07-29-2013 02:41:34 PM
I have not been able to get the Sony Xperia SP to connect to my microcell (or at least I'm assuming the microcell is not letting it connect to it). I have dropped and re-added the number several times to the microcell config.
So before I return the phone, does anyone else have any ideas or things to try? The one person I spoke with at ATT technical support didn't think there was anything that could be done.
(I know that on the website it indicates that you need to have an AT&T branded phone....just trying to confirm that there's no other option at this point).
Thanks in advanc.e
07-29-2013 03:17:21 PM
07-29-2013 03:26:17 PM
Hi Otto, thanks, that's exactly the point.
Most Sony Xperia phones nowdays are not AT&T branded.
Although the phones may support the exact 3G frequencies and bands, etc, there is something else that needs to happen for a Microcell to allow them on (aside from the obvious of registering the AT&T phone number on the desired microcell). What the tech support reps and I think is that it has to do with the IMEI not being fully recognized in the AT&T systems since they are not AT&T branded phones, and thus the right configuration cannot be deployed. There may be a very simple answer to this such as someone adding an IMEI record somewhere, but finding that out is not an easy feat.
So while the C5306 works on AT&T using HSDPA, I haven't found anyone who has gotten the microcell to recognize it.
Are you aware of any non-AT&T branded phones that work on a microcell, and how that was accomplished?
07-29-2013 07:16:19 PM
No. The MicroCell will not work on a phone that has been configured to another network. It doesn't make any differnce that the phone works on the same GSM/3G/4G/LTE bandwidth. The IMEI code (and another one) has to be registered to the AT&T network. You can't spoof it.
07-29-2013 09:06:13 PM
but just to clarify, the phone is not registered on any other network, nor was it. It's a brand new phone that is designed to be sold unlocked and unattached to any specific network. The phone works fine on the regular 3g AT&T running hspa+. I have an att sim in it given by att, and the IMEI was entered on att systems to get the sim to activate. The problem is in getting it to take advantage of the att microcell I've had for years because I need it in a specific location that barely has an att signal.
there is clearly an additional configuration step somewhere, and as of right now the consensus is simply "it's not an att branded phone". What that educates me on is that don't bring a phone that doesn't have the ATT logo to att, even if it supports the right bands and frequencies--just don't count on getting it to work.
07-30-2013 09:16:12 AM
It could have something to do with the IMSI number which allows the network hardware to recongnize the subscriber. The IMSI number is converted to a phone number by AT&T's IT department using a specially designed 15 digit code number. Because of the sheer number of phones/models domestically and internationally, it is almost impossible, and very costly, to keep the conversion codes current so that ALL phones whether they are purchased here or abroad will work with all of AT&T's hardware. The bandwidth requirments have nothing to do with the IMEI/IMSI codes. Phones that are branded by AT&T have IMSI codes that are recognized by the network and even some phones that aren't branded fall within the current IMSI code range. Verizon has the same sort of system for their CDMA network.
The IMEI code is provided by the carrier when signing up with the network. It is an additional code that is used for tracking the phone on the network.
07-30-2013 09:53:10 AM
I see, thanks Otto. That answer explains several things to me.
I wish there was a way to submit a phone model under certain circumstances, yet I also understand how monumental of a task it can be to have coverage for all models of phones, if at all possible.
07-30-2013 11:00:27 AM