Customer Billing Education Package Application of the Channel Termination USOC

Interconnection Services Issue 1, Date 9/ Channel Termination Explanation The Channel Termination rate element is associated with the Local Channel or local loop, which goes from a customer premise to a BellSouth Central office. Tariff resources: FCC #1, Section (A), page 7-4: Local Channel definition FCC #1, Section (A), page 7-49: 1 st paragraph, last sentence High Capacity channels are provided between customer-designated premise or between a customer-designated premise and a Telephone Company Hub.

Interconnection Services Issue 1, Date 9/ Special Access DS1 Riding a LightGate® Service DS3, diagram CKL-3 CKL-1 CKLT-2 CFA 8003 T3Z 8 CARYNCCE CARYNCXXXXX USOC – 1PQE1 DS1 Local Channel (loop), no CFA associated with this end. USOC - TMECS 1PQE1- Feature activation, central office channel interface, per DS1, associated with activation on a LightGate 1, 2, 3, or 4 System TMECS- Channel terminations per point of termination, MBPS *** Explanation of a Chan Term charge riding a channelized (muxed) DS3. The Chan Term charge applies to the Special Access DS1 circuit.

Interconnection Services Issue 1, Date 9/ N13 xxxx xxx *CSR* *LIVE* CLS 26.HCGS.xxxxxx..SB XXX 1 ---S&F SVCDTE:QTY :CODE : DESCRIPTION AMOUNT :ACTDTE CLS 26.HCGS.xxxxxx..SB/NC HCD-/CKR xxxxxxxxxxxx/PIU 100/TAX B,C XDH1X /SED CKL N ACADEMY ST, CARY, NC/LSO /NCI 04QB /POI CARYNCCEWA4/CFA 8003 T3Z 8 CARYNCCE CARYNCxxxxx/ACTL 10/TAR 070, HTN /SED CKLT 2-CARYNCCE/TAR 070, PQE1 /RLFS Y/MSAI RDN/SED /SPP TPP1/TA 96, /RD INTER NC - EC 5193 { 1 X 6.00 } CKL WESTON PKWY, CARY, NC/LSO /NCI 04DU9.1KN.--/SN END USER NAME/LOC FLR 1;DES FL1 TEL/TAR 070, TMECS /RZN 3/RLFS Y/MSAI RDN SED /RMK TERM IN EXISTING RJ48C JACK INTER NC - EC 5193 { 1 X } L5XX /RZN 3/RLFS Y/MSAI RDN, RDN /SED INTER NC - EC 5193 { ( X 3) } S25EX /SED /EXR INTERSTATE SUBTOTAL INTRASTATE SUBTOTAL 0.00 LOCAL SUBTOTAL 0.00 CIRCUIT SUBTOTAL Special Access DS1 Riding a LightGate® Service DS3, CSR

Interconnection Services Issue 1, Date 9/ Special Access Point to Point DS1 Riding a LightGate Service DS3, With 2 1PQE1s diagram *** Point to Point DS1, and both ends of the circuit rides channelized (muxed) DS3s. The 1PQE1 (COCI) charge applies twice, on both ends of the circuit, and will bill on the Special Access DS1 circuit. CKL-3 CKL-1 CKLT-2 CFA 813 T3Z 3 NSVLTNMT NSVLTNxxxxx USOC – 1PQE1 CFA 801 T3Z 27 NSVLTNMT NSVLTNxxxxx USOC – 1PQE1 1PQE1- Feature activation, central office channel interface, per DS1, associated with activation on a LightGate 1, 2, 3, or 4 System; also referred to as a COCI

Interconnection Services Issue 1, Date 9/ Special Access DS1 Riding a LightGate Service DS3, CSR (Example of 2 DS1 COCIs ) 615 N19 xxxx xxx *CSR* *LIVE* CLS T4.HCGS.xxxxxx..SC XXX 1 B04 UP NHVL ---S&F SVCDTE:QTY :CODE : DESCRIPTION AMOUNT :ACTDTE CLS T4.HCGS.xxxxxx..SC/NC HCE-/CKR xxxxxxx/PIU 100/TAX B,C,D,E,H,J,K HFQC6 /SED CKL HERRON DR, NASHVILLE, TN/LSO /NCI 04DS6.44/CFA 813 T3Z 3 NSVLTNMT NSVLTNxxxxx/ZNEA/HBAN 615 N19-xxxx/ACTL 10/TAR 091, HTN /SED CKLT 2-NSVLTNMT/TAR 091, PQE1 /RLFS Y/MSAI NDT/SED /SPP TPP1/TA 96, /RD INTER TN - EC 5185 { 1 X 6.00 } CKLT 3-NSVLTNMT/TAR 091, PQE1 /RLFS Y/MSAI NDT/SED /SPP TPP1/TA 96, /RD INTER TN - EC 5185 { 1 X 6.00 } CKL 4-49 MUSIC SQUARE W, NASHVILLE, TN /LSO /SN PIEDMONT NATURAL GAS/NCI 04DU9.1SN/CFA 801 T3Z 27 NSVLTNMT NSVLTNxxxxx/HBAN 615 N19- xxxx/TAR 091, CCOEF /SED S25EX /SED /EXR INTERSTATE SUBTOTAL INTRASTATE SUBTOTAL 0.00 LOCAL SUBTOTAL 0.00 CIRCUIT SUBTOTAL 12.00

Interconnection Services Issue 1, Date 9/ Special Access DS1 Riding a SMARTRing® Service, diagram *** Explanation of a Chan Term charge riding a channelized (muxed) DS3. The Chan Term charge applies to the Special Access DS1 circuit. SHNCA- SMARTRing Service (a.k.a. BellSouth SPA Dedicated Ring), Central Office Channel Interface, per DS1 on 28 DS1 Channel System, DS3 TMECS- Channel terminations per point of termination, MBPS CKL-3 CKL-1 SR Cust Node CKLT-2 SR CO Node CFA 4003 T3Z 17 ATLNGAXXXXX DLTHGAHSK11 USOC – SHNCA DS1 Local Channel (loop), no CFA associated with this end. USOC - TMECS

Interconnection Services Issue 1, Date 9/ N01 xxxx xxx *CSR* *LIVE* CLS 38.HCGS.xxxxxx..SB XXX 1 ---S&F SVCDTE:QTY :CODE : DESCRIPTION AMOUNT :ACTDTE CLS 38.HCGS.xxxxxx..SB/NC HCE-/CKR ATLN US/SNID NGxxxG/SSP/PIU 100/TAX B,C XDH1X /SED CKL 1-2 CONCOURSE PKWY NE, ATL, GA/LSO /ZNEA/NCI 04DS6.44/CFA 4003 T3Z 17 ATLNGADZAMD DLTHGAHSK11/ACTL 2/TAR 000, HTN /SED CKLT 2-DLTHGAHS/TAR 019, SHNCA /RLFS Y/MSAI ATL/SED /SPP TPP1/TA 72, /RD INTER GA - EC 5192 { 1 X 7.00 } CKL MC*GINNIS FERRY RD, SUWANEE, GA/LSO /NCI 04DU9.1SN/SN GE HITACHI HVB INC/TAR 000, TMECS /RZN 3/RLFS Y/MSAI ATL /SED INTER GA - EC 5192 { 1 X } L5XX /RZN 3/SED CCOEF /SED RJ48C /SED S25EX /SED /EXR INTERSTATE SUBTOTAL INTRASTATE SUBTOTAL 0.00 LOCAL SUBTOTAL 0.00 CIRCUIT SUBTOTAL Special Access DS1 Riding a SMARTRing® Service, CSR