I have got my SMS message centre number from my network provider and now want to be able to enter the info into my XDA. I cannot do it automatically by 'Get Voicemail & SMS settings' in Phone as it keeps returning an error.
What I want to know is, is there any way or any software that will allow me to be able to manually enter my networks SMS message centre number into my unit.
Any help would be MUCH appreciated.
Jollster
Can you be more specific with the type of error message you receive?
Go to Start->Inbox. Take Tools->Options and touch and hold on SMS. Lo and behold, the Message Centre(er) number.
The error message I am getting is 'Network Error - Unable to read setting from the network'.
In response to your post "Auldg" I did that and entered in the Message Centre Number for 3 (my network provider) and pressed OK. My understanding is that this would have saved the number. Trying to send a text didn't work and I still got the error message "The sim card is invalid. Please contact your service provider for a new sim".
I know there is nothing worng with the sim as it works fine the phone supplied by 3. I have tried 02's message centre number following a conversation with them and this resulted in a failed SMS send as well. I know it is not the XDA as this sends txts using an old T-mobile sim.
When I looked at the SMS centre number again after entering two different numbers neither of them were there. Trying to select a network doesnt give 3 as an available network.
Does the XDA store the SMS centre number in the SIM card or the phone. If its the phone is there a way to hard code my sms centre number into it?? This is driving me mad as I can do everything else with my 3 sim as normal just not send texts
This '3' network, what is it? Is it a GSM provider or a 3G Networks Provider?
Ah "3" !
Are you in the UK on 3? This is a new GSM/UTMS network and I wonder if the SIM card has new fancy stuff on it the the XDA doesn't know how to handle. You are clearly a VERY early adopter, bless you.
I didn't have to enter my MC number (or Voice Mail number) when using my XDA on Orange so these must be picked up from the SIM. Maybe the 3 sim holds these details in a different place from the rest of the networks?
One for the xda-developers firmware gurus to take a look at I think.
And so can one of the XDA-Developer firmware gurus shed any light on this matter???
I didn't really switch for the new technology that 3 offers, quite the opposite in fact as I din't really need to use it. The reason being was the deal on free mins they offered, but that's by the by. I can still use the 3 sim in my XDA and make / receive calls using the 02 network (this is what it uses if it cannot pick up the 3 network) and also receive texts. Just not send them.
Can any development guru's PLEASE shed any light as to this situation and may be even be able to offer a solution. If its even only that its something that can be addressed in an upcoming firmware ROM.
Some divine inspiration from the gods would be hugely appreciated.
So, let me make sure I am getting this right. You currently have no way to set your SMS service center number in the device, and if you do using the normal options the number does not stick?
OK that said you can do a registry hack telling the reg to override the SIM and use "# you choose" number. See my thread towards the bottom on how to novice level write a reg key http://www.xda-developers.com/forum/viewtopic.php?t=1660
I haven't yet looked up where the reg key for SMS service center number is but I’m going to guess it is located right above or below the location specified in the thread.
I'm just going to guess but I don't think forcing your machine to use a SMS service center number from the device end rather than the SIM end is going to solve your can receive but not send problem. Given the service center, number is what is used to send your SMS. If your device is not reading it from the SIM and you are hand putting it in and it's not sticking this sounds like SIM network problem not device problem, could be wrong though:? Let me know overriding the SIM works. Can you use that service center number to send SMS on other Mobile Terminals (handsets/cell phone) Does a regular cell phone see the SMS service center number from the SIM? If the software set the XDA uses to talk to the GSM network is failing, but works talking to other GSM networks...sounds like a service provider protocol or provisioning problem (the way they have their GSM network set up i.e. do they have their own towers or are they ridding on someone else’s footprint but have or do not have their own switches etc.)
