Clientbook does support the ability to send videos to customers. There are some specific requirements provided to us from our messaging provider and the main phone carriers.
Sizing Regulations:
You are able to send up to 10 attachments in a message, with the total size of the message not exceeding 5 MB. The size of a single attachment cannot exceed 1.5 MB. However, some carriers won't allow individual attachments greater than 1 MB in size, so best practice to avoid undelivered media would be to keep any single attachment to less than 1 MB.
Accepted File Types:
There is a long list of accepted MMS types. The mainstream types like MP4 and MOV are accepted. For more information, here is an article from our messaging partner that references other approved types.
Inbound Videos:
Inbound videos are not supported. If a customer tries to message in some sort of video file, it will not come into Clientbook at all.