NAT Traversal (also known as RTP Latching) allows the SBC 1000/2000 to register and communicate with SIP endpoints that are behind NAT routers. The most common example of using NAT Traversal is a SIP phone or soft-client behind a home gateway, communicating with an SBC an on the public internet. The SIP Phone behind the NAT could not properly communicate with the SBC 1000/2000, as the client used its local private address in SIP, but the SBC could not directly reach this address. NAT Traversal gives the SBC the ability to communicate with SIP endpoints behind NATs, regardless of the client's address.
Once a NAT Qualified Prefix table is created and configured, it can then be selected as part of the SIP Signaling Group's Inbound NAT Traversal configuration. See Creating and Modifying SIP Signaling Groups.
Working with NAT Qualified Prefix Tables
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to SIP > Qualified Prefix Tables
NAT Qualified Prefix Tables
To view a Qualified Prefix Table's properties:
- Click the popup(
) icon next to the entry you want to view. - When you are finished, close the window.
To delete an entry, simply select the checkbox next to the entry you wish to delete, then click the Delete (
) icon located at the top of the window.
Overview
Content Tools