You might also try un-checking or checking the use Unicode option under accounts SMS in Inbox, but this should really make no difference as this is only when necessary protocol anyways, but who knows. I still think it's on your service provider’s end/SIM. The XDA just talks to the network using GSM "Standard" agreed upon protocols for GSM. Now the provider can do whatever they like. These are just suggested standards so problems (maybe) like this from occurring. Anyway, let me know if this makes any difference. Always learning :lol:
Cheers,
E.
You have hit the nail on the head exactly. When I try to enter the number manually it does indeed not stick. I have tried the sim in the original phone that it came with and it works as per normal. All the functionality is there.
The network I am on in the UK is a new network that is giving the 3G technology but this is only being rolled out and is not nationwide. They do piggyback onto another providers network (namely 02) when you are not in a 3G area so that you are always able to make voice calls / send tetxs.
I have no idea as to whether they have there own switches etc as its like trying to get blood out of a stone when talking to there customer services.
I have looked at the thread about editing / creating registry keys and did look at the key that you mentioned. Above the vmail key is an SMS key but opening it led onto all sorts of other fields and protocols which threw me. I am not sure which of these (if any) would be the correct one to start entering SMS Message Centre numbers into or what I would need to hard code it as a new registry key.
To this end I cannot see if hard coding it to make it stick works or not. Can you shed any light as to this??? Would be much appreciated if you could.
With thanks
IanJ
I'm going to see if I can get my XDA to overide the SIM SMSC, I'll post success or
many thanks for your help
Why does it always say "Conditional call forwarding active" when I make any call?
Hi there, basically I bought a new and sealed T-Mobile branded Samsung Galaxy SII phone from eBay and am using my 3 mobile sim in it.... I assume it wasn't originally locked when I bought it, as I went through the root and unlock method (ChainFire app), and the code was 00000000, and never at any point asked me to enter that code into the system, so hey, my 3 sim seems to work in it.... apart from the fact that for every call I make the message "Conditional call forwarding active" always crops up with a beep to go with it, then after a couple of seconds the call is made. It isn't a major problem as such I don't think, but hell it definitely isn't normal and is quite annoying after spending £400 on this otherwise amazing phone.
I have tried to fiddle with the settings but for some reason I cannot disable any of the call forwarding settings, some sort of error message crops up. I have phoned up the 3 network who I am with three times today and they asked me to enter a few # codes to sort the problem out, but I had no luck, and then they had me factory reset the phone using the option in the settings. I did that, and I still have this problem. I also get the message "Connection problem or invalid MMI" when entering most # codes, this seems to have happened after rooting, though I am not 100% sure if that is the case.
My phone is the Samsung Galaxy S II I900, just to confirm that.
I look forward to hearing from you guys
I am on Three and I get the same message although my S2 was purchased from O2 then rooted. I have not seen any other reports about this but the message has not bothered me.
I have the same message. Ave tried several hings without success, however since it really does nothing, I am starting to get use to it. But if someone knows how to solve it please let us know
voice mail
Hi guys i have this to but it only started when i activated my voicemail so i think its down to the voicemail
e.g if your on the phone and someone else calls they are placed forward to your voice mail ???
hope this helps
Hey there guys, thanks for the replies so far, glad to hear others are experiencing this annoying problem. I seem to have had this since rooting it, originally T-Mobile though I am 99% it was never "locked" to the network for some reason as I mentioned as I have never had to enter the 00000000 code, which the free ChainFire sim app gave me (seems like it means it is unlocked already???). The guys on the 3 helpline were giving me loads of codes which weren't of any help, and telling me about what options I could fiddle around with, but I had tried all of these to no avail.
Are people also getting the MMI message I mentioned in my original post, whenever they enter # codes in the dialer? It seems to me that both of these problems started at the same time (this error message and the forwarding issue - I am sure they are linked). It means, for example, I probably won't be able to set up a speed dial because of it, nor will I be able to use the "secret codes" as mentioned in the dedicated thread of the same name on this site.
Why is it a problem for some and not for the majority of people, we must have something in common which we have done with our phones which has caused this?
