DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Title Page

NONREGULATED SERVICES FOR LOCAL EXCHANGE AND INTRASTATE LONG DISTANCE SERVICE

DELTACOM, INC.

RULES, REQUIREMENTS AND SCHEDULE OF INTRASTATE CHARGES

APPLYING TO NONREGULATED LOCAL EXCHANGE AND LONG DISTANCE SERVICE

WITHIN THE STATE OF ALABAMA

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 1

NONREGULATED SERVICES

TABLE OF CONTENTS

TITLE PAGE

TABLE OF CONTENTS 1

APPLICATION OF TARIFF 7

SECTION 1 – DEFINITION OF TERMS 8

SECTION 2 – GENERAL REGULATIONS 21

Section 2.1 – Undertaking of the Company. 21

Section 2.2 – Use of Service 22

Section 2.3 – Unauthorized Use 23

Section 2.4 – Facilities Used in Provision of Service 24

Section 2.5 – Limitations 26

Section 2.6 – Indemnification 31

Section 2.7 – Notification of Service Affecting Activities 32

Section 2.8 – Non-Routine Installation 33

Section 2.9 – Special Construction 33

Section 2.10 – Terms and Conditions 34

Section 2.11 – Obligations of the Customer 36

Section 2.12 – Interconnection of Facilities 41

Section 2.13 – Inspections 41

Section 2.14 – Validation of Credit 42

Section 2.15 – Payment Arrangements 43

Section 2.16 – Customer Deposits and Advance Payments 48

Section 2.17 – Service Changes 50

Section 2.18 – Agreement for Service 51

Section 2.19 – Annual Usage Commitment Level for Long Distance Service 51

Section 2.20 – Discontinuance of Service by Company 52

Section 2.21 – Interruption of Service 56

Section 2.22 – Cancellation of Service 61

Section 2.23 – Notices and Communications 66

Section 2.24 – Specific Regulations for Toll Free Services 68

Section 2.25 – Transfers and Assignments 72

Section 2.26 – Force Majeure 72

Section 2.27 – Disconnection of Existing Service(s) and Vendor Change(s) 72

Section 2.28 – Modification 73

Section 2.29 – Taxes 73

Section 2.30 – Other Charges 73

Section 2.31 – Designation of Customer Contact 73

Section 2.32 – Individual Case Basis (ICB) Arrangements 73

Original Page 2

NONREGULATED SERVICES

TABLE OF CONTENTS (Continued)

SECTION 3 – LOCAL SERVICE 74

Section 3.1 – Service Elements. 74

Section 3.2 – Presubscription 75

Section 3.3 – DeltaCom MegaHub 75

Section 3.4 – DeltaCom Frame Relay Service. 76

Section 3.5 – T-Remote 78

Section 3.6 – IVP. 80

Section 3.7 – DVP 84

Section 3.8 – Simplici-T Plus Service 88

Section 3.9 – Simplici-T 3.0 Service 93

Section 3.10 – SimpliVoice 99

Section 3.11 – Simpli Analog. 103

Section 3.12 – Simpli-Business PRI 104

Section 3.13 – Simpli-Business T 2.0 107

Section 3.14 – RESERVED FOR FUTURE USE. 111

Section 3.15 – RESERVED FOR FUTURE USE 112

SECTION 4 – LOCAL SERVICE – CENTURYTEL TERRITORY 113

Section 4.1 – Local Calling Areas. 113

Section 4.2 – Extended Local Calling Areas 113

Section 4.3 – DUNE Service 113

Section 4.4 – Telecommunications Relay Service 114

Section 4.5 – Extension Service 114

Section 4.6 – Optional Features. 114

Section 4.7 – Service Order Charges 117

Section 4.8 – PIC Change Charge 117

Section 4.9 – Line Restoral Charge 117

Section 4.10 – Extended Wiring 117

Section 4.11 – Service Calls. 117

Section 4.12 – Directory Listings 117

Section 4.13 – T-PAC Service 117

Section 4.14 – T-Remote 119

Section 4.15 – Simplici-T Plus Service 120

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 3

NONREGULATED SERVICES

TABLE OF CONTENTS (Continued)

