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I switched from AT&T to tmobile a couple years ago to get on
tmobile's 200 minute plan. I found this which mentions some AT&T
network changes that result in them trying to replace old phones:<br>
<a class="moz-txt-link-freetext" href="http://www.phonecan.com/index.php/customer-qustions-at-t-sent-me-a-letter-for-a-free-upgrade-with-no-contract">http://www.phonecan.com/index.php/customer-qustions-at-t-sent-me-a-letter-for-a-free-upgrade-with-no-contract</a><br>
<br>
"<strong>Shutdown of the Cellular One Network - </strong>AT&T
purchased Cellular One and began migrating customers late in 2007.
Customers had the option of keeping the same phone and were sent a
special SIM card to make it compatible with the AT&T network.
In order to make the Cell One phones compatible certain parts of the
legacy Cell One network had to be maintained even after the
migration process was complete. In late 2010 the campaign for the
network shutdown began and the customers still using their Cell One
phones were given the option of a free upgrade with no contract or
yet another SIM card that would make their phones compatible with
the AT&T network.
<p><strong>Shutdown of the (Original) AT&T Wireless Network</strong>
– Cingular purchased AT&T <em>Wireless</em> in 2004.
Cingular changed its name to AT&T <em>Mobility</em> in 2007
after one of its parent companies purchased AT&T <em>Incorporated</em>,
provider of landline services. Years later there are still a few
customers on the network using their same handsets from AT&T
wireless that are at least 6 years old. The free no-contract
upgrade letters began going out in early 2011. The actual
shutdown happens in May. As of yet I have not heard of the option
to just get a new SIM.</p>
<p><strong>Single-Band GSM (2G) 1900mhz Handset Users – </strong>After
the merger of AT&T Wireless and Cingular in 2004, Cingular
owned licenses in the 850 and 1900 band throughout most of the
country. Cingular “dual cast” its GSM signal in both bands until
it began deployment of its 3G network in 2005. The 3G technology
then took over the 1900 band. If you’re in one of the 2G areas
that are scheduled to be upgraded to 3G in the soon future and you
have one of these phones, you would have received one of these
mailers offering a free upgrade with no contract.</p>
<p><strong>Users of 2G Phones with High Voice Usage</strong> – I
don’t fully understand the technological aspects of this one. All
I know it the users who currently using 2G phones in certain
states (California is one of them) are being sent
free-upgrade-with-no-contract mailers. I could speculate that the
3G handles voice calls more efficiently and they want to keep both
2G and 3G networks running smoothly, but that’s purely
speculation."</p>
<br>
On 08/25/2011 09:31 PM, error wrote:
<blockquote cite="mid:1314322304403-6727047.post@n2.nabble.com"
type="cite">
<pre wrap="">AT&T has been calling and text'ing for the last 2 months. They have informed
me that my phone will no longer be compatible with their network on Monday
Aug 29-30, 2011. Has anyone else running into this issue?
--
View this message in context: <a class="moz-txt-link-freetext" href="http://openmoko-public-mailinglists.1958.n2.nabble.com/AT-T-and-my-beloved-Freerunner-tp6727047p6727047.html">http://openmoko-public-mailinglists.1958.n2.nabble.com/AT-T-and-my-beloved-Freerunner-tp6727047p6727047.html</a>
Sent from the Openmoko Community mailing list archive at Nabble.com.
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