Yep, even better is it worked with the Vonage V-Portal, it even showing visually what I dialed.

PS: I want to replace the hadset cord as it's super sticky, smells funky, and has a slightly scratching sound.

I want it to look really retro and install a straight cord, not a coiled one. What kinda cord do you reccomend? New is what I'm after, but also, what length did the straight corded 500's have?