Snapguide
STEPS
TOOLS
Press settings and then scroll down to the third section.

Press settings and then scroll down to the third section.

Select messages.

Select messages.

Select Receive At.

Scroll down to the Caller ID section and click on it.

Scroll down to the Caller ID section and click on it.

Now choose your phone number (assuming that is the one you want as your primary caller id).

Now choose your phone number (assuming that is the one you want as your primary caller id).

The creator of this guide has not included tools