Centrex Single Line Packages

These services are subject to a 24 month contract and come with a DECT cordless handset.
All Centrex services come with voicemail to email facility and advanced call features.

Centrex Single Line service can be upgraded to our Centrex Hosted PBX service if your require multiple phone lines or advanced call handling features.

Unlimited UK
Landline Calls
Unlimited UK
Mobile Calls
20hrs International
Band A&B Calls
setup fee monthly cost

Centrex - Anytime UK



Centrex - Anytime International



Any non inclusive calls will be charged at the rates below and are subject to a call setup fee of 8p. Calls starting 084,087,09,118 will incur a 8p per minute access charge as well as the service providers charge.
All call packages have a call limit duration of 1 hour per call after which you would be charged for the time period after the initial hour at 1p per minute for landline calls and 5p per minute for mobile calls.
Setup fee includes handset delivery, activation of service and number porting.

Prices Exclude Vat


You must have an existing high quality internet connection with spare ethernet port on the router in order to use our Centrex Single Line phone service.

Our Centrex Single Line phone service will not operate without power so you must ensure you have an alternative means of making emergency calls.

Why IDNet?


Plug-and-play phones - zero configuration required. Ability to keep your existing number.


Good-value call charges thanks to per-second billing, low international rates and one of the lowest call setup charges around.


Take your phone service anywhere there is an Ethernet socket. Upgrade to a full 'Centrex Hosted Telephony' solution at a later date.


UK-based expert 24/7 support.


The UK’s First B Corp ISP.


MI5-audited network.


Call Features

These features are included in with all our Centrex services, some are enabled on demand.

Caller Display

Caller Display shows you the number of the person calling so you can decide whether to answer the call. To use you will need a compatible handset (nearly all current UK sold phones are compatible).

Call Waiting

With Call Waiting, a gentle beep alerts you that another call is coming in. You then have the option to end your original call and take the new call, swap between both calls, or continue with your current call.

Number Withhold

Enabled on a per call basis via starcode.

Call Forwarding

Call Forwarding enables you to have all calls diverted to another number - anywhere in the UK, most overseas destinations or a mobile phone. You can choose to - divert all calls, divert on no reply, divert when the line is busy or divert when your terminal adaptor/phone is not reachable.
The diverted leg of the call will be charged at your normal call rates and included in any call package that you may have.

Anonymous Call Reject

Anonymous Call Reject blocks any caller that doesn't send their phone number via Caller Display. Can be enabled via email request.

The following features are only available when using a Centrex handset, they are not available when using an ATA.

Call Barring

Incoming Call Barring allows you to bar incoming calls and is managed via the call block option on the handset. Outgoing Call Barring is enabled for premium calls by default on all services, international calls are also blocked on the 'Anytime UK' package by default. Alterations to outbound calling bars are done via an email request.

Call Transfer

Allows you to transfer calls to another number, you will be charged for the diverted leg of the call if the number you divert to is outside your call package.

3-Way Conference Calls

Allows you to talk to 2 other parties, you will be charged for the calls to any additional party if the destination called is outside your call package.

Voicemail Services

Voicemail to email is included with all our Centrex services.

UK Call Prices

Unlimited UK Landline and Mobile calls are included.

International Call Prices

20 hours of calls to Band A & B are included with 'Centrex International'

Band A Landline - 5p Per Minute

Andorra, Argentina, Australia, Austria, Azores, Belgium, Brazil, Brunei Darussalam, Bulgaria, Canada, Canary Islands, Chatham Islands, China, Christmas Islands, Cocos Islands, Colombia, Croatia, Cyprus, Czech Republic, Denmark, Easter Island, Estonia, Finland, France, Germany, Gibraltar, Greece, Guadeloupe, Guam, Hong Kong, Hungary, Iceland, India, Ireland, Israel, Italy, Japan, Latvia, Lithuania, Luxembourg, Madeira, Malaysia, Malta, Martinique, Mexico, Monaco, Netherlands, New Zealand, Norway, Poland, Portugal, Puerto Rico, Romania, Russia, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey, United States, Vatican, Venezuela, Virgin Islands Us

