BT ISDN Technické informace stáhnout pdf (Strana 21)

ISDN 2e

Troubleshooting tips

Q. I don’t think anything is wrong. I just want more

information.

A. Call the ISDN Helpdesk on Freefone 0800 18 15 14.

Q. The green SERVICE LED has gone out.

A. There may be a fault on the line or exchange. Call BT

Fault Reporting on Freefone 0800 800 154.

Q. I’m having trouble getting ISDN 2e to do what

I want.

A. Check that the green SERVICE LED is lit. If it is,

check that your hardware (phone, fax, phone system

or router) is compatible with ISDN 2e and is properly

configured. This may involve contacting your hardware

supplier. Remember that you can only make two

simultaneous calls. So, if others are using the service,

you won’t be able to. If you still have a problem, phone

the ISDN Helpdesk on Freefone 0800 18 15 14.

Q. My computer doesn’t seem to be working with

ISDN 2e.

A. Check that the green SERVICE LED is on. Ensure

that your computer is correctly fitted with an ISDN

PC Card or a Terminal Adapter. If you’re using

extension wiring, plug your digital device directly into

either of the sockets on the ISDN 2e box. If it works,

you may have a problem with your extension wiring

and will need to check the S-Bus configuration

switches on your ISDN 2e box and/or refer to your kit

supplier. If you can’t get on the Internet or access a

remote computer, check the paragraph below.

Q. Can I use ISDN 2e to connect to a customer or

supplier who only has an analogue modem?

A. It depends on the ISDN interface you have in your

computer. Some modern ISDN Cards can emulate an

analogue modem, which effectively limits its speed to

that of the modem being dialled. If your equipment

supports this feature, you should have no difficulty in

connecting to someone with an analogue modem.

Q. Can I use a modem with the digital lines?

A. You cannot plug a modem directly into the ISDN 2e

box, however you can plug a modem into an analogue

port on a Terminal Adapter – you will then be able to

send data this way but will not see any of the speed

enhancement benefits of ISDN.

Q. What happens to the digital connection if I am

using both channels and someone picks up the

phone?

A. Unlike analogue connections, the digital connection

will not be disrupted, but the person picking up the

phone will not hear a dial tone and will not be able to

dial out.

Q. Do call charges differ from normal analogue

lines?

A. Voice call charges are exactly the same as before.

Data calls in the UK are also the same, but

international 64k data calls are charged at different

rates.

Q. What do I do if ISDN 2e isn’t working?

A. Follow the Troubleshooting tips.

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