MMS stands for Multimedia Messaging Service and is a direct evolution of the Short Message Service, otherwise known as SMS.
MMS allows you to send messages that are more than just text. Most commonly that’s sending pictures, but the network can convert some non-picture messages to MMS to transmit them across the network.
Text messages sent from older handsets that include an emoji, text-only messages that exceed a certain number of characters or the same message sent to many recipients could be sent as an MMS.
We do not include MMS in your standard allowances and you will incur additional charges for sending them. See here, for current pricing: https://www.plan.com/pricing
If you do have to send a message that includes multimedia, we recommend that you use your data service and a third-party application like WhatsApp or Facebook Messenger to do so, as you will not incur charges doing so, so long as you remain within your inclusive data allowance.
To manage access to MMS, go to:
CONTROLS > PREMIUM & ROAMING > MMS > [select user] > ALLOWED/BLOCKED