I was playing around and learning. I opened port 5060 on my internet facing router to do some experiments.
A day later, I found thousands of SIP connection attempts per hour (all Wrong password). But Messages in the log folder also show things like:
Does it mean that someone from 155.94.65.165 was able to initiate a call attempt, although it was not successful?
I can account for all in Master.csv except:
I have no extension 1236. What does this CDR mean?
I must now go and check my IDD bill!