Line 1/Line 2 Setup

The Line Setup tabs give detailed information about the VoIP network and may be switched between Standard and Advanced view. The default view is Standard, and may be changed by clicking the button shown below:

Settings for Line 1 and Line 2 are identical.

In Standard view, a user will have the option of configuring a SIP Config tab, Features and Dial Plan settings. In Advanced view, the user is given additional options under these tabs and the option of configuring Quality of Service, Network Address Translation (NAT) and Voice Features.

Network Address Translation (NAT) - Advanced View

Settings under the NAT tab are as follows:

Keep Alive - This feature sends a packet at defined intervals to keep a firewall port open. Mode defines the type of packet sent, and may be set to None, Options, Register or CRLF. If set to anything other than "None," Interval may be set to 20 to 30 seconds; default is 20.
NAT Static and STUN- When NAT Static is enabled, a network admin may allow the VoIP endpoint to use a static port assignment through a firewall. A public address can be entered and an RTP Port and Signaling Port specified. When STUN is enabled, a VoIP endpoint can use an external STUN server to keep firewall ports open. The Server Address and Server Port can be entered in the VoIP configuration. Enabling one of these options disables the other.

Saving/Applying Changes When making changes, the user must make sure to apply changes in order for them to take affect. Clicking save changes will not apply the configuration changes to the VoIP card, but rather save them in a memory cache. If a user saves changes and navigates away from the current tab, the changes are still stored. If changes are saved yet not applied and the device is rebooted, changes will be lost. A user must click Apply Saved Changes to make the changes active.