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  1. #1
    loudandclear
    Guest
    Does anyone know nextel i930 will be GSM with dual band
    iden?(iden/GSM)
    I do know nextel is based on TDMA but I was looking at i930 on ebay
    and it says iden/GSM.
    The reason why I am asking is I've been using AT&T over 9 years and
    their service was improved when they switched TDMA to GSM.
    I am trying to get either i860 or i930 before christmas.
    i860 will be GSM also?
    Thanks in advance.



    See More: Nextel i930 will be GSM?




  2. #2
    Steven J Sobol
    Guest

    Re: Nextel i930 will be GSM?

    In alt.cellular loudandclear <[email protected]> wrote:
    > Does anyone know nextel i930 will be GSM with dual band
    > iden?(iden/GSM)
    > I do know nextel is based on TDMA but I was looking at i930 on ebay
    > and it says iden/GSM.
    > The reason why I am asking is I've been using AT&T over 9 years and
    > their service was improved when they switched TDMA to GSM.
    > I am trying to get either i860 or i930 before christmas.
    > i860 will be GSM also?
    > Thanks in advance.


    I believe the GSM is for international roaming and will not include the US
    GSM bands...

    --
    JustThe.net Internet & New Media Services, http://JustThe.net/
    Steven J. Sobol, Geek In Charge / 888.480.4NET (4638) / [email protected]
    PGP Key available from your friendly local key server (0xE3AE35ED)
    Apple Valley, California Nothing scares me anymore. I have three kids.



  3. #3
    Scott Stephenson
    Guest

    Re: Nextel i930 will be GSM?


    "loudandclear" <[email protected]> wrote in message
    news:[email protected]
    > Does anyone know nextel i930 will be GSM with dual band
    > iden?(iden/GSM)
    > I do know nextel is based on TDMA but I was looking at i930 on ebay
    > and it says iden/GSM.
    > The reason why I am asking is I've been using AT&T over 9 years and
    > their service was improved when they switched TDMA to GSM.
    > I am trying to get either i860 or i930 before christmas.
    > i860 will be GSM also?
    > Thanks in advance.


    Nextel has never been a TDMA carrier- always iDen. The GSM is for
    international use only.





  4. #4
    Joseph
    Guest

    Re: Nextel i930 will be GSM?

    On Sun, 11 Jul 2004 09:36:46 -0600, "Scott Stephenson"
    <[email protected]> wrote:

    >
    >"loudandclear" <[email protected]> wrote in message
    >news:[email protected]
    >> Does anyone know nextel i930 will be GSM with dual band
    >> iden?(iden/GSM)
    >> I do know nextel is based on TDMA but I was looking at i930 on ebay
    >> and it says iden/GSM.
    >> The reason why I am asking is I've been using AT&T over 9 years and
    >> their service was improved when they switched TDMA to GSM.
    >> I am trying to get either i860 or i930 before christmas.
    >> i860 will be GSM also?
    >> Thanks in advance.

    >
    >Nextel has never been a TDMA carrier- always iDen. The GSM is for
    >international use only.


    iDen is a TDMA technology just as is GSM and IS-136 so called "TDMA."
    TDMA is more than one mobile interface.
    - - - - - - - - - - - - - - - - - - - - - - - - - -
    remove NONO from .NONOcom to reply



  5. #5
    Scott Stephenson
    Guest

    Re: Nextel i930 will be GSM?


    "Joseph" <[email protected]> wrote in message
    news:[email protected]

    >
    > iDen is a TDMA technology just as is GSM and IS-136 so called "TDMA."
    > TDMA is more than one mobile interface.
    > - - - - - - - - - - - - - - - - - - - - - - - - - -



    iDen is high capacity digital trunked radio system that uses some TDMA
    channel access methodology in its design. TDMA is not trunked radio. iDen
    is not TDMA.





  6. #6
    Steven J Sobol
    Guest

    Re: Nextel i930 will be GSM?

    In alt.cellular Scott Stephenson <[email protected]> wrote:

    > iDen is high capacity digital trunked radio system that uses some TDMA
    > channel access methodology in its design. TDMA is not trunked radio. iDen
    > is not TDMA.


    I thought iDen was Motorola's brand name for the *combination* of the trunked
    radio system and the cellular interface. However, I'm not a big Nextel
    follower and ICBW...


    --
    JustThe.net Internet & New Media Services, http://JustThe.net/
    Steven J. Sobol, Geek In Charge / 888.480.4NET (4638) / [email protected]
    PGP Key available from your friendly local key server (0xE3AE35ED)
    Apple Valley, California Nothing scares me anymore. I have three kids.



