Help Group SMS messages goes to which telephone number?

[Zente]

When I send group SMS messages, how can I know which number receives the message. If the contact has more than 1 number (which is generally true) to which number is the SMS sent to?
As there's no primary setting for sending messages...

 

[gd123]

I believe they'll go to the one that says "primary". If you long press on the contact number it should come up with a menu allowing you to change which is primary.

Don't know a way of changing them on mass, which was one of my bug bears when setting up. I remember i tried to send a mass sms telling everyone my new number and sent to half landlines - and didn't put my name on it either