I was ready to give them benefit of doubt, after last Wednesday. I, too, have several years of good experience, and this is but one of a few outages.
Then it happened again today. This time only two hours, and only garbled communiciation. I tried forwarding my number (I could get web access, although slow). That didn't help, however, as the forwarded call was still garbled, apparently the routing through PP switch was enough to clobber audio, even though the call forwarded to my cell phone.
I am going to need a better explanation, and what is being done to prevent recurrence.