As a general matter, you will not need to do anything with these IP addresses, because the provisioning servers will take care of SIP Device configuration. We will provide you with domain names that will resolve to these servers as necessary.

In certain situations, however, it may be necessary to allow these ports in your customer's firewall. We recommend utilizing the subnet ranges, as there may be more than one server on one Geo Node that can serve the same function. The following are Subnet Ranges and IP addresses that are in use by our systems:

  • 70.42.44.0/24 - New Jersey
  • 75.98.50.0/24 - Dallas
  • 216.24.144.0/24 - Las Vegas
  • 199.21.246.224/27 - Minneapolis
  • 207.254.80.0/24Atlanta
  • 18.209.52.107/32 - Fax ATA

The following protocols and ports are used by our systems:

ProtocolPort/sUse
TCP80, 443Web UI's and provisioning servers
TCP80, 442, 443Instant Fax server
TCP7000, 7001Fax ATA
UDP5060SIP signaling
UDP8889 Web Meetings and Video Conferences
UDP17000-35999RTP


The following ports are used by ReachUC:

  • TCP - 443, 4998, 5060, 24998
  • UDP - 4998, 10000-65535(for RTP/RTCP packets)