Maximum 3. This limit cannot be exceeded.

No. Only single IPs in "x.y.z.w" format are allowed.
Valid examples: 203.0.113.15, 198.51.100.77
Invalid examples: 203.0.113.0/24, 198.51.100.64/26

No. FQDNs are not supported; the system only accepts IP addresses.

They must be public and reachable from AI4CALL. Private IPs (RFC 1918) are rejected.

SIP traffic from/to that IP will not be accepted and calls will fail. Always verify and test the entered address.

Yes, as long as they stay within the limit of 3.

Only to SIP signaling (port 5060 UDP). RTP traffic is routed on separate ranges and does not require whitelisting.

The configuration is immediate after saving.


Some of the ai4call users