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Background; https://discord.com/channels/1186424376300679209/1476640491884904644/1476640497497014544. we are getting SIP Transfer requests from an unknown address from retellai.

Sometimes, upon second attempt, we see a SIP transfer coming through the expected IP. is this your IP?

The call is originating from IP 18.98.16.123, but based on the subnet/CIDR you provided (18.98.16.120/30), that IP is actually the broadcast address of that subnet and isn't a usable host IP. That's likely why it's being rejected