TC Systems, Inc. South Carolina - AT&T Clec Online

6/23/04
Attachment 3
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transiting a single BellSouth access tandem destined to third party tandems such as
an Independent Company tandem or other CLEC tandem. Other trunk groups for
operator services, directory assistance, emergency services and intercept may be
established if requested by TC SYTEMS. The LERG should be referenced for
current routing and tandem serving arrangements. Two-Way Trunk Interconnection
is illustrated in Exhibit E.
3.21 Supergroup Interconnection
3.21.1 In the Supergroup Interconnection arrangement, the Parties Reciprocal
Compensation and TC SYTEMS’s Transit Traffic is exchanged on a single twoway
trunk group between TC SYTEMS and BellSouth. TC SYTEMS and
BellSouth must agree to the Two-way Trunking Rules in order to establish this
architecture. This group carries intratandem Transit Traffic between TC SYTEMS
and Independent Companies, Interexchange Carriers, other CLECs and other
network providers with which TC SYTEMS desires interconnection and has the
proper contractual arrangements. This group also carries TC SYTEMS originated
intertandem traffic transiting a single BellSouth access tandem destined to third
party tandems such as an Independent Company tandem or other CLEC tandem.
Other trunk groups for operator services, directory assistance, emergency services
and intercept may be established if requested. The LERG should be referenced for
current routing and tandem serving arrangements. Supergroup Interconnection is
illustrated in Exhibit F.
3.22 BellSouth End Office Interconnection
3.22.1 A&T may establish interconnection at BellSouth end offices for the delivery of TC
SYTEMS originated Reciprocal Compensation Traffic destined for BellSouth endusers
served by that end-office.
3.22.2 When end office trunking is ordered by BellSouth to deliver BellSouth originated
traffic to TC SYTEMS, BellSouth will provide overflow routing through BellSouth
tandems consistent with how BellSouth overflows it’s traffic. The overflow will be
based on the homing arrangements TC SYTEMS displays in the LERG. Likewise,
if TC SYTEMS interconnects to a BellSouth end office for delivery of TC
SYTEMS originated traffic, TC SYTEMS will overflow the traffic through the
BellSouth tandems based on the BellSouth homing arrangements shown in the
LERG.
3.22.3 The Parties shall utilize direct end office-to-end office trunk groups under the
following conditions:
3.22.3.1 Tandem Exhaust - If a tandem through which the Parties are interconnected is
unable to, or is forecasted to be unable to support additional traffic loads for any
period of time, the Parties will mutually agree on an end office trunking plan that
will alleviate the tandem capacity shortage and ensure completion of traffic between
TC SYTEMS and BellSouth’s subscribers.
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