If you'd like to know how to add a signature, or even an "if found, please contact message," to an SMS, follow the following easy steps.
Things You'll Need:
1First, Click on the "Options" icon from your homescreen
2Then, highlight and click the "Auto Text" option
3Now, you have two options. You can either A)Create a new AutoText phrase or B) Edit an existing phrase.
4If you are creating a new one, from this screen click the "menu" button and select "new." If you are editing an existing signature, then scroll down to the phrase you would like to edit, click "menu" button and select "edit"
5For new phrases only, scroll down to the "replace" section and put in your command letters
6For new and edited phrases. Scroll down to the "with" section and write in your desired signature. Be sure to click "menu" button and click Save.
7Then when composing a text message, just type in your Auto Text phrase (ex: "Sig") and then press the space bar and you're done!
How To Article: How To Add A Signature To An Sms Text On Your Blackberry