unbundling of phone services

Matthew S. Hamrick mhamrick at cryptonomicon.net
Wed Jun 13 05:05:37 CEST 2007

Yeah... good point. I believe one of the ways the UNE system could be  
configured was where data from the subscriber was transported to a  
distant physical location via ATM, SoNet, etc. In fact, most of the  
centralized modem banks in the states were replaced with banks of  
modems at each CO. Modem calls were terminated at the CO and data was  
carried over frame relay over ATM to various ISPs. This made sense  
for the ILECs as it cut down on the number of circuits that had to  
traverse the network.

So that could be a model. Maybe the third party equipment could be  
located at the carrier's data center and hook directly into their  
terrestrial SS7 network. That way it would be accessible to the whole  

-Matt H.

On Jun 12, 2007, at 4:49 PM, Jon Radel wrote:

>> From:
>> "Matthew S. Hamrick" <mhamrick at cryptonomicon.net>
>> A Mobile LLU (Local Loop Unbundling) system would be slightly  
>> different
>> that an MVNO. MVNO's mostly differentiate themselves on branding  
>> instead
>> of services. LLU is what you get when you force ILECs (Incumbent  
>> Local
>> Exchange Carriers) to allow third parties to connect to the local  
>> loop
>> (the wire running from the carrier's central office to the customer
>> premises.) The mobile equivalent would be to force the wireless  
>> network
>> operators to provide "value add" third parties with rack space in  
>> mobile
>> base-stations or like UNE/P an ATM interface to data, video or voice
>> data from the handset without passing it through the carrier's  
>> network.
> One huge difference I see between a wired CLEC and a mobile LLU as you
> describe it is that a CLEC can start small by putting equipment  
> into the
> COs of a single marketing area and potentially have a viable  
> product.  I
> have trouble seeing too many customers getting exciting about a mobile
> product that has spiffy features but can't roam, so you need to put
> equipment in an awful lot of racks.
> Or am I missing something?
> --Jon Radel
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