8-K/A

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

CURRENT REPORT
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) – November 10, 2004

TOLLGRADE COMMUNICATIONS, INC.

(Exact Name of Registrant as Specified in Its Charter)

Pennsylvania	000-27312	25-1537134
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

493 Nixon Road
Cheswick, Pennsylvania 15024
(Address of Principal Executive Offices) (Zip code)

Registrant’s telephone number, including area code — (412) 820-1400

N/A
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

	ITEM 7.01 REGULATION FD DISCLOSURE
	ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS
SIGNATURES
EXHIBIT INDEX
EX-99.1 Information Furnished Pursuant to Regulation FD

Explanatory Note

This Form 8-K/A amends the Form 8-K dated November 10, 2004. The submission heading under which the original 8-K was submitted erroneously referred to Item numbers 2.02 and 9.01, when in fact it should have referred to Items 7.01 and 9.01. The purpose of this amendment is to reflect the correct Item numbers in the submission. The content of this amendment is identical to the original Form 8-K.

ITEM 7.01 REGULATION FD DISCLOSURE

The Registrant elects to disclose under this Item 7.01 pursuant to Regulation FD (17 CFR 243.100 — 243.103) the information contained in Exhibit 99.1 furnished herewith, which information is incorporated in this Item 7.01 by reference. Such information shall not be deemed to be filed hereunder for purposes of liability under the Securities Exchange Act of 1934 or for purposes of incorporation by reference in any registration statement filed by the Registrant under the Securities Act of 1933.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

Exhibit
Number	Description
99.1	Information furnished pursuant to Regulation FD (17 CFR 243.100 - 243.103)

SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	TOLLGRADE COMMUNICATIONS, INC.
Date: November 10, 2004	By:	/s/ Jennifer Reinke
		Jennifer Reinke
		Assistant Secretary

EXHIBIT INDEX

(Pursuant to Item 601 of Regulation S-K)

Exhibit
Number	Description and Method of Filing
99.1	Information furnished pursuant to Regulation FD, filed herewith.

EX-99.1

CORPORATE OVERVIEW

A Market Leader in Testing for Voice and Cable Broadband in North America Tollgrade Communications, Inc.

It's Been Tough, But Remember ... Solid Telco & Cable Market Share 2003 Revenue Growth Related to Acquisitions New Solutions For Broadband 54.8% YTD Gross Margins DSL Momentum In RBOCs and Tier 2s Q4 '04 Momentum

Elevator Pitch If Your Phone Line Doesn't Work, We Tell You What's Wrong We Can Also Test DSL If The Cable Power Goes Out, We Warn You Ahead of Time Will Also Test VOIP Will Also Test VOIP Will Also Test VOIP Will Also Test VOIP Will Also Test VOIP Will Also Test VOIP Will Also Test VOIP

DSL DSL RBOC DSL Subscribers 2.9 million 1.7 million 4.3 million ..74 million

Public Internet The DSL Network IP Network ATM Network ATU-R DSLAM ATM Switch Class 5 Server Complex C4/Toll Network Optical Mux Metallic Faults - 8% DSLAM/ATM Faults- 11% ISP Faults - 22% CPE Faults - 40% Other - 19%

Public Internet Tollgrade in the DSL Network IP Network ATM Network ATU-R DSLAM ATM Switch Class 5 Server Complex C4/Toll Network Optical Mux DigiTest DigiTest EDGE

Tollgrade's DSL Solution CENTRAL OFFICE POTS Turn-up vs. DSL ..8 Dispatches vs. 2.4 Dispatches QUALIFY more lines for DSL REDUCE Trouble Tickets and Handling REDUCE Non-productive Dispatches.

RBOC POTS Lines Tollgrade Tests 150 Million POTS subscribers in North America. RBOCs shoot trouble on 2-3% of lines a month. 60 MM-Line RBOC = 1,200,000 Calls A Month Half Require Dispatch 10 million test sequences per month in highly automated fashion. 54.4 million 21.8 million 53.6 million 16 million

Tollgrade in the POTS Network C4/Toll Network DLC RT Class 5 DLC COT Metallic Faults DSL Pre-Qualification Class 5 Provisioning Faults Inside Wiring Faults DLC Testability LoopCare TestOSS Other OSS/EMS Systems DigiTest MCU

Testing Vitally Important to RBOCs Tollgrade's "Teaming Spirit" helped our customer exceed their testability objectives. Tollgrade's program "will result in a significant reduction in costs by reducing unnecessary field dispatches."

Tollgrade's Cable Solution Cable Companies Have Less Robust Back-Up Power Than Telco Proactive Monitoring of Entire Network We Can Upgrade to Support High-speed Internet, VoIP, and Internet Video Services

Tollgrade Cable Customers Tollgrade Cable Products Manage Outside Plant HFC Status for over 70% of North America's Cable Broadband Operators.

