There are two methods of communication over SMS:
Short Message Service (SMS) (text only)
Multimedia Messaging Service (MMS) (pictures, audio, and video content)
SMS | MMS | |
|---|---|---|
Description | Short Message Service | Multimedia Messaging Service |
Sent via | Carrier (mobile network) | Carrier (mobile network) |
Character Limitations | 160-characters. Longer messages are broken up into multiple texts. Limited to text only. | Carrier dependent; ~300KB. Can send attachments and pictures. |
Numbers Supported | You can use your 1-800 number or local number for SMS. | You can use your 1-800 number or local number for MMS. |