What ISP's are still providing BUBA?

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Petrov

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#177895 18-Aug-2015 10:29

Hi Everyone

I know that a lot of ISP's are pushing to move customers over from BUBA to EUBA however due to the exchange distance limitations of EUBA, not everyone can get it.
Does anyone know what ISP's are still providing BUBA and will continue to do so?

Cheers,

sbiddle

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#1368448 18-Aug-2015 10:32

EUBA/BUBA has nothing to do with exchange distance limitations.

There are two types of customers on BUBA - those who are connected to an ATM based ASAM/DSLAM and those connected to an ISAM if the ISP has not migrated customers from BUBA to EUBA (I'd suspect there would be very few still in this boat).

So the answer is quite simply, lots.

grant_k

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#1368450 18-Aug-2015 10:34

If you're still stuck on BUBA at the end of a long line, it must be a dismal experience...

Have you looked at RBI wireless? If you have at least 1 or 2 bars of signal on a Vodafone handset, chances are you'll be able to get it. There are detailed coverage maps which will show you the options.

Petrov

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#1368461 18-Aug-2015 10:43

sbiddle: EUBA/BUBA has nothing to do with exchange distance limitations.

There are two types of customers on BUBA - those who are connected to an ATM based ASAM/DSLAM and those connected to an ISAM if the ISP has not migrated customers from BUBA to EUBA (I'd suspect there would be very few still in this boat).

So the answer is quite simply, lots.

Thanks for this. Yes sorry wrong use of terminology.

BarTender

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#1368627 18-Aug-2015 14:21

sbiddle: EUBA/BUBA has nothing to do with exchange distance limitations.

There are two types of customers on BUBA - those who are connected to an ATM based ASAM/DSLAM and those connected to an ISAM if the ISP has not migrated customers from BUBA to EUBA (I'd suspect there would be very few still in this boat).

So the answer is quite simply, lots.

Your above statements aren't 100% correct.

BUBA is the legacy technology for ATM ASAMs and Ethernet ISAMs

There is still a whole lot of customers who are on BUBA that are ISAM connected (more than half all BUBA) and that is due to the ISPs themselves not proactively moving customers from BUBA to EUBA when their cabinet gets upgraded from an ASAM.

There is also another reason why some customers haven't been moved off BUBA onto EUBA. The minimum connect rate for EUBA is higher (384k from memory) than BUBA (64k) so those who have a really really bad line out on the edge of DSL's ability can't be moved from BUBA to EUBA as their service wouldn't come back.

yitz

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#1368636 18-Aug-2015 14:34

The following table shows the maximum attenuation for Enhanced UBA variants, and the respective derived minimum speeds:
Service Variant Minimum Speed Up/ down Max Attenuation
EUBA 0 - 56.4 dB
EUBA 40 288 / 2048 kbps 56.4 dB
EUBA 90 288 / 2048 kbps 56.4 dB
EUBA 180 430 / 2048 kbps 48.7 dB

The larger ISPs (Spark, Vodafone, CallPlus) are most likely to have greatest BUBA coverage, some ISPs do not have enough customers to justify the provision of separate handover links and backhaul required to service BUBA customers in such areas. Some ISPs also choose to provision specific retail plans e.g. Orcon Genius, Bigpipe over EUBA only.

hio77

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#1368667 18-Aug-2015 15:13

yitz:
The following table shows the maximum attenuation for Enhanced UBA variants, and the respective derived minimum speeds:
Service Variant Minimum Speed Up/ down Max Attenuation
EUBA 0 - 56.4 dB
EUBA 40 288 / 2048 kbps 56.4 dB
EUBA 90 288 / 2048 kbps 56.4 dB
EUBA 180 430 / 2048 kbps 48.7 dB

The larger ISPs (Spark, Vodafone, CallPlus) are most likely to have greatest BUBA coverage, some ISPs do not have enough customers to justify the provision of separate handover links and backhaul required to service BUBA customers in such areas. Some ISPs also choose to provision specific retail plans e.g. Orcon Genius, Bigpipe over EUBA only.

Considering that table, What exactly is the difference between EUBA 40 and 90?

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yitz

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#1368705 18-Aug-2015 15:39

hio77: Considering that table, What exactly is the difference between EUBA 40 and 90?

There is no difference to the physical layer specification, supposedly they are to allow for seamless transition to VoIP, the 40 and 90 describe the traffic rate properties of the real time traffic queue, 40 and 90 being suitable for a single VoIP call while 180 for 2 VoIP lines.