Virgin do deliver a lot of leased lines with BT tails...
---------- Post added at 21:21 ---------- Previous post was at 21:20 ----------
Quote:
Originally Posted by qasdfdsaq
I thought someone mentioned once VM have some reliance on BT's exchanges for their POTS service?
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No, you're thinking of a maintenance contract with BT on some ancient PDH kit.
VM's POTS service is delivered via in-cabinet MSANs connecting to a PDH network which then goes to the SDH network.
---------- Post added at 21:26 ---------- Previous post was at 21:21 ----------
Quote:
Originally Posted by MrIca
I've seen equipment in BT exchanges labelled as Virgin Media, the label is placed on top of another that says NTL though obviously in other areas this would be different. They aren't DSLAMs. It just seems odd that they wouldn't just take the POTS stuff back to the hubsite and then connect into BT's network from there.
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Indeed not. They'll be edge routers/switches to take traffic onto VM's MetNet.
Quote:
Originally Posted by MrIca
One I'm thinking of in particular runs from the BT exchange (I've not seen any equipment in that exchange with a VM label on it) right down to the little council estate in the small town, nowhere near any businesses. The council estate is the only cabled part of the town. The town is linked to the rest of the VM network via a duct running along country roads a few miles to where the hubsite is.
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Must be some VM kit lurking in that exchange somewhere to take hand-off from BT. Should be buried in the OLO hostel with the LLU DSLAMs and other goodies.
EDIT: One actually quite obvious thought is that that exchange was being used by VM for BT Wholesale DataStream services and was a handover point, or there may have been some leased circuits on BT tails going in there which are now decommissioned. Makes sense to take the tail back to the nearest cabled area so that it can then use the existing ducting there rather than a brand new fibre run all the way back to the MetNet POP.