Tollgrade in the Cable Network Public Internet Server Complex VoIP Gateway Softswitch CMTS PSTN NODE/PS Edge Router O/E HFC Faults - 20% CMTS/LocalIP - 20% IP Handoffs - 20% CPE Faults - 30% Other - 10% Cheetah IP DOCSIS TXP Cheetah Probe

2004 YTD

Q3 YTD Revenue - 2003 vs. 2004 (Dollars in Millions) Q3 YTD '03 Q3 YTD '04 EPS 47.2 46.7 $47.3 MM $46.7 MM

Q3 YTD Earnings - 2003 vs. 2004 Q3 YTD '03 Q3 YTD '04 EPS 0.14 0.07 $0.14 $0.05

Quarterly Sales Trend (Dollars in Millions) Q3'03 Q4'03 Q1'04 Q2'04 Q3'04 Revenue 15.6 17.8 17.6 15.5 13.6 $15.6 $17.8 $17.6 $15.5 $13.6 $13.6

MCU Sales Trend (Dollars in Millions) Q3'03 Q4'03 Q1'04 Q2'04 Q3'04 Revenue 6.5 7.9 6.9 4.1 4.6 $6.5 $7.9 $6.9 $4.1 $4.6 $4.6

Q3'03 Q4'03 Q1'04 Q2'04 Q3'04 Revenue 2.4 0.79000000013148 0.94 1.6 2.9 $2.4 $.79 $.94 $1.6 $2.9 $2.9 DigiTest/EDGE System Sales Trend (Dollars in Millions)

Q4'03 Q1'04 Q2'04 Q3'04 RBOC 5 5 5 7 Tier 2 & 3 3 4 11 22 $.5 $.3 $.5 $.4 $.5 $1.1 $.7 $2.2 Tier 2 & 3 TRENDLINE DigiTest/EDGE RBOC Vs. Indy (Dollars in Millions)

CLEC/IOC Sales (Dollars in Thousands) Q103 Q203 Q303 Q403 Q104 Q204 Q304 DigiTest 596 33 393 147 245 434 1319 LoopCare 494 388 331 187 58 188 706 KYATT

Cable Sales Trend (Dollars in Millions) Q3'03 Q4'03 Q1'04 Q2'04 Q3'04 Revenue 3.5 5.2 4.9 6.4 2.4 $3.5 $5.2 $4.9 $6.4 $2.4 $2.4

LoopCare Sales Trend (Dollars in Millions) Q3'03 Q4'03 Q1'04 Q2'04 Q3'04 Revenue 2.2 3 3.7 2.8 2.6 $2.2 $3.0 $3.7 $2.8 $2.6 $2.6

Services Sales Trend (Dollars in Millions) (Includes Software Maintenance) Q3'03 Q4'03 Q1'04 Q2'04 Q3'04 Revenue 3.1 3 3.2 3.2 3.3 $3.1 $3.0 $3.2 $3.2 $3.3 $3.3

2004 Q3 YTD Product Mix CABLE MCU LOOPCARE DIGITEST SERVICES PRODUCT MIX 29.4 33.9 19.8 10.6 6.3 CABLE 29.4% SERVICES 6.3% DIGITEST(r) 10.6% LOOPCARE(tm)* 19.8% MCU(r)** 33.9% *Includes Maintenance Services ** MCU purchases front loaded in '04

DSL DSL Tollgrade's DSL Product Momentum RBOCs DSL Prequal Opportunities Q4 Deployment Contingent On Year-End Budget Major Tier 1 ILEC and Major Tier 2 Opportunities 2.9 million 1.7 million 4.3 million ..74 million

Q4 Potential (Dollars in Millions) Q1'04 Q2'04 Q3'04 Q4'04 Revenue 17.6 15.5 13.6 17 $17.6 $15.5 $13.6 $17.0 High End End End End

$124,000 In Q3

Q3 2004 Test Head Momentum $400,000 $400,000 $390,000 $300,000 $107,000 $107,000 Canada

POTS Still A Good Business 54.4 million 21.8 million 53.6 million 16 million

Cheetah Progress CableLabs Certified Embedded Solution 10,000-Piece Additional Order Received 13,000-Unit Backlog Slated For Q4

20,000 UNITS Ordered YTD DOCSIS TRX

Q4 Forecast Current Forecast Range $13 - $ 17 Million Does Not Include Potential Business RBOC DSL Prequal International Project Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3 Tier 2 and 3

Strategy Going Forward Maximize RBOC Sales Force Greater Focus On Tier 2s & 3s DMU DSL Prequal Roll-Out Aggressive DOCSIS and VOIP Rollout In Cable VOIP Firmware and CheetahXD Adapt VOIP Strategy To RBOCs Finalize FTTN Strategy Finalize FTTN Strategy Finalize FTTN Strategy Finalize FTTN Strategy Finalize FTTN Strategy Finalize FTTN Strategy Finalize FTTN Strategy Finalize FTTN Strategy