I really hope someone can sort this annoying problem out.
It's normal. "Call Forwarding Active" is displayed when all calls are forwarded. "Conditional Call Forwarding Active" shows when forward when busy, forward when unanswered, or forward when unreachable is selected. To make the message go away you'd have to disable the three forwarding options in their settings. The pre-populated number is always your carrier voicemail (read from the SIM) or Google Voice.
BarryH_GEG said:
It's normal. "Call Forwarding Active" is displayed when all calls are forwarded. "Conditional Call Forwarding Active" shows when forward when busy, forward when unanswered, or forward when unreachable is selected. To make the message go away you'd have to disable the three forwarding options in their settings. The pre-populated number is always your carrier voicemail (read from the SIM) or Google Voice.
Click to expand...
Click to collapse
Cheers for the reply Barry, yeah I expect it is normal but the thing is I cannot change these settings, my phone won't let me as an error comes up. I know it's not a major problem, just a bit annoying I can't get it to go away. I can't disable those three things, I tried a few times already.
Plus, I constantly get the MMI error message, which I mentioned before, seems a bit of a coincidence how these problems started the same time. I can't enter the majority of "#" codes into the dialer, it always says "USSD Running" or something along those lines and then produces the message like 2 seconds later.
Any ideas? Thanks so far for the advice
I have this problem but unlike all others I cannot make any calls on account of it. When I try to disable call forwarding I get an error msg saying it's not supported by the operator.
There HAS to be a way to fix this. I cannot make any calls or use 3G.
Try this
menu-call-additional setting-select network default...
It work with my sgs2.
On the Galaxy S2 if you go to: settings-call-call settings-call forwarding-voice call forwarding -- You will most likely see that for unanswered or unreachable calls it's not disabled because it forwards it to your voicemail, that's why it says conditional call forwarding is active. If you disable all options you won't get the message but then unanswered calls won't go to voicemail.Hope that helps.
Satish
dynamicbot said:
Hi there, basically I bought a new and sealed T-Mobile branded Samsung Galaxy SII phone from eBay and am using my 3 mobile sim in it.... I assume it wasn't originally locked when I bought it, as I went through the root and unlock method (ChainFire app), and the code was 00000000, and never at any point asked me to enter that code into the system, so hey, my 3 sim seems to work in it.... apart from the fact that for every call I make the message "Conditional call forwarding active" always crops up with a beep to go with it, then after a couple of seconds the call is made. It isn't a major problem as such I don't think, but hell it definitely isn't normal and is quite annoying after spending £400 on this otherwise amazing phone.
I have tried to fiddle with the settings but for some reason I cannot disable any of the call forwarding settings, some sort of error message crops up. I have phoned up the 3 network who I am with three times today and they asked me to enter a few # codes to sort the problem out, but I had no luck, and then they had me factory reset the phone using the option in the settings. I did that, and I still have this problem. I also get the message "Connection problem or invalid MMI" when entering most # codes, this seems to have happened after rooting, though I am not 100% sure if that is the case.
My phone is the Samsung Galaxy S II I900, just to confirm that.
I look forward to hearing from you guys
Click to expand...
Click to collapse
Its just simple, Just take out ur sim card put it will some other mobile and cancle all diverts....and then put it back to ur mobile again and then check out wat happned....
Thanks
---------- Post added at 01:41 PM ---------- Previous post was at 01:36 PM ----------
dynamicbot said:
Hi there, basically I bought a new and sealed T-Mobile branded Samsung Galaxy SII phone from eBay and am using my 3 mobile sim in it.... I assume it wasn't originally locked when I bought it, as I went through the root and unlock method (ChainFire app), and the code was 00000000, and never at any point asked me to enter that code into the system, so hey, my 3 sim seems to work in it.... apart from the fact that for every call I make the message "Conditional call forwarding active" always crops up with a beep to go with it, then after a couple of seconds the call is made. It isn't a major problem as such I don't think, but hell it definitely isn't normal and is quite annoying after spending £400 on this otherwise amazing phone.
