not sending text messages

[tracymarie07]

when i try to send my text messages it says fail to send to "the name" but i have signal and everything .. anyway to fix it?

[kunal007]

ur SERVICE CENTER NUMBER for SMS may be wrong or for the another network
change it to the last one for ur network

[TEPEM]

//tracymarie07 back to when I had just bought my phone I experienced similar issue - not being able to send SMS messages, but the difference between our cases is that you are now getting "fail" notifications; at that time I simply had my [Send] button greyed-out...
I think you should follow Kunal's advice concerning Service Center appropriate setup for your network. It wasn't working in my case though, still keep in mind that mine was way different.
If you have no luck then just "Master Clear" and "Master Reset" your phone.