Where there is more than one FN1000 / FN5000 site within the same charge group Local Networking allows calls between such sites in the same charge group on the standard FN5000 access tariff or FN1000 access tariff to be uncharged. Charges for this feature are included in Access charges outlined in this Part.

National Networking Channels (NNCs) are required in order for OnNet calls between sites in different charge groups on the standard FN5000 access or FN1000 access tariffs to be uncharged.

National Networking Channels between two Charge Groups are not available unless each Charge Group has at least one customer FN5000/FN1000 site (excluding Remote Break-In and Remote Break-Out). All FeatureNet Sites in a Charge Group can share standard application NNCs for OnNet calls and Remote Break-out calls.

National Networking between two Charge Groups can be extended to another by ordering National Networking Channels from only one of the first two Charge Groups to the third Charge Group (i.e. it is not necessary to fully interconnect all three Charge Groups). Such extended networking can be used to connect up to four different Charge Groups by serial linking of three sets of National Networking Channels.

For explanation of Charge Group structures, see Section 2, Section Endnote

Overflow calls are calls which become OffNet because insufficient National Networking Channels or FeatureNet 1000 Access Lines have been chosen to carry them OnNet. When a route of National Networking Channels is first set-up, the customer can opt for overflow or no overflow from that route (default is overflow).

N.B. National Networking Channels at the rates below are not available to customers with any FN1000 or FN5000 access lines contracted under 21A or 21B terms. Existing 21A or 21B customers would be required to “Trade-up" to the Prevailing Prices quoted on pages 7- of this Part in order to take advantage of the above National Networking Channel rates.

Remote Break-Out is provided for calls to break-out onto the PSTN in the Charge Group in which break-out is required and to adjacent Charge Groups to the Break-Out Charge Group.

On rental based networks a remote break out call will use existing NNC capacity from originating to destination charge group, and will then be charged as a local Off-Net call. The appropriate Off-Net call discounts will apply as outlined below in Off-Net Call Charges.

* Subsequent additions of National Networking Channels to existing routes will not incur additional Remote Break-out set-up fees. Where Remote Break-Out is required from an NNG to a different NNG in the same Charge Group, no National Network Channels are required.

Not available with Rental Based Charging Options for networking.

On-Net calls made solely within a site are non-chargeable. On-Net calls made between sites (including small sites) are charged as follows:-

N.B The long term discounts outlined on pages 6 - 97 of this Part, apply to the UBC OnNet call charges outlined above including the minimum call charge, but with the exception of the following types of call :

-Remote Break Out calls

-Calls from a Registered Site Access Line

-Calls from a FeatureNet Call-In number

OnNet call long term discounts are applied directly to calls .

With the introduction of the revised OffNet call charge rates for 21C,D & E tariffs detailed below, all Usage Based Charging (UBC) Remote Break Out calls will be charged as standard OffNet calls (Excludes RBO calls from RSA sites). For RBO calls made under 21A & B contract terms see later in this Part

RSA is only available on UBC based networks.

OnNet calls from RSA sites are charged as follows. Long Term discounts do not apply to calls originating from a Registered Site Access site.

FeatureNet Call-in is available on both UBC and Rental Based Networks.

On-net calls from FeatureNet Call-In numbers are charged as follows. Long Term discounts do not apply to calls originating from FeatureNet Call-In numbers.

OffNet calls are those public network calls made from FN5000 lines, FN1000 trunks, Hosted Voice Connect and FeatureNet Call-In numbers. In rental based networks, calls made from FN5000 lines and FN1000 trunks to FeatureNet Call-In numbers are also OffNet calls.

Calls to Number Translation Services (NTS)

Calls are timed to an accuracy of one tenth-of-a-second and are subject to a minimum call charge of 3.5p. For billing purposes the call charge is rounded up to the next half penny.

Calls to local Number Translation Service (NTS) numbers will be charged at the Local Daytime/Evening/Weekend rates shown below. Local NTS numbers are those shown in Section 2 Part 4 of the BT Price List with a Categorisation for customer Options of `3'.

Calls to national NTS numbers will will be charged at the National Daytime/Evening/Weekend rates shown below. National NTS numbers are those shown in Section 2 Part 13 of the BT Price List with a Categorisation for customer Options of `4'.

Calls to Mobiles (from a fixed line)

Calls are timed to an accuracy of one tenth-of-a-second and are subject to a minimum call charge of 3.5p. For billing purposes the call charge is rounded up to the next half penny.