I have tried to fiddle with the settings but for some reason I cannot disable any of the call forwarding settings, some sort of error message crops up. I have phoned up the 3 network who I am with three times today and they asked me to enter a few # codes to sort the problem out, but I had no luck, and then they had me factory reset the phone using the option in the settings. I did that, and I still have this problem. I also get the message "Connection problem or invalid MMI" when entering most # codes, this seems to have happened after rooting, though I am not 100% sure if that is the case.
My phone is the Samsung Galaxy S II I900, just to confirm that.
I look forward to hearing from you guys
Click to expand...
Click to collapse
Just simple take out your sim card and put in some other mobile and cancel all divert and then put it back to ur mobile and check out wat happened ....
s_rajkotia said:
Its just simple, Just take out ur sim card put it will some other mobile and cancle all diverts....and then put it back to ur mobile again and then check out wat happned....
Click to expand...
Click to collapse
you realise thats almost a year old? Check the dates on threads before you post
ADMIN EDIT: True, but it is a current issue for some people so it's still valid to answer the question.
Doesn't work
My phone drops every call, even with SIM cards from different countries and in all conditions. Thinking this call forwarding might have something to do with it, I tried to deactivate it, first through the settings -- no luck -- than by reformatting the phone. Nothing, cannot get rid of it because it says it is set by the 2 different phone companies I use.
I don't mind the message but when I call someone, I can hear that the call is being sent somewhere, there is a 1st ring, then it rings the other phone. Does this have to do with call forwarding? Can it be interrupting the phone signal and causing the call to drop ?
I have also removed both the Turkcell and Telefonica SIM cards, put them into another unlocked phone and tried to cancel but as soon as I put them back, the message returns and my calls drop.
Im also getting this error when I updated to 4.1.2 and used galaxy s2 sim unlock
Has nothing to do with call forwarding !!!
The Message worked on all AT&T cell phones, since i can remember,. i been using go phones since 06..... and they all had this message when right after the number was just dialed, right after pushing the green phone icon button to dial it , right after entering the number to be dialed on the keypad.
I have found this message on LG Cell Phone 500 CU series... and all my other phones as well...
IT is NOT a CALL FORWARDING ISSUE>.. because i had worked on that for awhile myself...
IT is a Carrier Issue I believe.
and it doesnt happen ever single time , just on certain days . not sure, why... but perhaps, call your carrier and ask them what type of phone they have your phone listed as.
Then tell them the model and make u have. that might change things... Cell phone carriers know how to mess with your phone and break it too...
so if ur having issues with messaging, call forwarding, it just may be the settings the carrier has you listed or down for.
blah.
anyways. yes it is annoying, i just got a new phone, samsung galaxy express. it is starting to happen too on this one. but had it for a few days and it never showed up till about 2 days later.
I thing it is perfectly normal for your device to display this message, I'm central america and mine also says the same thing anytime i make a call "Conditional Call Forwarding Active. However since I have a prepaid or pay as you go plan with my carrier and whenever I have no more credits to make calls i get the message "Calling Barring Enabled". I guess it has something to do with your carriers settings, it doesn't bother me at all though since I'm already used to it so hope that helps.
Enabling call forwarding for real and then disabling it seems to work
I got the same error also on every version of the stock rom (it used to appear occasionally, though) on my Samsung Galaxy S2 (i9100, without g), in that case going into forwarding settings was enough, because the mobile used to read the current configuration from the network and recognized that there was no forwarding active!
I moved to Cyanogen Mod 10.1.3 / Stable and going into forwarding settings was useless... He was updating with the data from the newtwork, all the forwarding options were disabled but the notification message was still there...
I decided to enable it for real by putting a friend number from the same carrier and then disabling it immediately after, and it solved my problem! Hope it helps!
