anyone seen this anomaly?

[stevech]

Filing a trouble ticket with VoIPo won't do me much good- hard to reproduce.

Today: Important conference call. Using big corporate bridge 800 number I've used a lot previously, with VoIPo.

Dial in OK. Logged with DTMF. Hear people. A minute later I hear dial tone.
I hang up (go on hook). Off hook. Redial. I hear the conference again, without a login challenge. A minute or so later, I hear dial tone again.

I'm angry. Bridge tells everyone I've logged out, as if I'm rudely bailing out.

I redial on my POTS line and all is fine.