Why can't I just swap SIMs?

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Ted - 03 Nov 2005 23:30 GMT

I have two Cingular 6340is. One works fine. The other was given to me as a
loaner when they couldn't get my number to work. It worked fine until I got
mine back, then they disconnected the number; they didn't ask for it back.

When I swap SIMs, neither phone works. I keep reading here about just
putting your SIM into a phone and having it work; why doesn't my second
6340i?

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Jer - 04 Nov 2005 02:14 GMT

> I have two Cingular 6340is. One works fine. The other was given to me as a
> loaner when they couldn't get my number to work. It worked fine until I got
[quoted text clipped - 3 lines]
> putting your SIM into a phone and having it work; why doesn't my second
> 6340i?

Sounds like your in an area that's causing the phones to latch on to a
TDMA or analog signal. For either mode, the phone number and the ESN
have to match Cingular's registration requirements. Your phone number
is in the SIM, the ESN is in the handset.

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jer
email reply - I am not a 'ten'

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Ted - 04 Nov 2005 05:13 GMT

>> I have two Cingular 6340is. One works fine. The other was given to me
>> as a loaner when they couldn't get my number to work. It worked fine
[quoted text clipped - 9 lines]
> to match Cingular's registration requirements. Your phone number is in
> the SIM, the ESN is in the handset.

The phone worked until they stopped the number. Could they have instructed
the network to ignore that particular ESN? If so, can the phone ever be
used?

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Jer - 04 Nov 2005 05:30 GMT

>>>I have two Cingular 6340is. One works fine. The other was given to me
>>>as a loaner when they couldn't get my number to work. It worked fine
[quoted text clipped - 13 lines]
> the network to ignore that particular ESN? If so, can the phone ever be
> used?

Only the Shadow knows what they've been up to. If you visit a local
retail shop with the phones, they could look to see A) the handsets
really are yours, and B) their database system reflects the truth.

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jer
email reply - I am not a 'ten'

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John S. - 04 Nov 2005 13:11 GMT

>I have two Cingular 6340is. One works fine. The other was given to me as
>a loaner when they couldn't get my number to work. It worked fine until I
[quoted text clipped - 4 lines]
> putting your SIM into a phone and having it work; why doesn't my second
> 6340i?

Could be that it is trying to "work" on the TDMA side and that won't work on
one of them.

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TabooLexicon - 07 Nov 2005 04:12 GMT

A lot of times the 6340i's can take up to a couple of minutes to find
service. It was designed as a go-between during the TDMA to GSM
transition. The phone normally looks for a TDMA signal first and then
a GSM signal if it can't find a TDMA signal. Needless to say it was a
good phone during the transition when there were still a lot of TDMA
towers still around. It sounds like it keeps searching for TDMA and
it's not having any luck. You're probably due for an upgrade if you
still have that 6340i. A GSM only phone will probably provide you with
a lot better service. . well, service period for that matter.

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John Navas - 07 Nov 2005 19:32 GMT

>A lot of times the 6340i's can take up to a couple of minutes to find
>service. It was designed as a go-between during the TDMA to GSM
>transition. The phone normally looks for a TDMA signal first and then
>a GSM signal if it can't find a TDMA signal.

What it actually looks for first is whatever has been programmed on the SIM as
the Home network, which could be either TDMA or GSM.

>Needless to say it was a
>good phone during the transition when there were still a lot of TDMA
>towers still around. It sounds like it keeps searching for TDMA and
>it's not having any luck. You're probably due for an upgrade if you
>still have that 6340i. A GSM only phone will probably provide you with
>a lot better service. . well, service period for that matter.

The 6340i is actually as good on GSM as any current handset, the only caveat
being that it doesn't support ENS.

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Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

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