It's hard (for me at least) to explain. Somehow I might have confused you by even mentioning BT Wholesale earlier, when I was just equating TT Business Wholesale to it. I wasn't meaning the Pulse8 Home packages ran on BTW.
The confusion is caused by TalkTalk providing a service to resellers, and calling it TalkTalk Business Wholesale. Easiest perhaps to rephrase it as TalkTalk Wholesale for Businesses that are Resellers.
TalkTalk's own service has a Retail product range and a Business product range.
BT that many of us use has Home user and Business user ranges. Plusnet has Home user and Business user ranges. Both of those ISPs sell only BT Wholesale services. But what if BT Wholesale was renamed to BT Business Wholesale? Purely the name would change, not the services.
Similarly, in reverse, TalkTalk Business Wholesale could have been called TalkTalk Wholesale.
Think of John Lewis Broadband. That is basically a resold Plusnet service running on Plusnet routers and backhaul. With Plusnet relying on BT Wholesale.
Pulse8 has always had two ranges, Home user and Business user. The Home ranges were TalkTalk provided by TT Business Wholesale but running on the same "network/backhaul/systems" as TalkTalk Retail. At higher priority than TalkTalk Retail itself. In a similar way that John Lewis runs on BT Wholesale via the Plusnet internal network for the ISP services.
The Pulse8 Business ranges may or may not have been on the same but with higher priorities still, I don't know. The same as on ADSL Max BT Wholesale had a higher level service called Max Premium or something like that. Higher priority through the network and 832Kbps upstream instead of 448Kbps.
Puilse8 recently upgraded so the Home ranges, and obviously now if not previously the Business ranges, run directly on the TalkTalk (Business) Wholesale backbone. Neither is a resold TalkTalk Retail service.
It's more like John Lewis ditching Plusnet and becoming a stand-alone or more likely a white label
ISP on BT Wholesale. Which is what years ago Vodafone were, and the Post Office were until they handed it over to TalkTalk instead. EE Broadband even now I think is BT Wholesale white label. No routers or internal network of their own is the best way of describing it.
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