...
Outgoing call: from UC SIP extension 3002 to the gateway through relay trunk 1008;
Incoming call: call from an outside line to the gateway, through SIP trunk 1008 to UC, and then send the call to the 3002 SIP extension through UC;
...
...
Outgoing call: from UC SIP extension 3002 to the gateway through relay trunk 1008;
Incoming call: call from an outside line to the gateway, through SIP trunk 1008 to UC, and then send the call to the 3002 SIP extension through UC;
...