http://tec.myfortinet.com/04_sip_trunks/e_make_test_calls/index.html Within the training lab environment, open Client 1 and Client 2 consoles if they are not already opened. From Client 1, dial 919990NN1001 to call Client 2 using its DID number (replace NN with your assigned two-digit lab number). The leading 9 is required to make an external call as defined by the dialed number match rules of the outgoing_default outbound call routing rule. Click the call button to start the call. Hugo en-US