I sent Kyocera an email and this is there response:
"It is not possible to send a group text message using your phone by default. This is not a phone limitation but an Android operating system limitation. The Ice Cream Sandwich operating system does not have this feature."
What you can do now is to download apps from Google Play that will let your phone have the group messaging feature. Here's are few apps you can try:
- GO SMS Pro
- Groupy / contact by group
- GangBook-group contact manager
- Group SMS Pro & Scheduler