Little known fact: You can email people text messages. We use it all the time on SCADA systems to provide text alerts to operators.
The format is: phonenumber@providerserver. Below is a list of the servers for Canadian mobile providers.
Bell Mobility/President’s Choice
txt.bell.ca
Fido
fido.ca
Koodo
msg.koodomobile.com
MTS Mobility
text.mtsmobility.com
Rogers
pcs.rogers.com
Telus
msg.telus.com
Virgin Mobile
vmobile.ca
Sasktel
sms.sasktel.com