1. Delete your existing auto sig.
2. Make an autotext entry where:
when I type: zz (or any irregular 2 letter combo like zx)
replace it with:
Your phone extension etc.
autotext entries can really hold a lot. give it a try..I have zz as my "professional"
signature and xc as my "casual" sign off.
once you get used to it, you don't even notice that you're entering 2 extra letters @
the end of a message