The SIP FXO/Line port page configures SIP gateway FXO/Line ports to support voice calls from IP networks to the PSTN. Once FXO ports are configured and Survivability is enabled, FXO ports can act as a LAN side gateway if the softswitch becomes unreachable.

This section includes the following topics:

Before you Begin

Before configuring the FXO ports, verify that Survivability is included with your license:

  1. Choose Network from the Configuration Menu.
  2. Scroll to Registration Status.
  3. Click View License Key.

To configure Survivability, choose VoIP > Survivability and refer to Configuring Survivability.

Note

The EdgeMarc 250W requires that a phone be connected to PSTN FXS port 4.

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