<?xml version='1.0' encoding='utf-8' ?>
<tocdata>
<item name="Non-facility associated signaling (NFAS)" url="nonfacility_associated_signaling_nfas.html" />
<item name="Setting up and using NFAS" url="setting_up_and_using_nfas.htm" />
<item name="D channel backup" url="d_channel_backup.html" />
<item name="Handling D channel failure" url="handling_d_channel_failure.htm" />

</tocdata>
