How can I send SMS messages reliably to different global destinations?
You should setup several SMS service provider connections, and you should configure backup routing. When you use multiple service provider connections, each connection has a name. In the routing table you can refer to this name when you create outbound routes. Outbound routes determine which connection will be used to send a particular message. If you want to increase reliability, you need at least two service provider connections. For example one can be an IP SMS connection and another can be a GSM modem connection. To configure the GSM modem connection as the backup connection for the IP SMS connection, you need to configuring the name of the IP SMS connection as backedup connection in the routing rule of the GSM modem connection in the outbound SMS routing table. Backup SMS routing will make sure, that if the IP SMS connection stops functioning, the GSM modem connection will take over and your messages will be sent.