A Canadian acquaintance would like to run his own SIP-based PBX in his company. He's apparently having a hard time finding a good SIP provider, as most of them offer only hosted solutions or virtual PBXs. Since he'd like to run his own hardware in-house, that's not what he needs.

I found http://voicenetwork.ca/voip/voip.php?page=3
Are they any good, or are there others out there someone could recommend?

Cheers,

-Peter