<xwcg_param enabled="1" value="\Accounts\Account_0\UseLocalIP=0" />

Define your SIP Server connection as usual.
UseDNS         = If your SIP server supports configuration by DNS, the phone reads SIP server data like “Realm” or “proxy” from the DNS header returned by the DNS server.
UseLocalIP= Default value is “behind NAT” (Value=1). Some SIP services & routers require (0)
SipPort         = The SIP Port which shall be used for this account

Parameters

Description

UseLocalIP

Boolean

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