I don’t think it’s interesting to set the use of failover gateway as mandatory, the provider doesn’t always have a failover gateway, and from the performance point of view, each call will be made twice, which increases the call processing time.
Hello, I don’t think is optional. It will not save the data if a Failover GW Name #1 is not selected. Please see screenshot of the actual demo on ASTPP website
Yes, but in my tests it tries 2x on the same provider, which is little for a call, but when we talk about a large number of calls, the ideal is to save processing.
If you have such a large number f calls, then probably a backup provider would be in your interest in case your sole one does go down for outbound calls.