The exsisting telephone network deserves to die. Already SIP combined with HMP is more feature rich then any over priced ISDN service a telco carrier is willing to overcharge for.
Throw on top of that how outrageous lineside telephone equipment is from big Players like Avaya and Nortel, and you quickly realize that computer based VOIP is probably the only thing that can free us from the evil non-compeititive telecom industry.
Well good... it might have been a contender to get as high a score as Dungeon Siege from FiringSquad if seamless world was in... but it looks like Dungeon Siege can retain its crown. ;)
