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  1. #1
    TI
    Guest
    Is it possible to have a two way voice conversation over bluetooth
    featured mobile phones without the use of gsm network? What is a
    typical mobile phone bluetooth range and can it be easily extended
    with insertion of an amplifier IC?
    thanks



    See More: Bluetooth phone as a walkie-talkie?




  2. #2
    simplesimon
    Guest

    Re: Bluetooth phone as a walkie-talkie?


    "TI" <[email protected]> wrote in message
    news:18a34598.0[email protected]
    > Is it possible to have a two way voice conversation over bluetooth
    > featured mobile phones without the use of gsm network? What is a
    > typical mobile phone bluetooth range and can it be easily extended
    > with insertion of an amplifier IC?
    > thanks


    Bluetooth is usually advertised as having a 10 meter range but to be honest
    I've never got it to work *reliably* over about 5 meters. I dont see much of
    a market for walkie-talkies with a 15 foot range :-)

    simon





  3. #3
    spammy
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    "simplesimon" <[email protected]> wrote in message
    news:[email protected]
    >
    > "TI" <[email protected]> wrote in message
    > news:[email protected]
    > > Is it possible to have a two way voice conversation over bluetooth
    > > featured mobile phones without the use of gsm network? What is a
    > > typical mobile phone bluetooth range and can it be easily extended
    > > with insertion of an amplifier IC?
    > > thanks

    >
    > Bluetooth is usually advertised as having a 10 meter range but to be

    honest
    > I've never got it to work *reliably* over about 5 meters. I dont see much

    of
    > a market for walkie-talkies with a 15 foot range :-)
    >


    i guess class 2 (100m) devices would change that. although my t610 can reach
    a BT signal from a floor above so even a 15ft range walkie talkie would work
    well as an internal intercom thing...

    i just dont think the mobile operators would allow the feature to be
    included in a phone. i can imagine it taking a chunk of their revenue.

    --
    GamerTag: spams
    Sponsor me for the Flora London Marathon!
    Visit http://www.justgiving.com/shak to pledge/donate!





  4. #4
    Tim Mitchell
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    In article <[email protected]>, spammy
    <[email protected]> writes
    >"simplesimon" <[email protected]> wrote in message
    >news:[email protected]
    >>
    >> "TI" <[email protected]> wrote in message
    >> news:[email protected]
    >> > Is it possible to have a two way voice conversation over bluetooth
    >> > featured mobile phones without the use of gsm network? What is a
    >> > typical mobile phone bluetooth range and can it be easily extended
    >> > with insertion of an amplifier IC?
    >> > thanks

    >>
    >> Bluetooth is usually advertised as having a 10 meter range but to be

    >honest
    >> I've never got it to work *reliably* over about 5 meters. I dont see much

    >of
    >> a market for walkie-talkies with a 15 foot range :-)
    >>

    >
    >i guess class 2 (100m) devices would change that. although my t610 can reach
    >a BT signal from a floor above so even a 15ft range walkie talkie would work
    >well as an internal intercom thing...
    >
    >i just dont think the mobile operators would allow the feature to be
    >included in a phone. i can imagine it taking a chunk of their revenue.
    >

    Motorola make a cellular phone which can also be used as a "walkie
    talkie" to a same-brand phone, i.e. back-to-back operation without
    involving the network. It doesn't use bluetooth for this though.
    --
    Tim Mitchell



  5. #5
    Eddy
    Guest

    Re: Bluetooth phone as a walkie-talkie?


    "TI" <[email protected]> wrote in message
    news:[email protected]
    > Is it possible to have a two way voice conversation over bluetooth
    > featured mobile phones without the use of gsm network? What is a
    > typical mobile phone bluetooth range and can it be easily extended
    > with insertion of an amplifier IC?
    > thanks


    You can get PMR radios for next to nothing, you would really be better with
    on of them!.

    Eddy





  6. #6
    Ivor Jones
    Guest

    Re: Bluetooth phone as a walkie-talkie?


    "spammy" <[email protected]> wrote in message
    news:[email protected]
    > "simplesimon" <[email protected]> wrote in message
    > news:[email protected]
    > >
    > > "TI" <[email protected]> wrote in message
    > > news:[email protected]
    > > > Is it possible to have a two way voice conversation over bluetooth
    > > > featured mobile phones without the use of gsm network? What is a
    > > > typical mobile phone bluetooth range and can it be easily extended
    > > > with insertion of an amplifier IC?
    > > > thanks

    > >
    > > Bluetooth is usually advertised as having a 10 meter range but to be

    > honest
    > > I've never got it to work *reliably* over about 5 meters. I dont see

    much
    > of
    > > a market for walkie-talkies with a 15 foot range :-)
    > >

    >
    > i guess class 2 (100m) devices would change that. although my t610 can

    reach
    > a BT signal from a floor above so even a 15ft range walkie talkie would

    work
    > well as an internal intercom thing...
    >
    > i just dont think the mobile operators would allow the feature to be
    > included in a phone. i can imagine it taking a chunk of their revenue.