PS: I'm not sure that enabling the call forwarding is free of charge, just double check with your carrier first!
dynamicbot said:
Hi there, basically I bought a new and sealed T-Mobile branded Samsung Galaxy SII phone from eBay and am using my 3 mobile sim in it.... I assume it wasn't originally locked when I bought it, as I went through the root and unlock method (ChainFire app), and the code was 00000000, and never at any point asked me to enter that code into the system, so hey, my 3 sim seems to work in it.... apart from the fact that for every call I make the message "Conditional call forwarding active" always crops up with a beep to go with it, then after a couple of seconds the call is made. It isn't a major problem as such I don't think, but hell it definitely isn't normal and is quite annoying after spending £400 on this otherwise amazing phone.
I have tried to fiddle with the settings but for some reason I cannot disable any of the call forwarding settings, some sort of error message crops up. I have phoned up the 3 network who I am with three times today and they asked me to enter a few # codes to sort the problem out, but I had no luck, and then they had me factory reset the phone using the option in the settings. I did that, and I still have this problem. I also get the message "Connection problem or invalid MMI" when entering most # codes, this seems to have happened after rooting, though I am not 100% sure if that is the case.
My phone is the Samsung Galaxy S II I900, just to confirm that.
I look forward to hearing from you guys
Click to expand...
Click to collapse
I had the problem. Just solved it. select any one sim. Select settings-call settings-call forwarding-make sure all the options listed therein are disabled. Do this selecting all your sims one by one. The problem will have solved.
anilcsimon said:
I had the problem. Just solved it. select any one sim. Select settings-call settings-call forwarding-make sure all the options listed therein are disabled. Do this selecting all your sims one by one. The problem will have solved.
Click to expand...
Click to collapse
I can't disable the last option (please check the pics)
Sent from my Micromax Canvas 4 A210
Hello,
I also got the similar problem I can't call anyone since 2 days whenever i try to call someone the call drops out and shows the pop up message "Conditional Call Forwarding Active".
I tried to disable call forwarding in call settings but i cant disable the fourth option " Forward Call When Unreachable "
When i try to disable it another pop up message shows up " Unable to deactivate call diverting when phone is Unreachable. Unsupported by operator. "
Please help it is really annoying i can't call anyone.
I use Samsung Galaxy Note 3 Neo
Is this working for anyone? I get the following error:
Wi-Fi Calling Error
Error: ER06 "SIM Not Ready"
I've tried 3 wifi networks, same error. And, I've tried removing the SIM card and had the SIM replaced at a T-Mobile store.
Also -- not sure if related -- but under About-->Phone Identity, the Phone number is shown as Unknown. Strangely, it did show my number until I called tech support to resolve the WiFi Calling issue (unsuccessful after tier 1 and tier 2 support and an in-store visit) but after the first guy tinkered a bit my phone number stopped showing up. If you call my number, though, it does ring. Very strange.
FYI, this is a new account activation, not an upgrade.
This is an important feature due to lack of cell signal at various places I frequent.
The current status with tech support is "we'll call you back in 2 hours" (it's been 3) because it might take that long for our changes to propagate.
:crying:
Thanks for any tips.
dinamael said:
Is this working for anyone? I get the following error:
Wi-Fi Calling Error
Error: ER06 "SIM Not Ready"
I've tried 3 wifi networks, same error. And, I've tried removing the SIM card and had the SIM replaced at a T-Mobile store.
Also -- not sure if related -- but under About-->Phone Identity, the Phone number is shown as Unknown. Strangely, it did show my number until I called tech support to resolve the WiFi Calling issue (unsuccessful after tier 1 and tier 2 support and an in-store visit) but after the first guy tinkered a bit my phone number stopped showing up. If you call my number, though, it does ring. Very strange.
FYI, this is a new account activation, not an upgrade.
This is an important feature due to lack of cell signal at various places I frequent.
