**Exhibit10.7.12**

1120 Pittsford-Victor RoadPittsford, New York 14534

 

 

February 1, 2006

Mr. Richard A. SmithEschelon Telecom, Inc.730 Second Avenue SouthSuite 1200Minneapolis, Minnesota 55402

RE:                 Amendment#12 to the Carrier Service Agreement between Eschelon Telecom, Inc. and GlobalCrossing Bandwidth, Inc.

Dear Mr. Smith:

Enclosed please find a fully executed original of theabove-referenced document for your records.

 
| Very truly yours,       |
|-------------------------|
|                    |
|                    |
| /s/ Karen L. Markle     |   |
| Karen L. Markle         |
| Contract Administration |
|                    |
| enclosures              |

 

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***EXECUTION COPY***

**AMENDMENT#12 TO CARRIER SERVICE AGREEMENT**

**ESCHELONTELECOM, INC.**

**January20, 2006**

This is Amendment #12 to the Carrier Service Agreementbetween Global Crossing Bandwidth, Inc., on behalf of itself and its affiliatesthat may provide a portion of the services hereunder **(“Global Crossing”),**and Eschelon Telecom, Inc. **(“Eschelon”**or **“Customer”),**dated August 25, 2000, as amended (the **“Agreement”).**

1.                                       Exceptas otherwise stated, capitalized terms used herein shall have the same meaningas set forth in the Agreement.

2.                                       GlobalCrossing’s Ancillary Fees Schedule, identified as Exhibit B under theAgreement, has been updated and is attached as Amended Exhibit B.

3.                                       Therevised rates attached hereto shall be effective with Eschelon’s first full BillingCycle following the execution of this Amendment #12 by Global Crossing.

4.                                       Thebalance of the Agreement and any executed amendments or addenda thereto notmodified by this Amendment #12 shall remain in full force and effect.

5.                                       ThisAmendment #12 is effective as of the date signed by Global Crossing below.
| **Global Crossing Bandwidth, inc.** | ** **                                                                                         | **Eschelon Telecom, Inc.** |
|-------------------------------------|----------------------------------------------------------------------------------------------------|----------------------------|
| ** **                          | ** **                                                                                         | ** **                 |
| ** **                          |                                                                                               | ** **                 | ** ** | ** ** |
| By:                                 | /s/ Cody Jenkins                                                                                   |                       | By: | /s/ Richard A.  Smith |   |
|                                |   Cody  Jenkins  Vice President -    Global Wholesale Voice Services |                       |   |   Richard A. Smith    President and CEO |
|                                |                                                                                               |                       |   |   |
| Date:                               | 2/1/06                                                                                             |                       | Date: | 1/26/06 |   |
|                                     |                                                                                                    |                            |  |  |  |  |  |  |

 

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**Amended Exhibit B**

 

**SCHEDULEOF ANCILLARY FEES**
| ** **                                                               | ** ** | **NRC** | ** ** | **MRC** | ** ** |
|--------------------------------------------------------------------------|------------|---------|------------|---------|------------|
| **Electronic Exchange: (“EE”)**                                |       |    |       |    |       |
| Set-up Fee                                                               |       | $       | 500        |    |       |   |
| Monthly  Recurring Charge for Service                                    |       |    |       | $       | 250        |   |
| **Call Detail Records (excluding  EE) if applicable:**                   |       |    |       |    |       |
| Per CD ROM Disk                                                          |       |    |       | $       | 100        |   |
| Programming  charges to change format (per hour, per request)            |       | $       | 120        |    |       |   |
| **Dedicated & Switched Toll  Free* Unbillable Call Detail Records:** |       |    |       |    |       |
| Set-up Fee                                                               |       | $       | 500        |    |       |   |
| Monthly Recurring  Charge for Service                                    |       |    |       | $       | 250        |   |

 

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* Not including Carrier Toll-Free Transport Services
| **Toll-Free SMS Database Administration:**      | ** ** | **NRC** | ** ** | **MRC** | ** ** |
|----------------------------------------------------------------|------------|---------|------------|---------|------------|
| Global Crossing  RespOrg Maintenance Service Charges*          |       | $       | 0          |    | $          | 0 |   |
| Pass-through per  active Global Crossing RespOrg Toll-Free No. |       | $       | 0          |    | $          | 0.2600 |   |
| Directory  Assistance Listing Implementation                   |       | $       | 15         |    | $          | 0 |   |
| Directory Assistance  Listing per Toll-Free Number             |       | $       | 0          |    | $          | 15 |   |

 
| **Voice Services ISDN PRI Signaling Charge:** | ** ** | **NRC** | ** ** | **MRC** | ** ** |
|------------------------------------------------------------------------|------------|---------|------------|---------|------------|
| Installation Fee  (per d Channel)                                      |       | $       | 500        |    |       |   |
| Monthly Service Charge  ISDN Configuration (per d Channel)             |       |    |       | $       | 100        |   |
|                                                                        |            |         |            |         |            |  |  |

 
| Voice Order Change Charge: | ** ** | **NRC** | ** ** | ** ** | ** ** |
|-------------------------------------------|------------|---------|------------|------------|------------|
| **  **                          |       | $       | 100        | ** ** | ** ** | ** ** |
|                                           |            |         |            |            |            |  |

 

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* Global Crossing RespOrg Maintenance Service Chargesinclude any special request RespOrg related activities when carriers are theirown RespOrg. For Carriers utilizing Global Crossing’s RespOrg ID, this chargeis not applicable.

**Presubscribed Interexchange CarrierCharges (PICC): *(CustomerSpecific Pricing)***
| Line Type                                                  | ** ** | **Maximum Charge** | ** ** |
|-----------------------------------------------------------------|------------|-------------------------|------------|
| Residence  Primary (per Line or Trunk)                          |       | $                       | 0          |   |
| Residence  Non-Primary (per Line or Trunk)                      |       | $                       | 0          |   |
| Single Line  Business Subscriber (per individual line or trunk) |       | $                       | 0          |   |
| Multi-Line  Business Subscriber (per individual line or trunk)  |       | $                       | 2.78       |   |
| ISDN BRI  Subscriber (per facility)                             |       | $                       | 0          |   |
| ISDN PRI, T-l  (per facility)                                   |       | $                       | 0          |   |
| ISDN BRI  Residential                                           |       | $                       | 0          |   |
| Centrex Subscriber (per  individual station line)               |       | $                       | 2.78       |   |

 

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**AssociationCharge:**

Upon new account set-up, Customer will be provided one(1) unique customer identifier (“Association ID”). Requests for each additionalAssociation ID will be charged a monthly recurring charge (MRC) of $200.

**LocalLoop Charges:**

All local loop monthly recurring and non-recurring(installation) charges shall be on a case-by-case basis, based upon vendor,mileage, location, circuit speed and term.

**LocalLoop Cancellation Charges:**

Prior To Installation: Customer willbe charged all applicable installation charges plus any other charges incurredin accordance with Section 4.8 of the Agreement

Post Installation:Customer will be assessed pass-through early termination or cancellationcharges from Global Crossing’s underlying access provider.

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