    I don't see the point when 446MHz licence-free walkie talkies can be had
    for 30 quid or so now.

    Ivor





  7. #7
    Julio Laker
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    > Bluetooth is usually advertised as having a 10 meter range but to be honest
    > I've never got it to work *reliably* over about 5 meters. I dont see much of
    > a market for walkie-talkies with a 15 foot range :-)
    >
    > simon


    The SE Z1010 is supposed to have a range of 100m for bluetooth, that
    said my SE P800 is right next to my laptop and the laptop never seems
    to pick it up!!

    Good concept, as with most things though seriously unreliable, even
    when paired with another device!



  8. #8
    Tim Auton
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    [email protected] (TI) wrote:
    >Is it possible to have a two way voice conversation over bluetooth
    >featured mobile phones without the use of gsm network?


    Typically, no. 2-way audio over bluetooth is perfectly possible
    (that's how bluetooth headsets work), but it's generally not supported
    by phone handsets. I don't know if that's a limitation of their
    bluetooth chipsets, but it may just be a question of firmware.

    >What is a
    >typical mobile phone bluetooth range and can it be easily extended
    >with insertion of an amplifier IC?


    Most bluetooth phones have a range of ~10m (class 2). You might get
    some class 1 phones with a range of ~100m, but I doubt they are very
    common. As ever with quoted ranges for rf kit that's best-case with
    nothing between you and the receiver, real world range is usually
    worse.

    I think it's more likely that phone manufacturers don't think people
    want that capability (and with a ~10m range I can see why - you could
    just shout!), rather than it being technically very difficult to do.


    Tim
    --
    Love is a travelator.



  9. #9
    Benedict Addis
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    Bluetooth is a non-starter for this application, but what about PTT (push to
    talk) over GPRS?

    Benedict.
    --
    Add the 'co' to reply
    www.itchest.co.uk
    Tel: 0870 162 0840





  10. #10
    Martin Stausberg
    Guest

    Re: Bluetooth phone as a walkie-talkie?


    "Benedict Addis" <[email protected]> schrieb im Newsbeitrag news:[email protected]
    > Bluetooth is a non-starter for this application, but what about PTT (push to
    > talk) over GPRS?
    >

    i have tried "Visual communicator" for symbian OS mobiles. it doesnt work in duplex mode, as it
    sends audio files with max. 10sec length, there is also a chat function. In order to establish the
    conversation both phones need to have the software running.
    At the moment its doesnt make sense to use it, unless you are in a foreign country which charges
    heavily for roaming. Hopefully costs for data will be cut by providers in the near future!

    Regards
    Martin



  11. #11
    Al
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    Of course it is.
    While watching "Cold Case" on television last night, they appeared to be
    using the SE 610(616) as a ptt or walkie talkie.
    Television would never stretch the truth, so it must be doable.



    TI wrote:

    > Is it possible to have a two way voice conversation over bluetooth
    > featured mobile phones without the use of gsm network? What is a
    > typical mobile phone bluetooth range and can it be easily extended
    > with insertion of an amplifier IC?
    > thanks




  12. #12
    Carl.
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    "Ivor Jones" <[email protected]> wrote in message
    news:[email protected]
    >
    > "spammy" <[email protected]> wrote in message
    > news:[email protected]
    > > "simplesimon" <[email protected]> wrote in message
    > > news:[email protected]
    > > >
    > > > "TI" <[email protected]> wrote in message
    > > > news:[email protected]
    > > > > Is it possible to have a two way voice conversation over bluetooth
    > > > > featured mobile phones without the use of gsm network? What is a
    > > > > typical mobile phone bluetooth range and can it be easily extended
    > > > > with insertion of an amplifier IC?
    > > > > thanks
    > > >
    > > > Bluetooth is usually advertised as having a 10 meter range but to be

    > > honest
    > > > I've never got it to work *reliably* over about 5 meters. I dont see

    > much
    > > of
    > > > a market for walkie-talkies with a 15 foot range :-)
    > > >

    > >
    > > i guess class 2 (100m) devices would change that. although my t610 can

    > reach
    > > a BT signal from a floor above so even a 15ft range walkie talkie would

    > work
    > > well as an internal intercom thing...
    > >
    > > i just dont think the mobile operators would allow the feature to be
    > > included in a phone. i can imagine it taking a chunk of their revenue.

