Hi,

Not using username parameter in gateway is causing following OPTION message being published-

OPTIONS sip:192.168.1.30;transport=udp SIP/2.0
Via: SIP/2.0/UDP 59.90.193.54:5080;rport;branch=z9hG4bKZ5D672rZgta9N
Max-Forwards: 70
From: <sip:(null)@192.168.1.30;transport=udp>;tag=ZS9p1ZN164S4Q
To: <sip:(null)@192.168.1.30;transport=udp>
Call-ID: a78e7d46-c2c1-122f-d9a3-0013a9866b3c
CSeq: 23455584 OPTIONS
Contact: <sip:gw+192.168.1.50@59.92.192.53:5080;transport=udp;gw=192.168.1.50>
User-Agent: FreeSwitch
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY
Supported: timer, precondition, path, replaces
Allow-Events: talk, hold, refer
Content-Length: 0