So this is a weird issue that has come up recently and I'm wondering if others are having a similar problem. I say "weird" as this is only happening when I call a relative of mine, who is a Comcast VOIP customer.

Outbound / outgoing calls placed to her number ring once and then go directly to her voicemail. This started happening a few weeks ago. It's happening consistently so much that we've resorted to just using our mobile phones to call her instead of our VOIP line. I'm not sure if it's a VOIPo problem or a problem on her end and therefore a Comcast VOIP problem where she should open up a ticket with Comcast.

No other numbers I call from my VOIPo line seem to have this issue. Anyone else have similar problems with outbound calls going to voicemail on other VOIP phone numbers?