Hi everyone. The SMS node in Infor IPA Designer first became available in the 11.0.1 release of Landmark/IPA. You can see an announcement last May in this blog post: http://blogs.infor.com/technology/2016/05/infor-process-automation-11-whats-new/
The node works by sending an API call to Twilio . Twilio is am SMS gateway service. There is a charge to use this service but it is very reasonable. In IPA you specify the # to send to and the message to send. The message can include IPA variables.
As said earlier in this thread it is a great alternative to notifying employees via email.
Thank you Ray! Do you happen to know the format for T-mobile & Sprint?
And if they don't work check with the provider. Company mergers and ownership are always changing.
Good luck. Are you going to try the Twillo method mentioned by Keith?