We will aim to fix your phone line fault by the end of the next working day.

You can report faults 24/7/365 online or by phone:

ISDN2 & ISDN2e system call - 0800 800 154

or

ISDN30e call - 0800 154 434

But you may not need to contact us at all: our comprehensive set of FAQs and help articles on our website, plus help from other customers on our support forums,  should answer most questions.

Protection against both cable and local exchange failure.

• We provide your ISDN over 2 different routes
  
• Different cables, ducts (where available), and building entry points
  
• Routing from 2 exchanges to your premises 

If your site has been compromised, we’ll divert all your incoming calls to a single pre-arranged number.

ISDN30e channels duplicated at a standby site that we activate when you can’t use your main site.

We connect your site to 2 exchanges with the same number range across both exchanges.  

So if one exchange fails, you’ll still get your incoming calls delivered from the second exchange. 

If you’d like to add direct dial in numbers to your lines you can upgrade from £4.10 per channel per month  (ex VAT)
.

2 options for more rapid fault fixes.

Total care

We will aim to fix any faults within 24 hours of you telling us about the fault (including weekends and public holidays).

Costs  

ISDN2 and ISDN2e System: £4.70 a month extra for each pair of channels (ex VAT)

ISDN30e: £3.00 a month extra (ex VAT)
 for each channel 

Critical care

We will aim to fix any faults within 6 hours of you telling us about the fault (including weekends and public holidays).

Costs 

ISDN2 and ISDN2e System: £6.30 a month extra for each pair of channels (ex VAT)

ISDN30e: £4.30 a month extra for each channel (ex VAT)

Technical details about ISDN2.

• Internet connection speed on each channel is 64kbps, which you can combine for faster transmission
  
• If you connect devices directly to the ISDN circuit, you can have up to 9 additional MSN (Multi-Subscriber Numbering) numbers
  

Technical details about ISDN2e System.

• If you connect devices directly to the ISDN circuit, you can have up to 9  additional MSN (Multi-Subscriber Numbering) numbers
  
• Internet connection speed on each channel is 64kbps, which you can combine for faster transmission
  
• Bond channels together for faster transmission for high-quality video conferencing and transferring large data files
  
• If you use a switch (PBX), you can have an unlimited number of DDI numbers (extra charges apply)
  

Technical details about ISDN30

• Each bearer carries 30 64kbps channels
• Bond channels together for faster transmission for high-quality video conferencing and transferring large data files
• If you use a switch (PBX), you can have an unlimited number of DDI numbers (extra charges apply)
• You can create a Wide Area Network (WAN) by linking 2 or more Local Area Networks (LAN) so you can link multiple sites together
• 2 configurations available: ETSI and DASS