Here is some helpful info for setting up your Iphone with T-Mobile.

You Should be able to make calls and do normal text messaging on your iPhone once you put your T-Mobile sim in it, as long the iPhone is unlocked. Be careful with plugging it into itunes or updating the software on your phone, as this will likely relock the phone!

If you do not already have an internet plan, call T-mobile or log into your T-mobile online account and make sure you have the Smart Phone Web feature, this is the one that is set up to work for the Iphone. Once you have a Internet data plan on your account, here’s how to set up the internet on your iPhone:

1. From the Main Menu, tap Settings.
2. Verify that Wi-Fi is set to Off -- this will ensure that no wi-fi signals are interfering with your Internet access. To take advantage of local wi-fi at a later time, feel free to go back and turn this setting On; just make sure to turn it Off again when you are done using the wi-fi network.
3. Tap General Settings, then tap Network.
4. Turn Data Roaming On -- this will allow your iPhone to locate T-Mobile’s data network.
5. If you see a setting for 3G, turn it Off -- the iPhone cannot currently connect to T-Mobile’s 3G network, and this setting will interfere with its attempt to connect to our EDGE network for service.
6. Tap Cellular Data Network (this setting may be labeled EDGE instead on older versions).
7. In the APN field, enter either epc.tmobile.com (or internet2.voicestream.com if that doesn't work) -- this tells T-Mobile which version of our Internet network you want to connect to.
8. Leave the Username and Password fields blank -- T-Mobile will assign this information based on your SIM card information.
9. Return to the Main Menu and open Safari to browse the Internet.

It can sometimes take 2 to 48 hours for Internet service to begin after adding the service to your account.

Also, the data plan associated with your iPhone comes with Free Unlimited T-Mobile HotSpots. To log in, use the following:

Username: ( Your 10-digit Cell Phone Number by default. This will be the number of the phone with the data plan.)

Password: ( The last four digits of your Social Security Number by Default. This will be the last four digits of the social security number of the primary account holder.)

This should enable you to log into WiFi hotspots and browse the internet on your iPhone!

If you are interested in adding Picture Messaging to your iPhone, here are the settings you’ll need to set it up. There are two ways to do picture messaging on the iPhone, the first is primarily for first generation iPhones and 3G iPhones that have not upgraded to the 3.0 firmware.

If you are unsure whether or not you have the 3.0 firmware you can navigate to Settings – General – About and view your firmware version under “Version”.

First generation iPhones and 3G iPhones that do not have the 3.0 firmware require the use of a 3rd party application for picture messaging. These settings should work just the same in any application you find for picture messaging.

1. Navigate to the Settings option of whichever program you’re using..
2. Enter the following information, these should be the only settings the program needs:
   1. MMSC: 216.155.174.84/servlets/mms
   2. Proxy: 216.155.165.050:8080
   3. APN: wap.voicestream.com
   4. Username: [Leave blank]
   5. Password: [Leave blank]
3. Tap Save.

For 3G iPhones that have been updated to the 3.0 firmware, here are your settings:

1. Go to the Main screen.
2. Tap Settings.
3. Tap General.
4. Tap Network.
5. Tap Cellular Data Network.
6. Enter the following information under the MMS section.
7. Enter wap.voicestream.com into the APN field. Backup setting: epc.tmobile.com
8. Leave the Username field blank.
9. Leave the Password field blank.
10. Enter 216.155.174.84/servlets/mms into the MMSC field
11. Enter 216.155.165.50:8080 into the MMS Proxy field.
12. Leave the MMS Max Message Size field blank.
13. Leave the MMS UA Prof URL field blank.
14. Press the Home button to return to the main screen of the phone.
15. Turn the phone off and back on to put the settings into effect.
16. You should now be able to send/receive Picture Messages.

Alternate MMS setup (if first way doesn’t work):

1. Go to the Main screen.
2. Tap Settings.
3. Tap General.
4. Tap Network.
5. Tap Cellular Data Network.
6. Enter the following information under the MMS section.
7. Enter epc.tmobile.com into the APN field. Backup setting: epc.tmobile.com
8. Leave the Username field blank.
9. Leave the Password field blank.
10. Enter mms.msg.eng.t-mobile.com/mms/wapenc
11. Leave the MMS Proxy field blank
12. Leave the MMS Max Message Size field blank.
13. Leave the MMS UA Prof URL field blank.
14. Press the Home button to return to the main screen of the phone.
15. Turn the phone off and back on to put the settings into effect.
16. You should now be able to send/receive Picture Messages.