My PBX is critical to my business. It has been behaving well; no complaints or problems. When I saw that I could configure 3cx to notify me about problems, I set it to do that. Now I get the following warning whenever I make an outgoing call: Call to 9144727805@(Ln.10001@Patton-4112) has failed. [ V4 10.0.0.14:5060 UDP target domain=unspecified mFlowKey=856 ] replied: 502 Bad Gateway; from IP:10.0.0.14:5060 The call goes through, but I am notified by email of the warning. Is this a problem, and if so, what do I do to fix it? Thank you.