Can the Outgoing SMS plugin be modified for other sms/text services, that are free, like WhatsApp?

Can the Outgoing SMS plugin be modified for other sms/text services, that are free, like WhatsApp?

Hi Codee, 

I believe WhatsApp has a WhatsApp Business API, but they charge for that as well, unfortunately.

Dave Edis - Senior Developer
interactivetools.com

Hi Dave, I get it. Thanks.  What about utilizing Google Voice for sms? 

Thanks, Dave. That's why I was asking about Google because I've had google voice for over 20yrs and the only time I paid was for international live calling to europe. Funny, I put $25 on way back then, had 2 international students use it from my home to call France and Germany and still have $23 on it.  

Why I'm asking is this: I set up cmsb for a client and whenever an application is submitted to the backend the submitter and the site owner get confirmation emails. This customer says she is slow to pick up her emails and they get lost in all the fluff and is asking about receiving a text to her phone whenever an app is submitted. She will probably max out at 2 dozen applications per year so it's a minimal usage. She has a cellphone and she also has a google voice number so I'm trying to figure out the quickest and least expensive method to help her with that is us-based. 

Yeah, the cost there is likely just the setup of the code; the per-message fees should be pretty minimal.

Dave Edis - Senior Developer
interactivetools.com