Firewall Configuration for the Apex Cloud Telephony Web Interface:

Preferred method: If your Router / Firewall Supports Web Filters

Allow all outbound traffic towards T2 Data Centres (UDP & TCP):

*.telecom2.net

*.apexcloud.io

If your Router / Firewall does not support Web Filters

Allow all outbound traffic towards T2 Data Centres (UDP & TCP):

217.73.64.0/20 (Or Network: 217.73.64.0, Netmask: 255.255.240.0)

IP Whitelisting is not recommended as we may add IP ranges to our platform at any point without prior notice. It is your responsibility to periodically check on this page and update your IP rules.

Firewall Configuration for Apex Cloud Telephony Phones:

SIP-ALG Must be disabled if present on your router.

Preferred Method: If your Router / Firewall Supports Web Filters

Allow all outbound traffic towards T2 Data Centres (UDP & TCP):

*.telecom2.net

*.apexcloud.io

Allow NTP Port 123 UDP traffic towards pool.ntp.org and *.pool.ntp.org 

Allow Traffic towards the phone provisioning service (Port 80 & 443, TCP):

https://dm.yealink.com

https://api-dm.yealink.com

https://rps.yealink.com

If your Router / Firewall does not support Web Filters

Allow all outbound traffic towards T2 Data Centres (UDP & TCP):

217.73.64.0/20 (Or Network: 217.73.64.0, Netmask: 255.255.240.0)

Allow Traffic towards the phone provisioning service (Port 80 & 443, TCP):

52.71.103.102

52.29.124.181

3.124.165.251

35.156.148.166

106.15.89.161

47.75.58.202

47.89.187.0

Allow all outbound NTP traffic on port UDP 123

IP Whitelisting is not recommended as we may add IP ranges to our platform at any point without prior notice. It is your responsibility to periodically check on this page and update your IP rules.