When a contact has multiple phone numbers stored on
HTC One M9+
, you can select which phone number to reply to.
Keep in mind that if you don't select another number, your response will be sent to the phone number that your contact used to send the last message.
While viewing the exchange of messages with a contact, tap
and select which phone number you want to reply to.
Tap the area that says
Add text, then enter your reply message.