WIP300 configuration
Network Profile

NAT	STUN
STUN Address	stun.callwithus.com
STUN Port	3478

SIP account settings

Phone Number	username
Auth ID	username
Auth Password	password
SIP Domain	callwithus.com
Proxy Address	sip.callwithus.com

Advanced settings

Reg. Timer(sec)	120
Codec	AUTO
Pkt Time(ms)	Default
Outband DTMF	ON