ThisOnly service is only available to Businessbusiness Customerscustomers.

BT does not guarantee that these products will be available to all customers. Customers should check availability of service with their Customer Service Centre before ordering.

Centrex Access Lines

Centrex Access Lines (CALs),are Featurelineavailable Corporatefrom CentrexBT' Lines (FCAL), Digitial Access Lines (DALs) and Featureline Corporate Digital Access Lines are available from BT's System-X local exchanges. Centrex Access Lines and BT' Featureline Corporate Centrex Access Lines are also available from BT's AXE-10 local exchanges, but not Digitial Embark or Digital Featureline Corporate Access Lines. Service is not available from UXD5 local exchanges. Some Customers may require a change of number to enable provision of Embark and Featureline Corporate Access Lines.

Digital Access Lines

Digital Access Lines are available from BT?s System-X local exchanges.

Digital Embark or Digital Featureline Corporate Access Lines are only available from BT?s System-X nearest local exchanges.

A minimum of 8 Digital Access Lines (channels) must be ordered and retained in service at each site requiring Embark Digital Access.

ThisOnly service is only available to Businessbusiness Customerscustomers.

Customers should check availability of service with their Customer Service Centre.

Customers who have Featureline Corporate Access Lines, can not have Embark Centrex Access Lines or Embark Digital Access Lines, as part of their network.

Neither the Embark nor Featureline Corporate Service is available from UXD5 local exchanges (for any line type).

Some Customers may require a change of number to enable provision of Embark and Featureline Corporate Centrex and Digital Access Lines.

NOTES:

Customers who have Featureline Corporate Access Lines, can not have Embark Centrex Access Lines or Embark Digital Access Lines, as part of their network.

Call Pricing Scheme

Embark

Three Embark call pricing schemes are available for selection by the Customer. The pricing- schemeOption selectedA, willB determineand theC, callwhich priceare discountsset applicableout toin allSection chargeable calls made from a Customer's Embark Access Lines. Pricing schemes B and C have an associated rental charge. This charge 21is appliedPart quarterly to a single Customer nominated billing account. No additional site fees are chargeable.2 Subpart 3. The pricing scheme selected will determine the call price discounts applicable to all chargeable calls made from a Customers Embark Access Lines. Pricing schemes B and C have an associated rental charge which is applied quarterly to a single Customer nominated billing account. No additional site fees are chargeable.

Featureline Corporate

Customers taking Featureline Corporate can choose to take the Featureline Corporate Call Package as detailed in Section 21 Part 2 Subpart 3.

NOTES:

Embark and Featureline Corporate Customers may choose to take another BT Call Package (where those products are shown as eligible within that package) - see Section 56 for more information.