Failover is the ability of PageGate to send an undeliverable message to an alternate host. The failover settings at the carrier level is used to redirect all the pending messages to another carrier when the original carrier can't be contacted.
For example, you could configure multiple AWS SNS carriers and tie each of them to a separate host (us-east-1, us-west-2, etc) and have one fail over to the other.
Alternately, you could configure a failover to go to a completely different method of communication. So, the program would initially try to negotiate SMS delivery with AWS SNS but if AWS is down or unreachable, you can fail over to SMTP, WCTP, SNPP, TAP or any other delivery method instead.
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