How can I make Google Voice attach a signature to all my outgoing SMS messages?

3 Answers 3


What you want can be achieved using a Greasemonkey script. You can take an existing one from userscripts.org - start with one that works on Google Voice (like this one) and add your signature.


You can do it using the Mo+ app.

Go to your Mo+ setting, click Google Voice, click signature and change it the way you want.

  • @Rockpaperlizard This was a pretty marginal edit, but I think the link is better than the giant photo.
    – jonsca
    Feb 22, 2017 at 0:25

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