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  1. #1
    John W. Hess
    Guest
    Good evening. I have for the past 3 months have had to call Cingular to
    manually download irdb updates. Each time I call they say it didn't go
    through and they manually do it. I asked if it was supposed to happen
    automatically and they said yes. I asked if this could be a sim card issue
    and they said possibly. Does anyone have thoughts on this? I am using a
    6340i and a motv400. Thanks.

    --
    John W. Hess
    Senior Associate
    Evaluation & Training

    De Witt & Associates
    Suite 110
    700 Godwin Avenue
    Midland Park, NJ 07432

    Phone: (973) 664-1963
    Fax: (201) 447-1187
    E-Mail: [email protected]

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  2. #2
    Todd Allcock
    Guest

    Re: problems with receiving irdb updates sim card issue?

    "John W. Hess" <[email protected]> wrote in message news:<[email protected]>...
    > Good evening. I have for the past 3 months have had to call Cingular to
    > manually download irdb updates.



    How often are you expecting updates?

    When I was a Cingular customer (on TDMA, so I realize the systems are
    different) I rarely if ever got an update without begging them for it.
    I reserved those times for when I changed rate plans or phones.

    > Each time I call they say it didn't go
    > through and they manually do it. I asked if it was supposed to happen
    > automatically and they said yes. I asked if this could be a sim card issue
    > and they said possibly. Does anyone have thoughts on this? I am using a
    > 6340i and a motv400.


    I'm not sure why you're worried about it. I've had to politely
    explain to a CSR that I wasn't going to pay roaming charges in, say,
    San Diego, for example, because it wasn't my fault the phone with the
    outdated IRDB locked onto Verizon instead of AT&T, but other than
    that, I could care less if my phone says "Cingular", "Cingular
    Extend", or "Tex 'n Edna Boil's Cellular System and Curio Emporium".



  3. #3
    Andrew Shepherd
    Guest

    Re: problems with receiving irdb updates sim card issue?

    "John W. Hess" <[email protected]> wrote in message news:<[email protected]>...
    > Good evening. I have for the past 3 months have had to call Cingular to
    > manually download irdb updates. Each time I call they say it didn't go
    > through and they manually do it. I asked if it was supposed to happen
    > automatically and they said yes. I asked if this could be a sim card issue
    > and they said possibly. Does anyone have thoughts on this? I am using a
    > 6340i and a motv400. Thanks.


    GSM does not use mobile-side PRLs or IRDBs. The roaming intelligence
    is network-side. As I understand it, the only network information
    contained w/in the handset or the SIM is a list of MCC-MNC
    associations w/ carrier-specific or roaming banners for the handset
    display.

    Thus, an IRDB update for the TDMA component of your Nokia 6340i may be
    required. For your Moto V400, it is entirely irrelevant.

    As Cingular SIMs remove manual network selection capability, a mobile
    will attempt to acquire the native Cingular GSM network, then hang on
    for dear life. In the absence of Cingular, the handset will query the
    compatible & available GSM network(s) to determine if it is permitted
    to roam in that particular Location Area. If more than one compatible
    network is present & will permit roaming, then the mobile should
    automatically select the strongest received BCCH.

    User intervention for manual network selection is one of the wonderful
    flexibilities of GSM. It really is a shame, however, that Cingular
    corrupts that feature. And, for that reason precisely, I will never
    use Cingular GSM.

    Andrew
    --
    Andrew Shepherd
    [email protected]
    [email protected]
    http://www.wirelesswavelength.com/



  4. #4
    Todd Allcock
    Guest

    Re: problems with receiving irdb updates sim card issue?

    [email protected] (Andrew Shepherd) wrote in message news:<[email protected]>...

    > User intervention for manual network selection is one of the wonderful
    > flexibilities of GSM. It really is a shame, however, that Cingular
    > corrupts that feature. And, for that reason precisely, I will never
    > use Cingular GSM.


    While that might be a minor hassle for international roamers, why is
    the loss of manual selection a problem in the US? Rarely, if ever,
    will you actually get a "choice" anyway. I use T-Mo, and anytime
    multiple carriers are available only the one with a roaming agreement
    will allow themselves to be selected.

    With the consolidation of wireless, and the division into two "camps"
    (CDMA and GSM) it's not like any customer in the US will ever have two
    non-native GSM carriers to choose from if/when the Cingular
    acquisition of ATTWS completes! ;-)



  5. #5
    Andrew Shepherd
    Guest

    Re: problems with receiving irdb updates sim card issue?

