Some cable companies are ALREADY peering with one-another for voice (though only a few so far). Cable "digital voice" plans already charge a flat fee for unlimited US and Canada calling, so whether peered or not these calls are already essentially free to the end customer. Cable companies love not having to pay IXCs to handle these calls.
The real beauty of voip peering is that is allows better call quality (fewer codecs) and can also permit video telephony.
Cable companies pay to terminate to the PSTN. They're charges are just much less since they terminate so many. Many even use CLECs to do this. Or like TWC in Ohio they use Sprint.
but many offer local and regional only plans that save money to the customer (TWC is one of the majors that offer local and regional plans on top of the Unlimited). It would give people that lower their bills plus allow the Cable companies to gain more customers.
It's not about saving money for the customer by peering. But getting them on Digital Voice/VoIP and keeping them there while giving them what they want. Especially if Grandma who has TWC in NYC and wants to call her Grandson in CA on Comcast. She would be able to save money by having her local calling but also talking to him for free due to Comcast and TWC could peer and keep their calls ON NETWORK instead of going to the PSTN.
·