SECTION 5 – LONG DISTANCE SERVICE 122

Section 5.1 – General. 122

Section 5.2 – Timing of Calls 122

Section 5.3 – Calculation of Distance 123

Section 5.4 – Delta Private Line Service 124

Section 5.5 – Inbound 800 Service Features 126

Section 5.6 – Enhanced Toll Free Services 127

Section 5.7 – Frame Relay 133

Section 5.8 – Frame Relay with NNI Interface 134

Section 5.9 – ISDN 135

Section 5.10 – DeltaCom HorizonLD Switched Option 1 136

Section 5.11 – DeltaCom HorizonLD Switched Option 2 137

Section 5.12 – DeltaCom HorizonLD Dedicated Option 3 138

Section 5.13 – DeltaCom HorizonLD Dedicated Option 4 139

Section 5.14 – DeltaCom HorizonLD Dedicated Option 5 140

Section 5.15 – T LD Plan 141

Section 5.16 – EZ LD Long Distance 142

Section 5.17 – SimpliVoice Unlimited Long Distance 147

Section 5.18 – SimpliVoice LD 149

Section 5.19 – T_5000 LD Plan 151

Section 5.20 – LD Rewards 153

Section 5.21 – RESERVED FOR FUTURE USE 157

Section 5.22 – RESERVED FOR FUTURE USE 158

Section 5.23 – RESERVED FOR FUTURE USE 159

SECTION 6 – MISCELLANEOUS SERVICES 160

Section 6.1 – Custom Billing. 160

Section 6.2 – Traffic Study Service. 160

Section 6.3 – DeltaCom’s N11 Dialing Service. 161

Section 6.4 – Extension Service. 162

Section 6.5 – T1 Overflow. 163

Section 6.6 – Customized Code Restrictions. 163

Section 6.7 – Optional CLASS Features for Bundled Services. 166

SECTION 7 – OPERATOR SERVICES 169

Section 7.1 – Operator Services . 169

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 4

NONREGULATED SERVICES

TABLE OF CONTENTS (Continued)

SECTION 8 – DIRECTORY ASSISTANCE AND LISTING SERVICES 175

Section 8.1 – Directory Assistance Services. 175

Section 8.2 – Directory Listings. 177

SECTION 9 – SERVICE ORDER AND OTHER CHARGES 180

Section 9.1 – Service Order and Change Charges. 180

Section 9.2 – Line Restoral Charge. 186

Section 9.3 – Extended Wiring 186

Section 9.4 – Account Detail Fee 187

Section 9.5 – Duplicate Bills 187

Section 9.6 – T1 Expedite Request Charge 187

Section 9.7 – Idle T1 Charge 188

Section 9.8 – Payphone Surcharge 188

Section 9.9 – Carrier Cost Recovery Fee 188

Section 9.10 – Maintenance Coverage for Customer Premise Equipment 188

SECTION 10 – PROMOTIONS AND DISCOUNTS 189

Section 10.1 – Promotional Offerings. 189

Section 10.2 – Volume Level Discounts 189

Section 10.3 – Installation Discount 190

Section 10.4 – Associations Program 190

SECTION 11 – RETIRED LOCAL SERVICES 191

Section 11.1 – DUNE Service 191

Section 11.2 – T-PAC Service 193

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 5

NONREGULATED SERVICES

TABLE OF CONTENTS (Continued)

