time on the phone? I know on my Samsung it tells me "pairing date" and "last connection".
Thank you for your comments. In the particular case to which I refer the bluetooth headset was a Jabra BT4010 which is designed to work with Bluetooth mobile phones.
Is there a last paired & connection time on the phone? I know on my Samsung it tells me "pairing date" and "last connection".
This is really the sort of information that could be invaluable in such a situation but I could not find similar information on the Nokia. Yet if Samsung holds it I wonder if it is not hidden somewhere in the depths of other makes.
It would, but there are a ton, nay, 2 tons of presumptions in my note.
The specific OS, carrier, etc. all US specs.
I only worked with… <gulp> Verizon Wireless telephones so far. oops
It is possible that the information is hidden there somewhere.
Sherlock I use a 6303 and it doesn't have the facility in the <options> menu to set a date/time. I agree with jhup and you that date/time could be useful evidence.
Have you considered the flasher boxes or seeing if Oxygen, Cellebrite, XRY etc about extracting and harvesting
- last used bluetooth devices?
- clock details (if applicable)?
I can see there is a potential for my observations to be self-defeating because it might not be possible in your matter to show bluetooth device date/time connectivity captured from the device. Depending on your case, might be worth the additional effort.
The older Nokias had, at the least, the Bluetooth MAC addresses in the normal PM dump - but the ones I'm thinking of were all DCT-4 handsets, the 6303 is BB5 and the PM reads tend to be less interesting - definitely worth a look though.