ISDN
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How do I report a fault on my ISDN line?
Before you contact us, please follow the steps below to identify and possibly resolve your problem. Check the local service status - A temporary exchange problem may be affecting your service......
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What is ISDN30/30e and how does it work?
What is ISDN30/30e? Is ISDN30/30e available in my area? What lines does ISDN30/30e use? What devices can I use with ISDN30/30e? How many telephone numbers can I have with ISDN30/30e? What......
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Features & benefits of ISDN2e explained
What BT Call Features are available with ISDN2e? Can I keep my outgoing number private? I used to have Caller ID. Is this service available on ISDN2e? How can I divert an individual DDI number on my.....
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Connection charges
Our policy When you apply for service, depending on whether there has been service at the premises previously, you will be charged connection charges for making the line active. The charge covers......
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Call forwarding using ISDN2e
What options do I have for forwarding calls made to my number? What is the difference between Customer Controlled Call Forwarding (CCCF) and Admin Controlled Call Forwarding (ACCF)? Can I have Remote....
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What do I get with ISDN30 (DASS)?
What is DASS? What does ISDN30 (DASS) terminate on? Is my ISDN30 (DASS) service Balanced or Unbalanced? My switch engineer has asked me to find out. How many DDI ranges and numbers can I have on an......
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What is the difference between point-to-point and point-to-multi-point?
The two possible configurations for ISDN lines are shown below. These affect the way ISDN messages are addressed when the network communicates with your equipment. Point-to-multi-point (also known as....
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ISDN30e User Guide
For further information on ISDN30e, please view the following: ISDN30e User Guide (PDF format) Please note: To open and read the above file you will need to have Adobe Reader installed on your PC. If....
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Direct Dial In (DDI) with ISDN30/30e
What are DDIs? I want to present a DDI number on my outgoing CLI. How do I do this? Where can I purchase additional DDIs? I just had a new ISDN30/30e line installed and my PBX maintainer needs only 4....
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Getting started with ISDN2e
Can I use ISDN2e straight away? How many calls can I make at once? Can I receive incoming faxes? Is the service suitable for voice, as well as for data and e-mail? Can the service be configured in......