Hello, We are using OpenSer with RTPProxy for serveral years now. We recently changed the hardware on which OpenSer/RTPProxy is running, and upgraded all the software.
I'm using OpenSer 1.3 with RTPProxy 1.1. We are forwarding all PSTN request to our ITSP. We are doing max. 40 simultaneous calls. Since a couple of weeks our customers are complaining that their calls are being dropped, and that there is a significant amount of jitter. I have been looking for the cause of this for some time now, and have come to the conclusion that it must be somewhere between the OpenSer and our ITSP (have done serval monitoring on the customer site, and at our site). Our ITSP says everything is running fine (as usual :)), so I have to come up with some evidence that the cause is indeed with the ITSP. First thing I would like to do is check if I've optimized everyting on the (new) OpenSer server: The server is a HP Proliant DL140; a quadcore Intel processor (2.44 GHz), with 4 GB of RAM. CPU is never above 0.1% and memory usage < 1 GB. I'm running only 1 instance of RTPProxy. In the FAQ's I read that you can better run 4 instances of RTPProxy. Is this also necessary with my setup, and with the max. number of sim. calls I have? Will this have a performance-gain if I run 4 instances? If so, could this be the cause of the jitter/dropped calls? Hope someone can advise me on this... Regards, Ronald
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