Standard HTTPS Port
Depending on your organisation's region, you will need to communicate on the standard HTTPS port 443 (TCP) with one of the Ringotel servers listed here. This is necessary for establishing a secure connection with the Ringotel servers.
RTP Ports Range
In addition to the standard HTTPS port, it is also important to have the full RTP ports range open for outbound connections to the following IPs:
75.2.52.102, 99.83.156.227, 15.197.206.93, 3.33.240.193
This range includes ports 1024-65535 (UDP) and must be open for users.
Should you need further assistance, feel free to reach out to our support.