Simple Traversal of UDP through NATs (STUN) Settings
STUN NAT Traversal
$%SIP_StunServerType_R#$
Server Address
Server Port
Binding Period
second(s)
SIP Waiting Time
millisecond(s)
Local SIP Port
SIP Line Using STUN
SIP $%SIP_PhoneLineTab_R#$
Use STUN