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If you see the same scenario happening to you, skip directly to the next section "Is this a Timing related issue or system overloaded"
If you do not see any overruns incrementing over time, continue with the following steps.
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The following steps will isolate your server from the connected lines, and run a load test to determine if the reasons for your issues are due to your server hardware and/or configuration.
Proceed to the Wanpipe Load Test page in order to being
Important details to understand from performing the Wanpipe load test:
your current configuration will be overwrite, so it is very important not to forget to back up your /etc/wanpipe directory (as detailed)
If you experience 'overruns', this means that the symptoms you are experiencing are due hardware or software configuration on your server.
If your Sangoma Card has a hardware echo canceller, try changing the DAHDI chunk size, to reduce the load on your system. This may completely resolve your issue
NOTE: you may also change the DAHDI chunk size if your card does not have a hardware EC, if you do not need EC in your environment (hardware or software)
if you have re-verified the steps at the beginning of this page, you may need to try new hardware.
contact sangoma support at support.sangoma.com and create a ticket.
If everything was successful with no errors, then most likely the reason for your symptoms is due to at clock issue on at least one of the lines connected to the Sangoma card
proceed to the next section if this is your scenario.
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For more information please refer to Overruns.