If you use a firewall that limits access from and/or to certain IPs, please whitelist the IP ranges listed below for both TCP and UDP.
| Subnet | Start IP | End IP |
|---|---|---|
| 185.19.236.0/22 | 185.19.236.0 | 185.19.239.255 |
| Service | Port number | |
| SIP | 5060 UDP 5060 TCP 5061 TLS |
|
| RTP | ANY PORT - UDP | |
| Provisioning | 80 TCP 80 TLS 443 TCP 443 TLS |
|
• Switch off Stateful Packet Inspection (SPI).
• Switch off SIP Application Layer Gateway (SIP ALG).
• Switch off Strict Security in the firewall options.