SECTION 12 – RETIRED LONG DISTANCE SERVICES 197

Section 12.1 – Unison Option A. 197

Section 12.2 – Unison Select Dedicated Option 2. 199

Section 12.3 – Unison Select Switched Option 4. 200

Section 12.4 – Unison Select Switched Option 5. 201

Section 12.5 – Quest Option A. 202

Section 12.6 – Aspect Option D. 204

Section 12.7 – Patron. 206

Section 12.8 – DeltaCom Business Connections Switched Option 1. 208

Section 12.9 – DeltaCom Business Connections Switched Option 2. 209

Section 12.10 – DeltaCom Business Connections Switched Option 3. 210

Section 12.11 – DeltaCom Business Connections Dedicated Option 4. 211

Section 12.12 – DeltaCom Business Connections Dedicated Option 5 212

Section 12.13 – DeltaCom Business Connections Dedicated Option 6 213

Section 12.14 – DeltaCom Business Connections Dedicated Option 7 214

Section 12.15 – EnterpriseLD Switched Option 1 215

Section 12.16 – EnterpriseLD Switched Option 2 216

Section 12.17 – EnterpriseLD Dedicated Option 3 217

Section 12.18 – EnterpriseLD Dedicated Option 4 218

Section 12.19 – EnterpriseLD Dedicated Option 5 219

Section 12.20 – 100 FreeLD 220

Section 12.21 – S100 LD Plan 221

SECTION 13 – GRANDFATHERED LOCAL SERVICES 222

Section 13.1 – Unity Service 222

Section 13.2 – Free Month Offering 228

Section 13.3 – Simplici-T Service 229

Section 13.4 – Optional Features Feature Plans 235

Section 13.5 – Secretarial Line Service 236

Section 13.6 – Unity Service (CenturyTel Territory) 237

Section 13.7 – Unity Plus Service (CenturyTel Territory) 239

Section 13.8 – Simplici-T Service (CenturyTel Territory) 240

Section 13.9 – Simpli-Business T 244

Section 13.10 – RESERVED FOR FUTURE USE 247

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 6

NONREGULATED SERVICES

TABLE OF CONTENTS (Continued)

SECTION 14 – GRANDFATHERED LD SERVICES 248

Section 14.1 – Travel Call 248

Section 14.2 – Unison Option A for Associations 249

Section 14.3 – Unison Option J 251

Section 14.4 – Unison Plus 252

Section 14.5 – Unison Select Switched Option 4 for Associations 254

Section 14.6 – Unison Select Switched Option 5 for Associations 256

Section 14.7 – Quest Option A for Associations 258

Section 14.8 – Quest Option L 260

Section 14.9 – DeltaCom Flexline 260

Section 14.10 – Custom Design 800 261

Section 14.11 – Custom Design WATS 262

Section 14.12 – Custom Design Plus 800 263

Section 14.13 – Premier Advantage 264

Section 14.14 – Pinnacle 268

Section 14.15 – Aspect Options A, B, C and H 270

Section 14.16 – Aspect Option D for Associations 271

Section 14.17 – Aspect Option E 273

Section 14.18 – Aspect Option G 273

Section 14.19 – Aspect Options M and N 274

Section 14.20 – Destiny 275

Section 14.21 – Personal 800 285

Section 14.22 – Inbound 800 Service Features 286

Section 14.23 – Encore Card 292

Section 14.24 – Family Connections Plus 293

Section 14.25 – Select 100 294

Section 14.26 – DeltaCom Business Connections Switched Option 1 for Associations 295

Section 14.27 – DeltaCom Business Connections Switched Option 2 for Associations 296

Section 14.28 – DeltaCom Business Connections Switched Option 3 for Associations 297

Section 14.29 – EnterpriseLD Option 1 for Associations 298

Section 14.30 – EnterpriseLD Option 2 for Associations 299

Section 14.31 – HorizonLD Switched Option 1 for Associations 300

Section 14.32 – HorizonLD Switched Option 1 for Associations 301

Section 14.33 – DeltaCom MTS/Smart Talk 302

Section 14.34 – Free Month Offering 302

Original Page 7

NONREGULATED SERVICES

APPLICATION OF TARIFF

This tariff sets forth the service offerings, rates, terms and conditions applicable to the furnishing of nonregulated local exchange and long distance services by DELTACOM, INC., to Customers within the state of Alabama.

