Skuzzy you old fart you do realize the bigger better faster networks are popping up all the time? That old cables are being given new life with CDWM?
NZ's Telecom has just revealed (worst kept secret) their new network plan, probably 100Mbps fibre to the home, VoIP, video on demand, VoIP superexchanges.
If done correctly you can squeeze more bandwidth out of old cables using data than you could with just voice these days. I can take a bit of copper cable and squeeze 10Mbps out of it, whereas an old voice circuit could only squeeze 33000bps fdx. If VoIP is clogging your infrastructure then you haven't invested in keeping your infrastructure up to date.
Even the price of routing and firewall equipment to slot into the networks has dropped dramatically. Look at the price of a Juniper M10i , its the same price you'd have paid for a 10Mbps (or less) router a few years ago (I hear Juniper are selling T640's as edge routers in Asia now - thats at least 40gbps coming into a building).