The information in this article is intended for network administrators. If you are not familiar with how to configure these settings on your network, refer to your network administrator or the manufacturer of your router.

Port Forwarding directs unsolicited connections from the internet to a device on the internal network. Alternately, Port Triggering only directs connections from the internet to a device on the internal network when that device first initiates a request. To increase the security of your network, we recommend using Port Triggering when creating rules for inbound and outbound traffic on your network.

Allow Outbound Traffic

The SIP protocol, which controls VoIP calling, can range from ports 1025 to 65535 as determined by your network equipment. For the greatest compatibility, we recommend creating rules that allow your phone to communicate on all ports. The following ports are used for outbound communication from your phone to our servers.

Allow Inbound/Outbound Traffic

Your network must allow inbound and outbound traffic from RTP ports 10000 - 65534 to prevent one-way or no audio on phone calls. For the greatest compatibility, use a supported modem/router with recommended settings.