I am attaching some information that I did find about various systems, but George spoke to me briefly on this topic Tuesday and I did some digging with Blackboard. Blackboard does have a notification module beyond email. Since I don't have access to Blackboard, I cannot be entirely sure what everything looks like, but that's what it appears to be.
The students can opt-in and fill out the information that they'd like to receive through Blackboard. The notifications can be set up for automatic notification. I do not have access to Blackboard but I did build a sample site on Coursesites to test what UML might have available per George's suggestions. From there, I found that we can enable Dashboard (default), Email, SMS and Text to Voice. There is a Mobile option, but I can't confirm just yet that we have the Mobile option enabled.
Students can utilize Blackboard Learn to notify them when these events occur:
Here is the general information from Blackboard about notifications
I apologize for the lengthy descriptions but I wanted to let you know what I had found and recommended.
The LearningForce initiative utilizes an application called Remind to send push notifications, text messages or emails to facilitation communication students who opt-in to participation. The library staff will create and present a sample communication strategy for approval and revision. Those interested in this application can send reminders to students about starting papers, reviewing materials, signing up for projects, and even seeking additional help. Attachments and links to learning tools can be shared; some examples can be reference Libguides, writing standards, and even bibliographic instruction. If desired, professors can use the application to communicate regularly with students either through 1-way notifications or 2-week capabilities, allowing both the professors and students to communication without sharing their private telephone numbers. Additional information about this application can be found at http://libguides.uml.edu/remind/remi
Sample Outreach to Faculty