I've done some searching on this topic, but it's been awhile since this question has been asked/answered so looking for some updated info. What is the best way to send a text message to external cell phones. And to include some custom text and possibly an image in the text.
Any insight into this would be super appreciated.
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Hello StephK,
I would recommend you to check the two Plugins what Mathieu has mentioned and also try using APIs from service providers such as Twilio, Telesign etc. Here is a list of service providers and other information that might be helpful.SMS APIs