Online mailing service with automatic channel selection?

Question

SMS

Is there a service that knows and chooses which channel to deliver the message to the client? Those. if he has Votsap, send via votsap, if viber, then via viber, if there is nothing, then just sms.

Answer 1

The sms-ka.net service has something similar. For example, I do a viber mailing list, where the message is large in size + a picture and create an alternative text for a simple SMS. Some of the messages go to the viber, and some (who does not have an application) are just sms in alternative text.