The current status with tech support is "we'll call you back in 2 hours" (it's been 3) because it might take that long for our changes to propagate.
:crying:
Thanks for any tips.
Click to expand...
Click to collapse
I had that same issue, I was an upgrade customer. I called in and they had to activate my SIM. I gave them my SIM number and about 10 minutes I could access Visual Voicemail and make Wi-Fi calls.
arsalann24 said:
I had that same issue, I was an upgrade customer. I called in and they had to activate my SIM. I gave them my SIM number and about 10 minutes I could access Visual Voicemail and make Wi-Fi calls.
Click to expand...
Click to collapse
Thanks for the response. My issue magically resolved itself after I completed registration on tmobile.com. No idea if they're related or not but seems like a strange coincidence. Anyway, all working now.
Cheers.
I had to update my 911 address for it to work
Sent from my HTC One using Tapatalk 2
Thanks for any tips.
Actually i had the same problem. I logged into my account and I turned it on in the services menu. Still didnt work. I also all the numerous tips and even called support and still nothing. After about an hour or 2 it just started working. BTW i just opened an acct with tmobile so i dunno if it that makes a difference or not.
You have to set you 911 location.otherwise when your on wifi calling it won't know where to send emergency services to you. I just followed the steps to input my address and after that it worked fine.
Sent from my HTC One using Tapatalk 2
I first had to call support and it turns out they didn't have data on my line ( new account) and than i had to set my 911 address. It than worked just fine. It works great IMO.
I have a gear s tmobile. Up until this past week I've been able to use the gear to initiate texts and all of the sudden this function has stopped. When I go into messages, compose and try to send a message I get this phone icon with a half circle in front of it as opposed to the arrow like it's loading or sending but it doesnt move or change and the texts don't send. When i turn off bluetooth and try to use mobile network or wifi i get the red square icon with the exclamation point. I cannot use s voice to initiate texts either though other s voice functions - ie call bill - works fine.
I can reply to texts as they come in all day. I suddenly just cannot start them on my gear. I have tweaked every option i could think of, rebooted, reset the watch, tried to switch from primary textra to primary Samsung messages, removed the sim card and so far nothing. Something wrong with my sim card or what?
***update*** it was the sim card. Not sure why texting worked at first then didn't but I had to log in and input the # on the sim card and reboot.
i dont have a sim. im using bluetoth with the same problems any help?
I know for me, I can't have airplane mode on and send messages. I can still receive them with it on though.
*with bt connected
royorbs3 said:
***update*** it was the sim card. Not sure why texting worked at first then didn't but I had to log in and input the # on the sim card and reboot.
Click to expand...
Click to collapse
Thank you for the update. I am having the same issue except it affects calling only - I can not make any phone calls, and I can not receive any phone calls - I can text and use my data though like normal, but I can not make any phone calls nor can I receive any phone calls. You mentioned that you had to "log in" and "input the # on sim", and "reboot" -- would you please elaborate where you have to go to "log in" like on the: T-Mobile Website? Samsung Website? where do you "log in"?
XDAUserII said:
Thank you for the update. I am having the same issue except it affects calling only - I can not make any phone calls, and I can not receive any phone calls - I can text and use my data though like normal, but I can not make any phone calls nor can I receive any phone calls. You mentioned that you had to "log in" and "input the # on sim", and "reboot" -- would you please elaborate where you have to go to "log in" like on the: T-Mobile Website? Samsung Website? where do you "log in"?
Click to expand...
Click to collapse
Hey yes on T-Mobile website. My T-Mobile.. I forget the exact links but you click into your device and go from there.. Pretty sure there's a number on the sim and you input that and reboot. I called T-Mobile and they were pretty helpful if you get stuck.
royorbs3 said:
Hey yes on T-Mobile website. My T-Mobile.. I forget the exact links but you click into your device and go from there.. Pretty sure there's a number on the sim and you input that and reboot. I called T-Mobile and they were pretty helpful if you get stuck.