  7. #7
    Scott Stephenson
    Guest

    Re: Nextel i930 will be GSM?


    "Steven J Sobol" <[email protected]> wrote in message
    news:[email protected]
    > In alt.cellular Scott Stephenson <[email protected]> wrote:
    >
    > > iDen is high capacity digital trunked radio system that uses some TDMA
    > > channel access methodology in its design. TDMA is not trunked radio.

    iDen
    > > is not TDMA.

    >
    > I thought iDen was Motorola's brand name for the *combination* of the

    trunked
    > radio system and the cellular interface. However, I'm not a big Nextel
    > follower and ICBW...
    >
    >


    You're pretty much on track, Steve. IIRC, iDen actually borrows protocols
    from more than the TDMA arena. Fact is, it is not true cellular (wanna see
    someone go ballistic- go over to the ATTWS group and call Nextel a cell
    phone. John S will hit the roof ).

    To add further confusion to the mix, Nextel has actually made strides to
    gather CDMA technology, not TDMA. They bought rights to some Qualcomm CDMA
    technology a few years back, and from what I can gather from some articles
    that were posted in alt.cellular.nextel a while back, are using PCS spectrum
    to drive their wireless broadband project. If iDen were a true TDMA
    platform, it would make some of these investments rather suspect, as it
    would be much more cost efficient to stick with native technology.





  8. #8
    Joseph
    Guest

    Re: Nextel i930 will be GSM?

    On Sun, 11 Jul 2004 10:21:36 -0600, "Scott Stephenson"
    <[email protected]> wrote:

    >
    >"Joseph" <[email protected]> wrote in message
    >news:[email protected]
    >
    >>
    >> iDen is a TDMA technology just as is GSM and IS-136 so called "TDMA."
    >> TDMA is more than one mobile interface.
    >> - - - - - - - - - - - - - - - - - - - - - - - - - -

    >
    >
    >iDen is high capacity digital trunked radio system that uses some TDMA
    >channel access methodology in its design. TDMA is not trunked radio. iDen
    >is not TDMA.


    You just said it is! It uses some TDMA channel access methodology.
    That it's not exactly GSM or IS-136 does not negate that it has TDMA
    as part of its underpinnings. Who gives a crap whether it's SMR.
    Don't be obtuse.
    >


    - - - - - - - - - - - - - - - - - - - - - - - - - -
    remove NONO from .NONOcom to reply



  9. #9
    John Eckart
    Guest

    Re: Nextel i930 will be GSM?

    "Joseph" <[email protected]> wrote in message =
    news:[email protected]
    > On Sun, 11 Jul 2004 10:21:36 -0600, "Scott Stephenson"
    > <[email protected]> wrote:
    >=20
    > >
    > >"Joseph" <[email protected]> wrote in message
    > >news:[email protected]
    > >
    > >>
    > >> iDen is a TDMA technology just as is GSM and IS-136 so called =

    "TDMA."
    > >> TDMA is more than one mobile interface.
    > >> - - - - - - - - - - - - - - - - - - - - - - - - - -

    > >
    > >
    > >iDen is high capacity digital trunked radio system that uses some =

    TDMA
    > >channel access methodology in its design. TDMA is not trunked radio. =

    iDen
    > >is not TDMA.

    >=20
    > You just said it is! It uses some TDMA channel access methodology.
    > That it's not exactly GSM or IS-136 does not negate that it has TDMA
    > as part of its underpinnings. Who gives a crap whether it's SMR.
    > Don't be obtuse.


    Even though iDEN and GSM is based on TDMA technology, it doesn't make it =
    TDMA. You can't use a "TDMA" phone on an iDEN and/or GSM network. The =
    newer 3GSM is based on CDMA technology.

    The i930 is a dual-band iDEN/GSM phone which should be out by the end of =
    this year. I don't have any specific information on the GSM side of the =
    phone or if it is multimode. The i860 is iDEN only.



  10. #10
    RÝbert M.
    Guest

    Re: Nextel i930 will be GSM?

    In article <[email protected]>,
    "John Eckart" <[email protected]> wrote:

    >
    > Even though iDEN and GSM is based on TDMA technology, it doesn't make it
    > TDMA. You can't use a "TDMA" phone on an iDEN and/or GSM network. The newer
    > 3GSM is based on CDMA technology.
    >
    > The i930 is a dual-band iDEN/GSM phone which should be out by the end of this
    > year. I don't have any specific information on the GSM side of the phone or
    > if it is multimode. The i860 is iDEN only.