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 8

NONREGULATED SERVICES

SECTION 1 - DEFINITION OF TERMS

Certain terms used generally throughout this tariff are defined below:

Access Line: An arrangement that connects the customer’s location to a DeltaCom, Inc. network switching center.

Advance Payment: Part or all of a payment required before the start of service.

Authorization Code or Identification Code: A numerical code, one or more which are available to a customer to enable him to access the carrier, and which are used by the carrier both to prevent unauthorized access to its facilities and to identify the customer for billing purposes.

Authorized User: A person, firm, corporation or other entity that either is authorized by the Customer to use local exchange telephone service or is placed in a position by the Customer, either through acts or omissions, to use local exchange telephone service.

Automatic Number Identification ("ANI"): Allows the automatic transmission of a caller's billing account telephone number to a local exchange company, interexchange carrier or a third party subscriber. The primary purpose of ANI is to allow for billing of toll calls.

Business Service: A switched network service that provides for dialed Station communications that is described as a business or commercial rate.

Call: An attempted or completed communication.

Call Block: Feature, which may be added to an exchange line that provides the Customer the ability to prevent incoming calls from up to six different telephone numbers. Callers on the line will hear an announcement informing them that their call has been blocked and will not be accepted by the called party.

Call Forwarding Busy Line: Automatically routes incoming calls to a designated answering point when the call line is busy.

Call Forwarding Busy Line (Customer Controlled): Enables the Customer to control Call Forwarding Busy Line, from the base station line, the activation and deactivation of the service by using dialing codes.

Call Forwarding Don’t Answer: Automatically routes incoming calls to be forwarded to a designated answering point when the call line does not answer within a pre-specified number of rings.

ISSUED: May 31, 2007 EFFECTIVE: June 1, 2007

DELTACOM, INC. NONREGULATED SERVICES TARIFF

7037 Old Madison Pike Alabama

Huntsville, Alabama 35806

Original Page 9

NONREGULATED SERVICES

SECTION 1 - DEFINITION OF TERMS (Continued)

Call Forwarding Don’t Answer (Customer Controlled): Enables the Customer to control Call Forwarding Don’t Answer, from the base line station, by using dialing codes.

Call Forwarding Don’t Answer-Ring Control: Enables the Customer to control the number of rings or seconds, depending on the specific technology involved, before incoming calls are routed to a designated answering point when the call line does not answer.

Call Forwarding Variable: Enables the user to transfer incoming calls to another telephone number by dialing a code and the telephone number of the service to which calls are to be transferred.

Call Forwarding Variable-Remote Access: Enables the Customer to activate and deactivate Call Forwarding Variable remotely from any line/equipment capable of push button signaling rather than only from the base station line.

Call Forwarding Multipath: Enables a Customer who subscribes to Call Forwarding to specify the number of calling paths that will be forwarded to another telephone number. The total number of calling paths cannot exceed the number of lines/trunks in the forwarding hunting arrangement. In all cases, the number of call forwarding paths is dependent upon the terminating capability of the forward-to directory number. For the Call Forwarding Don’t Answer feature, each call will be forwarded at the completion of each ring cycle.

Call Hold: Allows the User to dial an access code to place the current call on hold.

Call Return: Enables a Customer to place a call to the telephone number associated with the most recent call received whether or not the call was answered or the number is known. The Customer can dial a code to request that the network place the call.

CallSaver Auto-Attendant: This flat rated voice mail service provides a tree of nine (9) separate mailboxes that are tied to a single mailbox, functioning as an auto attendant. It allows the subscriber to record two (2) greetings, each two minutes in length. Mailboxes receiving calls from the CallSaver Auto-Attendant will be either CallSaver Basic or CallSaver Pager type boxes. In addition to the monthly recurring charge associated with this product, there is also a non-recurring set-up charge applicable upon initial mailbox establishment and each time a change is made in the Auto-Attendant mailbox. Each CallSaver Basic and Pager mailbox will be priced in addition to the monthly recurring charge for Auto-Attendant and according to rates as set forth in this Tariff.