Band B Landline - 10p Per Minute

Alaska, Albania, American Samoa, Armenia, Bahamas, Bahrain, Bangladesh, Bermuda, Burundi, Cambodia, Costa Rica, Dominican Republic, French Guiana, Georgia, Indonesia, Jordan, Kazakhstan, Laos, Macao, Macedonia, Mauritius, Mongolia, Morocco, Northern Mariana Is, Panama, Paraguay, Peru, Swaziland, Trinidad And Tobago, Uruguay, Vietnam, Zambia, Zimbabwe

Band B Mobile - 10p Per Minute

Alaska, Austria, Bahrain, Bangladesh, Belgium, Bermuda, Brunei Darussalam, Cambodia, Canada, China, Christmas Islands, Cocos Islands, Colombia, Cyprus, Czech Republic, France, Germany, Guam, Hong Kong, Hungary, India, Ireland, Israel, Jordan, Korea South, Laos, Macao, Malaysia, Netherlands, Northern Mariana Is, Norway, Paraguay, Poland, Portugal, Puerto Rico, Romania, Singapore, Spain, Sweden, Thailand, United States, Vatican, Vietnam, Virgin Islands Us

Band C Landline - 25p Per Minute

Afghanistan, Algeria, Angola, Anguilla, Antigua And Barbuda, Aruba, Azerbaijan, Bhutan, Bolivia, Bosnia, Botswana, Cameroon, Cayman Islands, Chad, Chile, Cote D'ivoire, Cote Divoire, Dominica, Ecuador, Egypt, Faeroe Islands, Faeroe Islands, Fiji, Ghana, Grenada, Guatemala, Iran, Iraq, Jamaica, Kenya, Kuwait, Kyrgyzstan, Lebanon, Lesotho, Malawi, Mauritania, Moldova, Montenegro, Montserrat, Mozambique, Namibia, Nepal, Netherlands Antilles, Nicaragua, Nigeria, Oman, Pakistan, Philippines, Qatar, Rodriguez Island, Rwanda, Saudi Arabia, Serbia, Seychelles, Sri Lanka, St Kitts And Nevis, St Lucia, St Vincent, Syria, Tajikistan, Turkmenistan, Turks And Caicos Is, Uganda, Ukraine, United Arab Emirates, Uzbekistan, Virgin Islands Uk, Yemen

Band C Mobile - 25p Per Minute

Afghanistan, Angola, Antigua And Barbuda, Armenia, Australia, Azerbaijan, Azores, Bahamas, Bhutan, Bolivia, Bulgaria, Burundi, Canary Islands, Cayman Islands, Costa Rica, Denmark, Dominican Republic, Egypt, Estonia, Faeroe Islands, Fiji, Finland, French Guiana, Georgia, Ghana, Greece, Guadeloupe, Guatemala, Iceland, Indonesia, Iran, Iraq, Italy, Japan, Kazakhstan, Kenya, Kyrgyzstan, Latvia, Lithuania, Luxembourg, Madeira, Malawi, Malta, Mauritius, Mexico, Monaco, Mongolia, Montserrat, Mozambique, Netherlands Antilles, Nigeria, Pakistan, Panama, Peru, Philippines, Rodriguez Island, Rwanda, San Marino, Saudi Arabia, Seychelles, Slovakia, Slovenia, South Africa, Sri Lanka, Sudan, Switzerland, Taiwan, Tajikistan, Trinidad And Tobago, Turkey, Turkmenistan, Uganda, Ukraine, United Arab Emirates, Uzbekistan, Venezuela, Virgin Islands Uk, Yemen, Zambia

Band D Landline - 50p Per Minute

Belarus, Belize, Benin, Burkina Faso, Cape Verde, Central African Rep, Comoros, Congo, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, French Polynesia, Gabon, Guinea, Guinea-bissau, Guyana, Haiti, Honduras, Liberia, Libya, Liechtenstein, Madagascar, Maldives, Mali, Marshall Islands, Mayotte Island, Micronesia, Myanmar, New Caledonia, Niger, Norfolk Island, Palau, Palestine, Reunion, Russia, Samoa West, San Marino, Senegal, Sierra Leone, St Pierre And Miquelon, Sudan, Suriname, Tanzania, Tonga, Tunisia, Tuvalu

