Touchtone telephones are required for all BT Calling Features with the exception of Calling Line Identity (CLI) services, Call Minder, Ring Back and Call Sign. Touchtone is a trademark of BT in the UK.

BT's Call Barring service will only bar calls made via the BT network and not those made via alternative Service Providers. Reverse charge calls can still be accepted when Call Barring has been activated.

Customer's who subscibe to BT's Call Barring service and who are also BT Communicator * (See Section 3 Part 1 ) customers will additionally be able to use the Internet Call Barring service, which gives the ability to bar certain types of numbers on calls made through their PC.

Customers will require compatible equipment to display the Calling Line Identity (CLI), available from BT and other suppliers of telecommunications equipment.

Caller Display is subject to availability.

See Section 1 Part 31 for details of BT Privacy At Home.

Call Diversion is only available to the following international destinations: Australia (including Christmas & Cocos Islands), Bahamas, Bermuda, Canada, Cyprus, Denmark, Finland, France, Germany, Hong Kong, Ireland, Malaysia, Norway, Poland, Singapore, Spain, Sweden, United States (excluding Hawaii). The diverted part of the call is charged to the renter of the service at standard dialled rates; calling customers pay the call charge only to the number dialled.

When using BT's Call Diversion service, it is not possible to divert calls using Indirect Access codes.

Call Diversion is not available to Premium Rate numbers.

Call Diversion can also be provided as part of BT Business Line Divert.

Provides an announcement giving the time and date of the last call and the ability to return the call by pressing 3.

Where a customer attempts to return the call by pressing 3, an additional charge will be incurred (except for FeatureNet customers and customers with BT Pay & Call) in addition to the normal dialled rates. In these circumstances the additional charge relates to the provision of the return call attempt and applies irrespective of whether the call is answered or not. Please note that Customers registered with BT as disabled are not subject to this charge, (to enquire about this register call 195).

Customers can withhold their number on a per call basis by prefixing that number with 141. The permanent number withhold facility will withhold the number for all calls.

Call Return is available to all single line customers. It is not available on PBX lines. Additionally, this service may not be compatible with certain types of payphone.

If a customer has the facility to dial 1571 (Call Minder, BT Answer customers) on their line and retrieve messages, they will be able to dial 1571 followed by 0 to return a message.

Where a customer attempts to return the call by pressing 0, an additional charge will be incurred (except for FeatureNet customers and customers with BT Pay & Call) in addition to the normal dialled rates. In these circumstances the additional charge relates to the provision of the return call attempt and applies irrespective of whether the call is answered or not. Please note that Customers registered with BT as disabled are not subject to this charge. (to enquire about this register call 195).

Customers can withhold their numbers on a per call basis by prefixing that number with 141. The permanent number withhold facility will withhold the numbers for all calls.

Call Return is available to all single line customers. It is not available on PBX lines. Additionally, this service may not be compatible with certain types of payphone.

Customers can replace details of their last Call Return 1471 data by using 1471 Erasure. The access code is 1475.

If a customer has the facility to dial 1471 on their line and hear details of their last caller, they will be able to dial 1475 and replace the last caller's details with a message advising `number withheld'. Excludes FeatureNet.

If customers have had their number permanently withheld and they wish to replace the last caller's details as above, they will have to release their number by dialling 1470 then dialling 1475.

The service will not work if the customer's number is not released.

1471 Extra provides an announcement giving the time and date of up to the last five calls and the ability to return the call by pressing 3. Where 3 is pressed the subsequent call is charged at normal dialled call rates.

The permanent number withhold facility will withhold the number for all calls.

A Touchtone phone is required for 1471 Extra.

This service may not be compatible with certain types of payphone.

Call Sign is offered subject to the availability of Call Sign numbers. Where a renumber is required to provide the service, this will be offered free of charge. Call Sign is compatible with all BT corded and most BT cordless phones, but may not be compatible with some other equipment. Call Sign is not available on BT Home or Business Highway.

For technical reasons, at times of call price changes, the service may relate to the old rates for a short period following introduction of the new charges.

Charge Advice will over-estimate the cost of local, national and international calls and calls to mobile phones by up to 4.20 (exc. VAT), and should only be used for these calls. The costs quoted for other types of calls, such as to international mobile telephones, will be significantly different. For details of the international mobile numbers affected refer to relevant Section.

The estimate does not include VAT or any discounts applicable and rounds up to the nearest penny.

The charge is raised when the distinctive ringing occurs and the network is ready to set up the Ring Back call.

Each participant pays at normal dialled rates for the part of the call that they dialled.

This product is no longer available for new supply. Comprises Call Diversion, Call Waiting, Three Way Calling, Code Calling (7 code store) and Call Barring.

This product is no longer available for new supply. Includes Call Diversion, Call Waiting, Three Way Calling and Code Calling (7 code store).

Please contact BT Customer Services for details.

Internet Call Waiting is provided as a feature of BT Communicator * (See Section 3 Part 1 ) . Internet Call Waiting is not compatible with the Call Waiting service. Customers may choose Internet Call Waiting or Call Waiting but cannot have both at the same time. Charges for Internet Call Waiting are as Call Waiting in Calling Features.

* BT Communicator will be withdrawn wef 31st December 2006