Being the idiot I am, I didn't think to plug in a phone and try for outbound service 'till last night. Sure enough, I could make outbound calls. The sound quality is very good. I called my cell from the VoIP house line, and it was clear and loud. Inbound was still going to the PacBell landline. Same deal this morning when I got up. But by the time I got to work, inbound calls were now going to the VoIP box. (Or at least the Speakeasy voicemail system, which I enabled temporarily.)
The Speakeasy/Level3 voicemail is a nice service, too. I don't plan to use it long-term, since I'm too fond of the Caller ID-selected greeting messages and scriptable voice menuing that Phlink allows me to do. But it's web-configurable, and you can download greetings as WAV files (8 kHz, 8-bit, μ-law compressed mono,) and have it mail you a notice of messages ("Incoming Voice Mail from 7604314248 - MOMENTUM COMPUT",) as well as mailing you the message itself (to a different address if you like.) The common feature set is present--call interrupting, 3-way calling, CNID, call-forwarding (selective, on-busy, no-answer, or total,) etcetera. It's all configurable via star codes on the phone, or through the web interface. There's a web and a Windows desktop interface to actually manage calls live. I'll probably try that out at some point. This software is clearly written for a business user, but it's nice they don't restrict it to just their "business VoIP" customers. (The web interface uses an ActiveX control, and isn't usable outside IE, so that's a down-check.)