    >
    > I don't see the point when 446MHz licence-free walkie talkies can be had
    > for 30 quid or so now.


    Unless you don't want to carry around yet another device.


    ---
    Update your PC at http://windowsupdate.microsoft.com
    Checked by AVG anti-virus system (http://www.grisoft.com).
    Version: 6.0.614 / Virus Database: 393 - Release Date: 3/5/2004





  13. #13
    matt weber
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    On 7 Mar 2004 22:53:15 -0800, [email protected] (TI) wrote:

    >Is it possible to have a two way voice conversation over bluetooth
    >featured mobile phones without the use of gsm network? What is a
    >typical mobile phone bluetooth range and can it be easily extended
    >with insertion of an amplifier IC?

    10 meters. Increasing the power output of a Bluetooth Transmitter
    would probably violate the regulations involving the frequencies in
    use, not to mention that increased output = interference for other
    users. I think Bluetooth is limited to 1 milliwatt.





  14. #14
    matt weber
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    On Mon, 8 Mar 2004 10:40:58 +0000, Tim Mitchell
    <[email protected]> wrote:

    >In article <[email protected]>, spammy
    ><[email protected]> writes
    >>"simplesimon" <[email protected]> wrote in message
    >>news:[email protected]
    >>>
    >>> "TI" <[email protected]> wrote in message
    >>> news:[email protected]
    >>> > Is it possible to have a two way voice conversation over bluetooth
    >>> > featured mobile phones without the use of gsm network? What is a
    >>> > typical mobile phone bluetooth range and can it be easily extended
    >>> > with insertion of an amplifier IC?
    >>> > thanks
    >>>
    >>> Bluetooth is usually advertised as having a 10 meter range but to be

    >>honest
    >>> I've never got it to work *reliably* over about 5 meters. I dont see much

    >>of
    >>> a market for walkie-talkies with a 15 foot range :-)
    >>>

    >>
    >>i guess class 2 (100m) devices would change that. although my t610 can reach
    >>a BT signal from a floor above so even a 15ft range walkie talkie would work
    >>well as an internal intercom thing...
    >>
    >>i just dont think the mobile operators would allow the feature to be
    >>included in a phone. i can imagine it taking a chunk of their revenue.
    >>

    >Motorola make a cellular phone which can also be used as a "walkie
    >talkie" to a same-brand phone, i.e. back-to-back operation without
    >involving the network. It doesn't use bluetooth for this though.


    If you are talking about the NEXTEL products, they look like a walkie
    talkie, they behaves like one, but they aren't. If the Nextel
    network goes down, it works just like any other mobile when the
    network is down. Not at all!!!



  15. #15
    TI
    Guest

    Re: Bluetooth phone as a walkie-talkie?

    Tim Auton <[email protected][groupSexWithoutTheY]> wrote in message news:<[email protected]>...
    > [email protected] (TI) wrote:
    > >Is it possible to have a two way voice conversation over bluetooth
    > >featured mobile phones without the use of gsm network?

    >
    > Typically, no. 2-way audio over bluetooth is perfectly possible
    > (that's how bluetooth headsets work), but it's generally not supported
    > by phone handsets. I don't know if that's a limitation of their
    > bluetooth chipsets, but it may just be a question of firmware.
    >
    > >What is a
    > >typical mobile phone bluetooth range and can it be easily extended
    > >with insertion of an amplifier IC?

    >
    > Most bluetooth phones have a range of ~10m (class 2). You might get
    > some class 1 phones with a range of ~100m, but I doubt they are very
    > common. As ever with quoted ranges for rf kit that's best-case with
    > nothing between you and the receiver, real world range is usually
    > worse.
    >
    > I think it's more likely that phone manufacturers don't think people
    > want that capability (and with a ~10m range I can see why - you could
    > just shout!), rather than it being technically very difficult to do.
    >
    >
    > Tim


    Thanks everyone
    I understand now as it is there is no option in your mobile under
    bluetooth menu to just enter some Piconet with another bluetooth
    mobile(instead of your headset) in say 100 m range and start talking
    at least in half duplex? I do not really see why because you can
    certainly exchange 'business cards' between the two and all it would
    need is to send the voice coded signal to that bluetooth port(it has
    enough bandwith for real time voice guaranteed )
    Yes the companies make mobiles to suit operators specs but they also
    should make the phones customers would like to have and having a
    walkie talkie at no extra cost sounds great! Perhaps a little Java
    program could fix that...



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