Woody Alan
Established Member
Just to add some clarity and confusion . In small exchanges (mostly rural) the only broadband equipment will be BT Wholsale. All providers will have access to this equipment to resell their product. So whichever provider you have will use the same equipment and Openreach line to deliver that product to you. That does not mean there are not Backhaul network issues with how much bandwidth the provider has purchased and therefore how much throttling occours. All customers will be under the contention ratio within the rack they are connecteds to with the backhaul fibre connecting that rack into the main network. Voice will be provided by the BT switch network.
In larger exchanges where it made commercial sense at the time bigger providers will have their own equipment to provide broadband and voice and exclude BT wholesale entirely. It is possible therefore their may be ties between e.g. Sky and ZEN (random selection) to resell between them as Sky may be more competitive in the reselling market than BT Wholsale.
Fibre (which has always been marketed confusingly) is either FTTC (fibre to cabinet) and last stretch on the D side network of copper to serve a customer, or FTTP fibre direct into the premises. These are Openreach (Wholesale selling equally to service providers) owned products. Again the caveat being unless it's a new housing estate, which say Virgin got into first they will then have complete coverage of that estate with their own network and BT will not. In this instance Broadband and voice (VOIP)are both over the fibre. This is the case with any newly built estate. To complicate it further the FTTP roll out under the government contracts only serve Broadband over the fibre (unless you specifically get a VOIP service) and your voice service will be over a hybredised Fibre copper connection (usin both copper and fibre).
The issue with the smaller providers is if you want to connect to FTTC and you are the only ZEN customer on that cabinet and there are no other ZEN customers on the collection of cabinets connected to that particular headend they would have to pay for a 1 gigabit connect to that cabinet to connect into the backhaul network and it won't cost in for one customer. Obviously as time goes on that scale increases.
Inevitably the above will not be the full story, or only solution, and clearly I don't pretend to know the ins and outs of any retail business costings or practice, but I do have an engineering knowledge of some of the mechanism, so please don't rip me to shreds. I am trying to give an insight to alleviate some of the misunderstandings of how it all works or open further debate if required.
Alan
In larger exchanges where it made commercial sense at the time bigger providers will have their own equipment to provide broadband and voice and exclude BT wholesale entirely. It is possible therefore their may be ties between e.g. Sky and ZEN (random selection) to resell between them as Sky may be more competitive in the reselling market than BT Wholsale.
Fibre (which has always been marketed confusingly) is either FTTC (fibre to cabinet) and last stretch on the D side network of copper to serve a customer, or FTTP fibre direct into the premises. These are Openreach (Wholesale selling equally to service providers) owned products. Again the caveat being unless it's a new housing estate, which say Virgin got into first they will then have complete coverage of that estate with their own network and BT will not. In this instance Broadband and voice (VOIP)are both over the fibre. This is the case with any newly built estate. To complicate it further the FTTP roll out under the government contracts only serve Broadband over the fibre (unless you specifically get a VOIP service) and your voice service will be over a hybredised Fibre copper connection (usin both copper and fibre).
The issue with the smaller providers is if you want to connect to FTTC and you are the only ZEN customer on that cabinet and there are no other ZEN customers on the collection of cabinets connected to that particular headend they would have to pay for a 1 gigabit connect to that cabinet to connect into the backhaul network and it won't cost in for one customer. Obviously as time goes on that scale increases.
Inevitably the above will not be the full story, or only solution, and clearly I don't pretend to know the ins and outs of any retail business costings or practice, but I do have an engineering knowledge of some of the mechanism, so please don't rip me to shreds. I am trying to give an insight to alleviate some of the misunderstandings of how it all works or open further debate if required.
Alan