Calls to f rate

Calls are timed to an accuracy of one tenth-of-a-second and are subject to a minimum call charge of 3.5p. For billing purposes the call charge is rounded up to the next half penny.

Calls to WiFi Services (from a fixed line)

Calls are timed to an accuracy of one tenth-of-a-second and are subject to a minimum call charge of 3.5p. For billing purposes the call charge is rounded up to the next half penny.

All other calls not specified will be charged at BT's standard published rates.

Optionally, customers may benefit from enhanced call discounts by selecting a FeatureNet Minutes or Volume contract - See below for details.

This feature is only available on Off-Net Calls from a FN5000 site. The cost is per use. Customers pay a facility fee when they use the service. This charge is raised when the distinctive ringing occurs and the network is ready to set up the Ring Back call.

The feature can only be implemented or removed on a per customer basis, not a per line basis. Removal of the feature is free of charge before 1st January 2000. From 1st January Time Scale rates will apply to remove or add the feature.

There are a number of circumstances where ring back when free cannot be activated, e.g. access lines which are associated with MADN's, hunt groups, UCD groups, ACD groups, attendant consoles etc. Further information is available in the FeatureNet Service Description.

The charge for the activation of RBWF will contribute to Call Commitment and will be included in the Volume Master call volume discount schemes. The charge is not subject to any other call or term discounts.

Customers may choose to benefit from increased OffNet and OnNet call discounts in exchange for electing to commit to specific minimum average call spend levels across their network. A range of FeatureNet Minutes contracts are available providing varying levels of call discount against different levels of call spend commitment. FeatureNet Minutes contracts are applied in the following way:

• - Existing Access Line rentals are unchanged.
• - All access lines on a customers network benefit from the following specified discount levels.
• - All access lines on a customers network are subject to the per line commitment levels specified.
• - Any new lines added to a customers network while the minutes contract option is in force will automatically benfit from the same terms.
• - Minutes Contracts are subject to a 12 month minimum period. After this period customers may choose to revert to standard call commitment levels without reconcilliation charges. Customers who cease all of their FeatureNet service before the minimum period has elapsed will be subject only to normal early termination charges (See Sub part titled pages 6 - 97 of this Part).
• - Existing FeatureNet customers must have a least 6 months to run on their current term contract to be eligible for 'FeatureNet Minutes Contracts' .
• - The Minutes Contract commitment level per line replaces any existing call commitments or call credit pre-payments which may be in force for existing service.

Current minutes contracts available:

• -Minute Master Advantage - Available for all customers irrespective of the number or type of Access Lines currently in service.
• -1000 Minute Master - Available for all customers irrespective of the number or type of Access Lines currently in service.
• -5000 Minute Master - Available for all customers irrespective of the number or type of Access Lines currently in service.

All customers may choose to benefit from Minutes Contracts irrespective of existing contract terms.

There are no Option Fees required for Minute Master Contracts.

With the introduction of the revised OffNet call charge rates for Minute Master Contracts detailed below, all Usage Based Charging (UBC) Remote Break Out calls will be charged as standard OffNet calls (Excludes RBO calls from RSA sites).

Local and National rate OffNet calls, and calls charged at g21 rates, are charged by applying the following pence per minute rates. The rates below apply only to local and national rate calls as defined in Section 2 Part 1.

Calls are timed to an accuracy of one tenth-of-a-second and are then rounded up to the next whole second. The minimum call charge for the calls detailed below is 3.5p. For billing purposes the call charge is rounded up to the next tenth-of-a-penny.

* These Discounted rates are applied instead of the OffNet call discounts described in this Part.

** These discounted rates are applied instead of any Remote Break-Out call discounts (if applicable) described in this Part.

Calls are timed to an accuracy of one tenth-of-a-second and are then rounded up to the next whole second. The minimum call charge for the calls detailed below is 3.5p. For billing purposes the call charge is rounded up to the next tenth-of-a-penny.

Calls to Number Translation Services (NTS)

Calls to local Number Translation Service (NTS) numbers will be charged at the Local Daytime/Evening/Weekend rates shown below. Local NTS numbers are those shown in Section 2 Part 13 of the BT Price List with a Categorisation for customer Options of `3'.

Calls to national NTS numbers will will be charged at the National Daytime/Evening/Weekend rates shown below. National NTS numbers are those shown in Section 2 Part 13 of the BT Price List with a Categorisation for customer Options of `4'.