Occasionally whilst in a call with one individual client - his
sentences will repeat two or three times.
The call quality is spectacular however it almost sounds like there is
someone in the middle of the call who is messing with me.
I believe he is using an iPhone on the Rogers network.
At one point I heard what I thought were foul obscenities (which did
not sound like him) - this is freaking me out...
Is it possible to perform some type of MITM attack on an open 5060
port? Could it be someone with my 201 sip secret who is
simultaneously registering with my box?
I checked sip show peers during the call (which reported my cisco
phones IP) and watched sip set debug - didn't appear as if anything
odd was happening.
I am a bit worried about this, what should I do to determine whether
it is an attack or just an issue with my system? Like I said, I only
experience it with one client only.
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