Comcast Business Suitability for VoIP?
We installed an 8x8 VoIP phone system about 6 months ago ontop of our CC Business Internet, and things have generally worked well. However, we have weeks periodically where there is more upstream quality degradatation (people can't hear us, but we can hear them). We've had CC replace the modem, and do all of the normal troubleshooting, but today, for example, there were 7 15-second patches in about 20 minutes where PingPlotter showed very high latency and jitter, and in one patch there was 100% packet loss for about 15 seconds. PingPlotter looks to me to be showing this in the hops after the ping has left our premises (see image below). Some days and weeks there is very little of this; some days and weeks there is more.
My question is: is it a reasonable to expect consistently hiqh quality VoIP traffic on CC Business or should I be lookint at fiber or other dedicated line solution?