We strongly recommend that customers firewall based on subnet rather than IP due to potential changes to configurations in the future. That said, subnets are fixed and will not change.
IP Address Information
| Location | IP Range Begin | Subnet Mask |
| Colorado Springs | 64.111.17.64 | 255.255.255.240 |
Port Information
| Service | Ports |
| SIP | UDP/5060, TCP/5060 |
| RTP | UDP/10000-20000 |
| T38-RTP | TCP/4000-5999, UDP/4000-5999 |
| Jabber/Chat | TCP/5222, TCP/5269, TCP/5280 |
If you have any questions about firewalling appropriately, please don't hesitate to contact us!
