Message size limits vary according to the type of message content and by account type and contract and carrier max allowed size and API used.
The table below shows you the maximum MMS API upload sizes for the various supported content types:
With Transcoding - The below Limits applies to XML clients with Optimised Account type with transcoding ON
MMS GIF Image
MMS Text size
2048 KB - saveMMS/sendMMS API
No Transcoding - The below Limits applies to XML clients Optimised Account type with transcoding OFF and all MM7 API clients.
Visit the Sinch MMS product page to learn more about the Sinch MMS API.