Isdn To Adsl

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Jono12345

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can anyone tell me why a techie needs to come to the house for an ISDN to ADSL conversion. Surely I just unplug all the ISDN equipment and plug the filter and router in? They say self install doesnt apply:mad:
 
Jono12345 said:
can anyone tell me why a techie needs to come to the house for an ISDN to ADSL conversion. Surely I just unplug all the ISDN equipment and plug the filter and router in? They say self install doesnt apply:mad:
Click to expand...

Line voltages differ, and the same applies to the equipment on both sides of the line.
 
Jono12345 said:
can anyone tell me why a techie needs to come to the house for an ISDN to ADSL conversion. Surely I just unplug all the ISDN equipment and plug the filter and router in? They say self install doesnt apply:mad:
Click to expand...

He is under orders from telkom to come and screw it up for you for five months until they can finally send someone who knows what they are doing.

At least, that's what they did in my case. The guy came and disconnected all my ISDN... and then left. Was five months before the ADSL was finally working.

Good Luck!!! ;)
 
A possible solution would be to apply for a 2nd line together with closer package.

AFAIK this includes free line installation. Once you have this line apply for adsl self install and cancel your ISDN line and if required the closer activation. The negative is that your phone number would change.

By doing this you never be without a working line and should incur no costs other than the monthly rentals.
 
For me, it took 1 week and 3 days for them to come over - convert the ISDN line to Analog and be ADSL ready.
 
If I could find one, I would't have needed to convert the line to analog.

Get a ADSL Modem/Router that can work on the ISDN line.

I see there is a model of my Billion 5201S that supports it, but no one is selling them.
 
Migs said:
If I could find one, I would't have needed to convert the line to analog.

Get a ADSL Modem/Router that can work on the ISDN line.

I see there is a model of my Billion 5201S that supports it, but no one is selling them.
Click to expand...

Telkom needs to provide the right equipment on the exchange side as well for adsl over isdn to work. They are not prepared to do this so even if your modem supported Annex B adsl it would not work.
 
ISDN have two devices on the line one at the exchange & the other at your premises. ISDN is digital. ADSL is a diff. device. They first have to change your line back to a normal analogue line & then you can connect your ADSL Modem/Router to this line. The exchange that you are connected to must also support ADSL.

ADSL over ISDN not supported in South Africa yet. They have done some test.

:cool:
 
well, that I knew already Csnoopy. Just saying it is possible for it to be done. Just not in South Africa I see. As mikef has already mentioned. Pity.
 
Nameite said:
ADSL is also digital...its called asymmetrical digital subscriber's line

Its coz its digital so it conflicks, unlike normal dial up and adsl used simultaneously.
Click to expand...

Corrrrrect.:)

ADSL - Asymmetrical Digital Subscriber Line
Asymmetrical Digital Subscriber Line (ADSL) is a method to use the existing analog local loop lines for digital data transfer to and from the home. It is asymmetrical in that the upstream transfer rate is slower than the downstream data rate. This means that the data transfer from the premise (home) to the CO is a different rate than the data transfer from the CO to the home.
The data transfer is rate adaptive. This means that depending on the condition of the local loop lines, ADSL will automatically compensate and find the fastest transfer rate possible. The range for upstream data transfer is 64 kbps to 768 kbps. The range for downstream data transfers is 1.5 Mbps to 8 Mbps. The reasoning for the asymmetrical transfer rate is that most users will be surfing the Internet, upstream requests tend to be small webpage addresses. The downstream data consists of downloads of large graphic intensive webpages. Small upstream requests, larger downstream response.

The data transfer rate depends on the distance from the central office, the quality of the line and the wire gauge. If the distance from the central office is 15,000 to 18,000 ft, then the maximum transfer rate is 1.5 Mbps. If the distance is 9,000 ft or less, the maximum transfer rate is 8 Mbps.

Can read from here http://www.techbooksforfree.com/intro_to_data_com/page211.html


:cool:
 
Garyvdh said:
He is under orders from telkom to come and screw it up for you for five months until they can finally send someone who knows what they are doing.

At least, that's what they did in my case. The guy came and disconnected all my ISDN... and then left. Was five months before the ADSL was finally working.

Good Luck!!! ;)
Click to expand...

same here, only it took 2 months :mad:
 
Cancelled my ISDN on 31 Aug. Telkom provided an order number for conversion to analogue on 4th Sep. Work is planned to be done on 10th Sep. Once the work is done and order is cleared, I will order a 4Mb ADSL line. Crossing my fingers that all goes well.
Will keep you posted on total turn-aorund time.
 
off track

Guys I think we going a little off track, just wanted to know why I techie needs to come to the house when I am converting from ISDN to ADSL not trying to run ADSL over ISDN or anything, just a clean conversion. They say they need to come to the house because they need to check if the line syncs but how come they dont do that if you have a normal analog line to adsl conversion?
 
Jono12345 said:
Guys I think we going a little off track, just wanted to know why I techie needs to come to the house when I am converting from ISDN to ADSL not trying to run ADSL over ISDN or anything, just a clean conversion. They say they need to come to the house because they need to check if the line syncs but how come they dont do that if you have a normal analog line to adsl conversion?
Click to expand...

hehe... the funny thing is... don't be surprised if telkom also gets confused about what you want to do... the moment there is ISDN AND ADSL mentioned, they get totally confuzzled!!! :D

Every single time I called them over the 5 month period at the beginning of 2005, they kept telling me, no you can't run ISDN over ADSL. :mad: And I kept saying "I don't f#cking want to run ISDN over ADSL, I want the f#cking technician to come here and uninstall the f#cking ISDN and put f#cking ADSL in it's f#cking place!!!"

nevertheless, the fact that you cannot run ISDN over ADSL did not prevent them from charging me for both ISDN AND ADSL for another three months after the installation! :sick:
 
Jono12345 said:
Guys I think we going a little off track, just wanted to know why I techie needs to come to the house when I am converting from ISDN to ADSL not trying to run ADSL over ISDN or anything, just a clean conversion. They say they need to come to the house because they need to check if the line syncs but how come they dont do that if you have a normal analog line to adsl conversion?
Click to expand...

They need to remove the ISDN hardware which belongs to them & re-fit the standard Telephone connector. I dont think that you pay for this if your upgrading to ADSL.

With ADSL self install they need not to do anything at your side. All you have to do is install the modem & operate.


:cool:
 
Csnoopy said:
They need to remove the ISDN hardware which belongs to them & re-fit the standard Telephone connector. I dont think that you pay for this if your upgrading to ADSL.
Click to expand...

Nuh ah, they charge you R490 for the conversion from ISDN (they take their hardware and modify phone plug, but the techie gives you the RJ-45 Cat5 cable and Surge Protector Plug if you want) to ADSL.

The cost to *just* do a conversion from ISDN to Analog, not even the Telkom Supervisor of that Department knew - never mind the person who was taking my call. They gave me a ballpark figure of R300. So better just go for the whole 9 Kilometers and do it all in one shot: ISDN to Analoge - then Plug in the ADSL.

Here's where the **** hits the fan. If you phone Telkom or go to a Telkom store and mention ISDN to ADSL, they immediately told me I did not qualify for the freebies involved (Free Modem - Self-Install - etc). After the installation is complete, the Techie actually asked me if I had a ADSL Modem/Router and if I wanted one. Too bad I bought one already, else I would have gotten the freebie anyway.
 
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