I have had many Asterisk distros running on a VMwas server for almost a year now and they were all running fine (apart from some minor voice quality issues) so I thought to myself, let’s get rid of VMware and start running physical, now that I know Asterisk pretty well (I thought).
So I formated my Dell 1650 server (which is publicly hosted) and built Asterisk1.4.18 on CentOS5 following the instructions on this website and things went smooth as without even a glitch. At the end of the successfull installation I went on and installed A2B1.3.2 for billing.
I was wrapped with the way things went (asfter all i practiced this exact build on my sandbox many times over), so I configured my 12 odd extensions, my SIP trunk to my faithfull provider among other Inbound rules etc…
AFter every things went according to plan, I pikced up my trusty Cisco 7940 and made my fist IP-to-IP. I was expecting the quality to be much better than my previous VMware setup (since almost every one advices against running production Asterisk in VMware environment)
And surprise…it was horrible. There is a continous metalic noise at the background that makes voice quality really bad. This is a one way thing, meaning the other IP phone at the far end (Called party) is hearing me loud and clear but not me…
So trying to troubleshoot this issue, I have looked at my setup and made sure that every thing is identical to what it was before, extensions, contexts, Codecs used, IP phone setups, SIP trunk, Provider, Internet access etc etc…
I am at a loss and very much frustrated. THERE must be something wrong in the way that I built this server.
I really appreciate any pointers or directions, where can I even start to troubleshoot??