I use VOIP.MS with a Grandstream GXP2140 4-line desk phone. On
its screen, each line normally shows green when not in use. The
firmware is 1.0.7.15.
For the past two weeks or so, at times when I'm not using the phone,
each of the lines goes out for roughly 15 to 30 seconds, one at a time,
randomly. During an outage, the line in question goes red. The vast
majority of the time, all lines are green.
During such an outage, on the VOIP.MS control panel, the sub-account
status shows as unregistered, and when I attempt to get a dial tone on
a red line, I can't. These facts suggest that it's a real outage. (However,
I have no basis yet for concluding that VOIP.MS is to blame.)
My lines are split between SANJOSE2.VOIP.MS and DALLAS.VOIP.MS,
so the particular server doesn't seem to matter. I now run ping on
both of those servers 24/7, and the ping is flawless, even during an
outage.
To troubleshoot, I've installed a second GXP2140 next to the original,
registered to a different set of VOIP.MS sub-accounts on those same
two servers, and the same thing happens randomly on the second
GXP2140.
I haven't changed any network hardware lately. I'm not using QOS
on my router (ASUS RT-N12, hardware version D1).
There are other things that I could try, like swapping in a different
router or modem, or testing my setup from a different ISP. But at this
point, it's easier to find out first from you guys whether you're seeing
anything similar.
Have you seen anything similar on your VOIP.MS setup lately?
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