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I wonder exactly what equipment. ADSL modems on the provider end, with the right software, could provide PSTN voice service-over-SIP too. It wouldn't add any

I wonder exactly what equipment. ADSL modems on the provider end, with the right software, could provide PSTN voice service-over-SIP too. It wouldn't add any substantial complexity, and could be one of those legacy services provided for the next 50 years... Running the necessary SIP servers and billing systems wouldn't be burdensome if there weren't many real users. And if there were still lots of real users, there would be lots of revenue to pay for it. I can only assume that BT doesn't have sufficient buying power to get modem manufacturers to include that in their software as a feature.

benj111 4y ago
>I can only assume that BT doesn't have sufficient buying power to get modem manufacturers to include that in their software as a feature. BT (openreach) basically have a monopoly on the infrastructure and all the consumer facing companies pay them for access (exception is virgin fibreoptic and possibly Kingston communications (Hull only)) So I wouldn't have though itd be a lack of buying power.