Networking

From Intuitive Voice Support Wiki

• Network Scope

Networking, Quality of Service, and Firewalls This section describes important information for your PBX regarding networking, Quality of Service, and Firewalls. Your PBX, SIP, and VoIP use certain TCP and UDP ports for communication. Typical LANs do not interfere with these protocols but connecting devices over the Internet may require forwarding one or more of the ports defined below. Refer to your router or firewall manufacturer for information about how to forward ports on your device.

Port	Description
22	TCP port 22 is used for SSH, a remote terminal configuration protocol. Intuitive Voice Technology uses this port for remote diagnostics and custom configuration requests. Forwarding this port from the Internet to your PBX is optional but may be required for many support and configuration requests.
69	UDP port 69 is used for TFTP (Trivial File Transfer Protocol) configuration file loads. Remote VoIP telephones and devices that are automatically provisioned require this port to be open. Forwarding this port is required if automatic configuration is desired for remote devices (devices must be supported by your PBX as a specific device. See the section Phone Extensions for more information about specific devices).
80	TCP port 80 is used for standard Web traffic (http). Forwarding port 80 allows access to the your PBX Web interface. Intuitive Voice Technology uses this port for remote diagnostics and custom configuration requests. Forwarding this port from the Internet to your PBX is optional but may be required for many support and configuration requests.
5060-5061	TCP and UDP ports 5060 and 5061 (sometimes 5062-5063 are referenced as well) are used for SIP (Session Initiation Protocol) to provide call signaling and registration information. 5060 must be forwarded from the Internet to your PBX for remote devices to register and make calls over the Internet (5061-5063 may be required). These ports are also mandatory for VoIP service provider accounts.
10000-20000	UDP ports 10000 to 20000 are used for RTP traffic (Real-time Transport Protocol). RTP is the protocol that transmits the audio for a telephone call. 10000-20000 must be forwarded from the Internet to your PBX for remote devices to register and make calls over the Internet. The whole range may not be required depending on what type of telephone you are using and how many calls you will make over your Internet connection. These ports are also mandatory for VoIP service provider accounts. Check with you VoIP service provider to verify the ports that they require to be forwarded (some service providers may require 8000 to 10000 rather than 10000 to 20000).