    [email protected] (Todd Allcock) wrote in message
    > While that might be a minor hassle for international roamers, why is
    > the loss of manual selection a problem in the US? Rarely, if ever,
    > will you actually get a "choice" anyway. I use T-Mo, and anytime
    > multiple carriers are available only the one with a roaming agreement
    > will allow themselves to be selected.


    Point well taken, Todd.

    Only three years ago, no major markets had any coincident GSM
    networks, period! As such, network selection was purely academic.

    Thus, lack of manual network selection is currently a liability for
    Cingular GSM users, as Cingular & AT&TWS have both essentially given
    each other's subs the run of the house. But 12 to 18 months from now
    -- once the merger has been consummated, the networks have been
    integrated -- network selection will once again boil down to either
    Cingular-AT&TWS or T-Mobile. And you can rest assured that
    Cingular-AT&TWS will not request T-Mobile roaming in Location Areas
    where it also has footprint. But, for the time being, AT&TWS subs
    have it better than Cingular subs, as AT&TWS users can still manually
    select Cingular GSM whenever, wherever they please.

    Regarding international roaming, I highly doubt that Cingular has
    incorporated into its SIMs network priority criteria for outside North
    America. As such, in the absence of Cingular, the automatic network
    selection should register w/ the strongest received BCCH. I still
    would prefer the ability to select the network manually based upon
    knowledge of certain standards: roaming rates, GPRS data
    capabilities, frequency deployment (850 MHz, 900 MHz, 1800 MHz, 1900
    MHz). But, since Cingular assuredly charges the same exorbitant
    international roaming rates regardless of whether the roaming network
    is Vodafone, Orange, KPN, Telefonica Moviles, et al., the Cingular sub
    -- though he/she cannot manually select the preferred network -- is
    monetarily affected the same nonetheless.

    > With the consolidation of wireless, and the division into two "camps"
    > (CDMA and GSM) it's not like any customer in the US will ever have two
    > non-native GSM carriers to choose from if/when the Cingular
    > acquisition of ATTWS completes! ;-)


    And, admittedly, IS-41 (AMPS, IS-136 TDMA, CDMA) users have no manual
    network selection capability at the mobile-level at all. They are
    entirely at the mercy of the PRL/IRDB priority -- though many of us
    know of the various NAM or SID programming loopholes.

    Andrew
    --
    Andrew Shepherd
    [email protected]
    [email protected]
    http://www.wirelesswavelength.com/



  6. #6
    bones boy
    Guest

    Re: problems with receiving irdb updates sim card issue?

    On 19 May 2004 12:18:15 -0700, [email protected] (Andrew Shepherd) wrote:

    >
    >User intervention for manual network selection is one of the wonderful
    >flexibilities of GSM. It really is a shame, however, that Cingular
    >corrupts that feature. And, for that reason precisely, I will never
    >use Cingular GSM.


    You do realize, that by using an unbranded GSM phone with a Cingular
    SIM, you do get full network selection capabilities? The restriction
    is in the SIM, not the phone...



  7. #7
    Jason Cothran
    Guest

    Re: problems with receiving irdb updates sim card issue?


    "bones boy" <[email protected]> wrote in message
    news:[email protected]...
    | On 19 May 2004 12:18:15 -0700, [email protected] (Andrew Shepherd) wrote:
    |
    | >
    | >User intervention for manual network selection is one of the wonderful
    | >flexibilities of GSM. It really is a shame, however, that Cingular
    | >corrupts that feature. And, for that reason precisely, I will never
    | >use Cingular GSM.
    |
    | You do realize, that by using an unbranded GSM phone with a Cingular
    | SIM, you do get full network selection capabilities? The restriction
    | is in the SIM, not the phone...

    Not entirely true. It is correct that the restriction is on the SIm and not
    the phone, but Cingular has my SIM locked so that I cannot "roam" onto
    another carrier in my home area. I can only select a different network when
    outside my area.





  8. #8
    XFF
    Guest

    Re: problems with receiving irdb updates sim card issue?

    [email protected] (Todd Allcock) wrote in message news:<[email protected]>...

    > With the consolidation of wireless, and the division into two "camps"
    > (CDMA and GSM) it's not like any customer in the US will ever have two
    > non-native GSM carriers to choose from if/when the Cingular
    > acquisition of ATTWS completes! ;-)


    Not entirely true. In CMA667 for instance there are currently 4 GSM
    carriers to choose from: Cingular, AT&TWS, T-Mobile, and DCEL. Even
    after the Cingular/AT&TWS merger there are 3 (or at least 2
    non-native) GSM carriers left.

    There are some other markets where
    Cingular/AT&TWS/T-Mobile/DCEL/WWCA/etc. overlap and 3 or more GSM
    carriers are present.



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