    Try this:

    http://www.engadget.com/entry/8388529185339485/

    and

    http://smartphone.modaco.com/viewtopic.php?t=110706



  11. #11
    gopi
    Guest

    Re: Nextel i930 will be GSM?

    "John Eckart" <[email protected]> wrote in message news:<[email protected]>...
    > "Joseph" <[email protected]> wrote in message
    > news:[email protected]
    > > On Sun, 11 Jul 2004 10:21:36 -0600, "Scott Stephenson"
    > > <[email protected]> wrote:
    > > >> iDen is a TDMA technology just as is GSM and IS-136 so called

    > "TDMA."

    <snip>
    > Even though iDEN and GSM is based on TDMA technology, it doesn't make it
    > TDMA. You can't use a "TDMA" phone on an iDEN and/or GSM network. The
    > newer 3GSM is based on CDMA technology.


    It's been explained in this thread before, but is apparently still
    being ignored.

    TDMA, Time Division Multiple Access, is a modulation technique. FM and
    AM are also modulation techniques.

    Many people _incorrectly_ use "TDMA" when they mean "The IS-136
    standard, which uses TDMA modulation."

    The term TDMA does _not_ refer to any single, specific standard. It is
    a generic term. I can call my phone a "GSM phone" or a "TDMA phone" or
    a "cellular phone." All of those are accurate.



  12. #12
    dep_blueman
    Guest

    Re: Nextel i930 will be GSM?

    The i930 will be iDEN+GSM. However, it will not include the US GSM
    freq. maps. So, you can only use it for GSM calls outside of the USA.

    In addition, Nextel does not have any roaming agreements with US GSM
    carriers. Beyond that, I would expect that you would be locked out of
    roaming on GSM when there is an iDEN carrier present such as in parts
    of Mexico, Asia, and the middle east.

    -D

    [email protected] (loudandclear) wrote in message news:<[email protected]>...
    > Does anyone know nextel i930 will be GSM with dual band
    > iden?(iden/GSM)
    > I do know nextel is based on TDMA but I was looking at i930 on ebay
    > and it says iden/GSM.
    > The reason why I am asking is I've been using AT&T over 9 years and
    > their service was improved when they switched TDMA to GSM.
    > I am trying to get either i860 or i930 before christmas.
    > i860 will be GSM also?
    > Thanks in advance.




  13. #13
    matt weber
    Guest

    Re: Nextel i930 will be GSM?

    On 14 Jul 2004 07:26:29 -0700, [email protected] (gopi) wrote:

    >"John Eckart" <[email protected]> wrote in message news:<[email protected]>...
    >> "Joseph" <[email protected]> wrote in message
    >> news:[email protected]
    >> > On Sun, 11 Jul 2004 10:21:36 -0600, "Scott Stephenson"
    >> > <[email protected]> wrote:
    >> > >> iDen is a TDMA technology just as is GSM and IS-136 so called

    >> "TDMA."

    ><snip>
    >> Even though iDEN and GSM is based on TDMA technology, it doesn't make it
    >> TDMA. You can't use a "TDMA" phone on an iDEN and/or GSM network. The
    >> newer 3GSM is based on CDMA technology.

    >
    >It's been explained in this thread before, but is apparently still
    >being ignored.
    >
    >TDMA, Time Division Multiple Access, is a modulation technique.


    Wrong. TDMA say nothing, NADA, ZILCH about modulation, what is says is
    the spectrum is time shared amoung the users. Makes no difference what
    modulation scheme they use, as long as they time share it. In the case
    of D-AMPS, there are time slots for 3 calls in the channell, in GSM
    there are 8 x 217 time slots in a channel, and that is usually 8
    calls, but with HFR can be 16.

    GSM and D-AMPS both operate by time sharing the channel, i.e. only one
    phone is broadcasting at any given moment on a specific channel for a
    specific BTS. Phone company used to time division mulitplexing and
    used PCM modulation, which bears no similarity to GSM or IS-136.

    CDMA is a digital analog of synchrous detection, and relies on the
    fact that when recovered using the speading code, all calls except the
    one you are interested in appears to be random noise. Multiple phone
    are in fact transmitting in the same channel simultaneous, something
    that neither GSM or D-AMPS/IS-136 can do.


    As for actual modulation, CDMA, IS-136 and GSM all use variations on
    PSK (phase shift keying)..
    FM and
    >AM are also modulation techniques.
    >
    >Many people _incorrectly_ use "TDMA" when they mean "The IS-136
    >standard, which uses TDMA modulation."
    >
    >The term TDMA does _not_ refer to any single, specific standard. It is
    >a generic term. I can call my phone a "GSM phone" or a "TDMA phone" or
    >a "cellular phone." All of those are accurate.





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