Talk:Telephony copper plant retirement in the United Kingdom

International PSTN interconnect
Speaking of the global PSTN, I'd be fascinated to know how British telcos are going to interconnect with other countries which still perform international interconnection via circuit-switched links -- if there are any, that is; are international circuit-switched trunks still a thing, or is international interconnection all VoIP now?

I'm thinking of places like Bhutan, Chad, etc, which are generally late on the uptake of new technologies. Do they have large-scale VoIP gateways for this? Would it be, for example, cheaper for a UK telco to haul VoIP traffic to a nearny international PoP and present it to the local telco via a VoIP gateway there? Or do they do TDM-over-IP to these locations and have a UK-based VoIP gateway, and just a couple of routers and plug-in 1U Ethernet IP-to-TDM boxes at the far end? &mdash; The Anome (talk) 14:57, 4 October 2023 (UTC)