Band D Mobile - 50p Per Minute

Albania, Algeria, American Samoa, Andorra, Anguilla, Argentina, Aruba, Barbados, Belarus, Belize, Benin, Bosnia, Botswana, Brazil, Burkina Faso, Cameroon, Cape Verde, Central African Rep, Chad, Chatham Islands, Chile, Congo Dem Rep, Congo, Cote D'ivoire, Croatia, Dominica, Easter Island, Ecuador, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, French Polynesia, Gabon, Gibraltar, Grenada, Guyana, Haiti, Honduras, Jamaica, Kuwait, Lebanon, Lesotho, Liberia, Macedonia, Madagascar, Maldives, Mali, Marshall Islands, Martinique, Mauritania, Mayotte Island, Micronesia, Moldova, Myanmar, Namibia, Nepal, New Caledonia, New Zealand, Nicaragua, Niger, Norfolk Island, Oman, Palau, Palestine, Qatar, Reunion, Samoa West, Senegal, Serbia, St Kitts And Nevis, St Lucia, St Pierre And Miquelon, St Vincent, Suriname, Swaziland, Syria, Tanzania, Tonga, Turks And Caicos Is, Tuvalu, Uruguay, Zimbabwe

Other - Including Satellite Phones

Any destination not listed above will cost in excess of £0.50 Per Minute. Calls to satellite phones vary according to the operator of the service but will be in excess of £2.00 Per Minute, we will pass on our wholesale cost plus your call setup fee. Please contact us for prices of particular locations.

Premium Rate Call Prices (084/087/09/118)

Information Services, Premium Numbers & Directory Enquiries

Access Charge

IDNet will charge 8p per minute on all Centrex services

Service Charge

The service charge - this is the rest of the call charge. The organisation you’re calling decides the service charge, and must communicate it. For example, if the service charge was 20p per minute, the organisation you’re calling might say "Calls cost 20p per minute, plus your phone company’s access charge".

The service charge for calls to 084 numbers is between 0p and 7p per minute.
The service charge for calls to 087 numbers is between 0p and 13p per minute.
The service charge for calls to 09 numbers can range from 1p to £3.60 per minute. You may be charged a one-off call cost ranging from 5p to £6.
The service charge for 118 numbers can vary widely and usually have a setup charge and then a per minute charge. 118 service charges are subject to a cap, which means 118 companies must not charge more than £3.65 per 90 seconds of a call. We strongly recommend using online directory enquiries services which are free.

Total Cost

By adding together the access charge and the service charge, you’ll know exactly what the call will cost you.

Customer Support Lines

Companies that you already have a contractual arrangement with are legally obliged to provide you with a standard rate (01,02,03) or freephone (0800,0808) number to call.


The NHS has banned the use of premium numbers for services and you should be provided with a standard rate (01,02,03) or freephone (0800,0808) number to call. The 111 (non medical emergency) and 119 numbers are free to call.


The 101 police non emergency number is now free to call.

It's all in the details

Rental & Connection
Transfer of phone numbers are done via a number port process which typically takes 10 working days, once number has been ported your existing service should cease. (you are advised to contact your existing supplier to ensure they stop billing you)
The service is provided using the supplied handset. Other 3rd party PSTN & VoIP handsets will not work. We can discuss other handset options with you if a DECT handset is not suitable for your needs.
A good working internet connection is required for this service.
This service will not operate without power and you must ensure you have an alternative means of making emergency calls.
Call diversions will incur per second call charges at your call package rate

Call Packages
You may switch between Centrex packages as required.
Fair usage policy: no bulk calling (telesales), no automated dialers (i.e. anything that automatically makes a phone call or dialup data connection). Inclusive Mobile & International Calls limited to a total of 1200 minutes (20 hours) per month after which normal call charges will apply.
Unlimited UK calls also apply for calls to landlines in the Channel Islands, Isle Of Man and landline calls between Northern Ireland and Republic Of Ireland (calls between UK Mainland and Republic Of Ireland will be charged at the relevant international rate).
Calls over 1 hour will have the duration over 1 hour charged at our standard call rate (1.00p per minute UK landline, 5.00p per minute UK mobile) .
Other Calls
A call setup fee of 8.00p applies to all non inclusive calls (except numbers starting 084,087,09 & 118 where a Special Services Access Charge of 8.00p per minute will apply instead.)
All calls are calculated on a per second basis (except numbers starting 084,087,09 & 118 which will be charged per minute) and rounded up to nearest penny.

Contract & Cancellation
A standard contract term of 24 months applies to Centrex VoIP phone services.
All new orders and changes to existing services must be placed via our website or in writing (e-mail or post)
Cancellations must be placed in writing (e-mail or post) and are subject to a 30 day notice period.