Could just as easily be an inbound trunking issue for Anveo. If I had to bet where the issue is...my landline with Comcast that has never had an issue in the 4 years I've had it or the service with Anveo I've had for a week, my guess would probably be the latter.
Doesn't seem like any others are having issue, so may just be localized. Can't even open a trouble ticket with Anveo though to have them check into it, unless I want to pay them $5.
Generally unimpressed with Anveo.