Typical BT100 configuration for registering with us.voxalot.com, using DHCP (non-fixed IP address) and running behind a router.
BT100 Series setup for Voxalot use.
Note the Stun Server is stun.voxalot.com.au:3478
If using Eu or Au servers please change the server fields accordingingly for both the Sip server and the Outbound Proxy :
eu.voxalot.com or au.voxalot.com