Click to expand...
Click to collapse
Ok, I went on to the T-Mobile website, then created an account for my T-Mobile Samsung Gear S phone number under "My T-Mobile". However, when I log in to "My T-Mobile" I do not see anywhere listed a place where I can input the number on my SIM card. I tried looking under the submenus of: Billing, Usage, Plan, Phone, and Shop, but was not able to find the place where I could input the number on my SIM card -- where do I find the place to input the number on my SIM card?
XDAUserII said:
Ok, I went on to the T-Mobile website, then created an account for my T-Mobile Samsung Gear S phone number under "My T-Mobile". However, when I log in to "My T-Mobile" I do not see anywhere listed a place where I can input the number on my SIM card. I tried looking under the submenus of: Billing, Usage, Plan, Phone, and Shop, but was not able to find the place where I could input the number on my SIM card -- where do I find the place to input the number on my SIM card?
Click to expand...
Click to collapse
Hey I poked around and nothing jumped out at me either. I'm currently using gear s2 so my settings may have changed (it has built in sim.) Give tmob a call and they'll help u. Sorry I couldn't be of more help
I bought this device ~2017 from Sprint for my elderly mother so she could stay connected with the family. One of the features was she could use it to text. She took to that like a fish in water, which made us happy. They did not have WiFi, so it was strictly cellular data. There was no voice, but that was not a problem. It had been working fine until...we got a Tmobile SIM in the mail. (Due to the merger of Sprint with TMobile.). This was supposed to be required due to the 3G retirement.
I installed the SIM. Everything seems to be fine. But then we notice the SMS stopped working. I called Sprint, they did some sort of reset and SMS started working. I went away in victory. But then an hour or so later we noticed SMS no longer worked. Skipping some steps, I took it to the store. We installed a new TMO SIM card. SMS worked again--for 5-15 min, then stopped. They did a warranty replaced of the tablet. Same thing. It first worked (send and receive texts) for <15 min, then failed. They would not allow me to go back to the Sprint SIM card.
I had the manager escalate this through their tech support. After a week or so, the answer came back: SMS is not supported on tablets.
This must be a policy. Certainly it can work. But it seems to be a restriction/problem on the carrier side. However I am not convinced it is really a policy and not just laziness.
What I am seeking from this forum is to learn the following:
A) Does anyone have SMS working on this device (SM-T978U).
B) If SMS works, what carrier do you have.
Alternately, I am looking for a work around that works seamlessly. Anything convoluted will not work for her. She also has an Alcatel GO flip 4. She now has WiFi.
You may want to look at an App like TextFree or Google Voice.
I can report that this was a carrier created problem. The explanation I received was that after the TMO Sprint merger, they pushed out PLMN's that allowed the devices to use the best available resource (TMO or Sprint), I am told. When the Sprint resources could no longer be accessed with the new TMO SIM card, the SMS no longer worked. If others had this problem, it may now silently be fixed. They need to push out an new PLMN and then "cancel" the location to forces the device to take the new PLMN. Works fine now.
My frustration is that the lower levels of tech support are really just customer service to help you use your phone. A rant on the whole experience is not worth anyone's time. For me, a chance encounter with a TMO employee in a local bar was required. Once I got to people with the appropriate level of technical knowledge, the problem was solved quickly.
The answer to the question in the title is 'YES'.
This is not a T-Mobile only issue. None of the US carriers allow LTE/5G tablets to text using SMS or RCS. I am not sure why. I had the LTE Tab S5e on Verizon and at no point could I text directly from the tablet using its number. I had to either use Google Voice or some other third-party app.
I now have the WiFi Tab S7 and the only way I can text is to pair it via Google Messages to my S22 Ultra or to use Google Voice.
The upside to using Google Messages is that I can use the same number on both devices. The only downside is occasionally I have to re-pair Google Messages.
I just bought a used T-Mobile Tab S7. I can sms with stock messaging app.