Message from Clickatell.com..
"We have received notification from Rogers Communications in Canada of their intent to block any A2P (application-to-person) messages sent to their subscriber base as of November 15, 2017. All messages sent to Rogers Communications customers from non-wireless service providers will be blocked."
This will no doubt apply to all SMS providers, not just Clickatell.com.
This means ABPro SMS in Canada will be blocked to anyone on Rogers' network .
As I am in Canada, and use Rogers, it will limit my ability to support SMS from ABPro.