Provides up to thirty channels (per system) enabling the transmission of voice, video and data. Use ISDN30 where there are more than 8 channels required.

Other benefits of ISDN30 include:

  • High quality voice calls with other ISDN users
  • Link multiple sites in a WAN
  • Bond channels to increase bandwidth
  • Supports direct dial in (DDI)

ISDN30 Channel Monthly Rental Charges

Monthly Rental per channel £20.50 £14.15

ISDN30 Connection Charges

Line Plant RequiredGlobal
Connection charge per channel for the first 8 channels £243.75 £243.75
Connection charge per subsequent channel £21.82 £21.82
Line Plant in PlaceGlobal
Connection charge per channel for the first 8 channels £157.50 £157.50
Connection charge per subsequent channel £10.91 £10.91

Charges and rental applicable per channel and are exclusive of VAT. Minimum requirement is 8 channels.

Service Care Levels

ISDN30 tariffs come with Service Care Level 2. The benefits of Service Care Level 2 are:

  • Faults cleared by 1700hrs on the next working day
  • Operates between 0800hrs and 1800hrs Monday to Saturday, including IOM Public Holidays
  • Chargeable out of hours engineering attendance available on request

ISDN30 can be upgraded to Service Care Level 1.

For more information about the different service care levels and costs please visit the Service Care section of our website.

Call Charges

Calls from ISDN lines to any destination are charged as per the rate for the tariff the ISDN line is subscribed to.

DDI Charges

DDI is available to order in blocks of 10 numbers, each block known as a number range.

ISDN30 DDI ChargesConnection ChargeMonthly Rental
Site Configuration (5 blocks or less) £200.00 nil
Site Configuration (6 blocks or more) £400.00 nil
Per DDI per number (min 10) provided in blocks of 10 nil 33p

The charges above apply in addition to the connection and rental for ISDN30 channels

Facility Charges

The following additional services are available on ISDN30 services. With the exception of Bypass Number, all of the additional facilities listed are charged per telephone number group.

ISDN30 ETSTI Facility ChargesConnection ChargeMonthly Rental
Calling Line Identity Presentation £10.00 £1.13
Bypass Number nil £1.13

All prices exclude VAT

Additional Information

  1. Additional charges may apply if extensive new construction is required.
  2. With the exception of bypass number, all of the additional facilities listed are charged per directory telephone number group or for each continuous DDI number range.
  3. Where permanent OCB or ICB is requested at the same time as a new ISDN30 line provision, these charges do not apply.

ISDN30 corresponds to CCITT Primary Rate Access

Paper Bill

An additional charge of £1.25 (ex VAT) per month is applicable for new / renewing customers on these tariff plans who choose to receive a paper bill.


For further help and information about Manx Telecom's ISDN services, please contact our business sales team by email or by calling 624624.

Please call me back...

Invalid Input

Invalid Input

Please ensure you have entered a valid telephone number using only numbers, spaces and the following additional special characters #()-+.

Invalid Input

Invalid Input

Unfortunately the anti spam check was not completed successfully. If you are in fact human please have another go.