Group messaging makes it easy to send a message to multiple contacts all at once.
You can choose to send a group SMS or group MMS.
Important: Group MMS may incur extra data fees.
Tap , and then select multiple recipients.
To send a group SMS, make sure that
Send as individual messages is selected.
Clear this option to send your message as a group MMS.
||Your message will be sent to the recipients as a text message and you will be charged by your mobile operator for each message sent. Replies of your recipients are sorted separately.
||Similar to a group chat, sending a group MMS lets your recipients join the conversation you've started.
HTC One also organizes message replies in a single conversation thread. If this is your first time to send a group MMS, you may need to enter your mobile phone number.
Tap the box that says
Add text, then enter your message.