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Frequently Asked Questions

Can both the ADSL and ISDN interfaces be used at the same time ?

www.draytek.com.au -
You cannot use both WAN interfaces to connect to internet (via the same ISP or different ISP's) at the same time, as the router wouldn't know which internet connection you wanted. But you can have the ADSL connected to the Internet and use the ISDN for a dial-in teleworker or a VPN to a branch office. Technically speaking, where the ISDN is being used to route to a specific directly-dialled subnet. If you have a remote office or teleworker which only has ISDN (i.e.

Why can't I get ADSL? I have ISDN, can I get ADSL?

Alpha Telecom FAQ Page
You will be able to get ADSL if the local exchange supports ADSL and you order an analogue telephone service (extra charge) to be used for the ADSL service. This service would be charged a standard telephone line rental. How many IP addresses do I get with my ADSL service? You will receive at least one static IP address with your ADSL order.

Are there any special considerations for ISDN interfaces?

Check Point Technical Support
If you are implementing a default Security Policy (see "Default Security Policy") on a gateway with ISDN interfaces, FireWall-1 will not recognize the ISDN interfaces. The reason is that during the boot process, the ISDN interfaces are loaded just after the default Security Policy. When the real Security Policy is loaded, FireWall-1 "knows" that it has been loaded before, so it does not scan for new interfaces.

What is ISDN and why would I use ISDN instead of ADSL ?

www.draytek.com.au -
Basic ISDN effectively converts your telephone line to digital with two 'channels', each of which can carry a telephone conversation or data at 64Mb/s. When neither phone line is in use, the data channels can be combined to give 128Mb/s, which puts it at the bottom end of "Broadband". The drawback of ISDN is its price - Telstra have considered it a premium business service, and have priced it out of the reach of residential users.

Can I upgrade from ISDN to MangoSurf.net ADSL?

ADSL and SDSL broadband Internet access, hosting and domains...
Yes, however the line has to be re-graded to an analogue line, and BT charge to do this, you are also liable for any terms left on the ISDN contract. Once the line has been regraded, it will be checked for suitability for ADSL. There is a chance the line is not suitable and BT will charge to convert it back to ISDN.

I have ISDN lines, can I have ADSL?

FAQ
ADSL can’t be installed on ISDN lines, so either you need a separate new (analogue) phone line or for the ISDN to be converted back to an analogue service.

Do Eicon support ADSL over ISDN?

FAQ's
Eicon has demonstrated ADSL over ISDN operation using the G.992.2 Annex B standard. Currently shipping products do not support ADSL over ISDN. The reason is that an ADSL connection may share the standard telephone wiring, however, ADSL itself is only connected to the Internet. Since a Diva ADSL modem only accesses the ADSL connection, it too is only connected to the Internet.

How does ADSL compare to ISDN?

RUCC DSL
ADSL offers a cheaper and faster service than ISDN. ISDN works by providing two voice channels or a 128 Kbps data channel while ADSL is predominantly a data pipe providing an asymmetrical bandwidth of up to 6 Mbps downstream and 640 kbps upstream. However, the ADSL network is an overlay network and therefore does not require the expensive and time-consuming switch upgrades that held ISDN back for so long.

What can ADSL be used for?

www.mydataone.net - FAQs (General)
ADSL can be used for various other purposes other than mere Internet access. However, only internet access is available at this point of time. The access speeds available with ADSL make it practical for web sites to carry more multi-media rich information such as embedded video clips, animations and good quality audio significantly enhancing the online experience.

Q05: What are the differences between ADSL & ISDN?

Prolink Support
The two services are NOT the same. ISDN provides two voice channels or a 128 Kbps data channel while ADSL is predominantly a data pipe providing an asymmetrical bandwidth of up to 8 Mbps downstream and 1 Mbps upstream under good conditions. However, an ADSL access network will be an overlay network and therefore will not require the expensive and time-consuming switch upgrades that held ISDN back for so long.

Is this like Cable modems, ISDN, or ADSL?

Wireless Web Access - FAQ
Most of these services are not available in our service areas. Cable Modems, ISDN, and ADSL are all dependent on physical wires, and a middle man (i.e., the phone company). With Wireless Internet Access, you are dealing with no wires and directly with the ISP; there is no middle man. There are also speed factors. Click here to see a chart on speed comparisons.

Q24. How can I know if I need ADSL or ISDN?

top2
Flat rate charging ISDN is essential if your application is video conferencing over switched PSTN numbers. ISDN also provides the ability of having 2 phone lines on the same copper loop, which is not possible with ADSL.

What Other Interfaces Can Be Used Besides Ethernet?

Sustainable Softworks - IPNetRouter | FAQ
Some Macs cannot take additional Ethernet cards. You may be able to use LocalTalk (via MacIP), AirPort, Firewire, TokenRing, or even a Skyline wireless card as a second (or third or fourth), physically separate interface besides or in addition to Ethernet. Any interface that can use IP through Open Transport (using standard APIs) may be able to take advantage of IPNetRouter. In addition, IPNetRouter works with various PPPoE implentations such as the Alcatel USB, Enternet, and MacPoet solutions.

How fast is ADSL compared to normal dial-up, ISDN and DIAS connection ?

NE-II Telecom Circle -- BROADBAND FAQ
If you are using a connection with 1 Mbps down load speed then you are having a speed that is 17.5 times faster that normal dial-up and about 8 times faster than DIAS & ISDN.

Do you support cable modems, ISDN, ADSL and T-1?

betpad.com Home -
Yes. Connection speed is dependent on your access provider, but high-speed internet connections are not required to access the BetPad.com service.
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