I have recently moved from the UK to the US, and brought with me my beloved iPhone 4, which I had unlocked by my uk provider, Vodafone. I then researched phone plans in the US that included international texts and calling to the UK, so I could keep in touch with my friends there. AT & T has an intl package that includes 100 countries, but not the UK strangely, so I went with TMobile, with their $50 prepaid no contract sim, with an additional $10 a month unlimited texting and 250 minutes of phone calls to landline numbers in a number of other countries, including the UK.
I am having HUGE problems in texting the UK. I seem to be able to receive texts fine, both nationally and internationally. But sending them appears to have no rhyme or reason, and the majority *look* like they are being sent, but they are not. One weird thing is that when the text is not sent properly, it creates a new folder within messages with these failed messages in it - still labelled whatever contact name I was sending them two. So I will have two folders for a person - one with their incoming messages, and a few odd ones that were successfully sent, and then another folder, same contact name, which contains only my failed sent messages. They are not flagged as 'failed' messages - with the little exclaimation mark in a red circle, but they are just in a separate folder, and I now know they have not been received. These are all just SMS messages, I've not attempted any picture messages, I'm not that bothered whether I can send those or not. I just want to be able to have quick chats with my friends - one main one who has no computer at mo, so this is the best method of communication.
I have spend hours in a T-mobile store, done online chats to customer service, and spent a long time on several occasions with tech support on the phone. They have tried all sorts - turn on/off phone, keep wifi turned off, and 3G turned off, first I tried configuring the foreign telephone numbers in the format 011 44 number (44 is the code for UK) which worked a bit, but then didn't. Today a tech person suggested changing them to the format + 44 number and initially this appeared to work, and for a short period all the international text messages I sent were received. But this evening I tried to send one twice, and it's back to the old problem, even though I went through all my contacts and changed them to the + 44 format.
I have been given all the settings that have been mentioned in other threads -
Note: For some iPhone unlocks you may need to use wap.voicestream.com. (I have tried texting with both of these addresses in APN: - didn't seem to make a difference)
Enter the following information under the MMS section:
MMS Proxy: 220.127.116.11:8080 (Leave Blank for 4S)
MMS Max Message Size: 1048576 (Leave Blank for 4S)
MMS UA Prof URL: http://www.apple.com/mms/uaprof.rdf
which I have checked and double checked to make sure they are entered correctly.
Can anyone please suggest anything else I can do? I seem to have exhausted T Mobile's tech support's ideas. I am so very frustrated, as I have paid all this money specifically to be able to text the UK, and can't seem to get it to work for more than a little while
One other thing I wondered... could it have anything to do with the T Mobile signal strength when you send the text? On one of the recordings on the tmobile help number queues, it says for international calls, make sure you have three bars. My parents, where I am staying till I get settled, live out in the countryside, and so there may only be one or two bars of signal on the phone.
Thank you so much for reading this, and hopefully having a suggestion or solution, as I am mega fed up.