If you plan on using phones or accessing your Digium Switchvox PBX from remote locations such as home or a hotel, your network administrator must forward certain ports back to your PBX. (There are other ways to reach your server as well, such as VPN tunnels and SIP gateways, but we’ll concentrate on Port Forwarding for this article.) That way you can reach your Switchboard panel or use the Switchvox moblie applications with ease. You can do this by entering either the Public IP address of your Switchvox server (Such as****) or if your network admin has set it up correctly, a fully qualified domain name (Such as http://pbx.yourcompany.com/). Please see your network administrator for your Switchvox address.

The following is a list of ports that are used by the PBX. Depending on your requirements, you can forward just the ports needed by phone, just the web access ports, or all of them.

**Used by Remote Phones**
UDP5060SIP signaling port needed for phones outside your network
UDP10000-20000RTP audio ports needed for phones outside your network
**Used for accessing the PBX web interface remotely**
TCP80HTTP port for remote web voicemail access
TCP443HTTPS port for remote web admin access
TCP5222 & 843**SMB Systems Only** – ports for using the Switchboard remotely
TCP5269**SMB Systems Only **– port for remote XMPP (Jabber/chat) access ([Extensible Messaging and Presence Protocol](http://en.wikipedia.org/wiki/Extensible_Messaging_and_Presence_Protocol "http://en.wikipedia.org/wiki/Extensible_Messaging_and_Presence_Protocol"))
**Used by Tech Support Access**
UDP1194Must be open to outgoing traffic
Please note that your Swtichvox administrator will also need to enable the “Allow Nat Port Forwarding” option in the **Machine Admin ****>**** Network Settings** section of your Switchvox Web interface. You will also need to add remote access rules under **Machine Admin > Access Control** in order to be authorized as a remote user. For more detailed information on Switchvox network settings, including Static IP vs. DHCP network address schemes, PBX and phone placement, and Quality of Service (QoS), please refer to the Digium knowledge base article found here: [http://kb.digium.com/entry/303/](http://kb.digium.com/entry/303/ "Digium Knowledge Base") or call Chromis Technology at [602.357.8070](http://www.chromis.com/questions/ask).