timeparity 

TimeParity.SharePointOnline.SMS by: timeparity
CSOM extensions to send SMS to Single or Multiple users of your SharePoint Online Site. Select user(s) by SharePoint Group or Username/Email or SharePoint User Object or SharePoint FieldUserValue(Person or Group column value(s)). Utilizes SharePoint Add-in: SMS Gateway Connector (SMS Via SharePoint... More information
TimeParity.SharePoint2016.SMS by: timeparity
CSOM extensions to send SMS to Single or Multiple users of your SharePoint Online Site. Select user(s) by SharePoint Group or Username/Email or SharePoint User Object or SharePoint FieldUserValue(Person or Group column value(s)). Utilizes SharePoint Add-in: SMS Gateway Connector (SMS Via SharePoint... More information