Proper Ports to Open for SIP and RTP

This article explains what ports need to be open for remote phone and/or carrier connectivity, as well as the IP's of our SIP Trunking service to white-list and recommendations for SSH.

Opening ports on your router has security implications! Please proceed with caution.

Remote Phones

Remote Phones require multiple ports to be opened to function properly. For basic call functionality SIP and RTP ports must be opened. To allow remote phones to download their configuration files FTP will need to be opened. For Evolution to provide time to the phone(s), NTP ports will also need to be opened.

SIP: UDP port 5060

RTP: UDP ports 10,000 through 20,000

FTP: TCP port 21

NTP: UDP port 123

Note: opening ports in your firewall has security implications. It is highly advised to lock down the SIP and FTP port(s) to known IP addresses.

SIP Trunks

For SIP trunks you will need to open the following ports:

SIP: UDP port 5060

RTP: UDP ports 10,000 through 20,000

Note: opening ports in your firewall has security implications. It is highly advised to lock down the SIP port(s) to the IP address(es) of your carrier(s).

IP's for Intuitive VoIP Trunks

For Intuitive VoIP trunks you will need to open the standard SIP and RTP ports. It is highly advised to lock down the SIP ports to the IP Addresses listed below. RTP needs to remain open.

SIP: UDP port 5060

RTP: UDP ports 10,000 through 20,000

Known IP's to allow for SIP: 64.136.174.30, 64.136.173.31, 64.136.174.35, 209.166.154.70, 64.136.174.20, 192.240.151.100, 64.136.173.22

SSH Access for Support

For Intuitive Technology support personnel to remotely access and support your system you will need to allow SSH access.

SSH: TCP port 22

Known IP's to allow: 162.243.13.229

Note: SSH access allows complete control of a Linux PBX. Locking down this port to known IP's is highly recommended!