-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001193805-10-000106.txt : 20100106
<SEC-HEADER>0001193805-10-000106.hdr.sgml : 20100106
<ACCEPTANCE-DATETIME>20100106173347
ACCESSION NUMBER:		0001193805-10-000106
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100101
FILED AS OF DATE:		20100106
DATE AS OF CHANGE:		20100106

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TOLLGRADE COMMUNICATIONS INC \PA\
		CENTRAL INDEX KEY:			0001002531
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-TELEPHONE INTERCONNECT SYSTEMS [7385]
		IRS NUMBER:				251537134
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		493 NIXON RD
		CITY:			CHESWICK
		STATE:			PA
		ZIP:			15024
		BUSINESS PHONE:		4122742156

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RAMIUS ADVISORS LLC
		CENTRAL INDEX KEY:			0001275893
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512642

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2122014823

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RCG STARBOARD ADVISORS, LLC
		CENTRAL INDEX KEY:			0001329989
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512638

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-201-4841

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		STREET 2:		20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	Admiral Advisors, LLC
		DATE OF NAME CHANGE:	20050613

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RAMIUS VALUE & OPPORTUNITY MASTER FUND LTD
		CENTRAL INDEX KEY:			0001373638

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512640

	BUSINESS ADDRESS:	
		STREET 1:		C/O RAMIUS LLC
		STREET 2:		599 LEXINGTON AVENUE 2OTH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		(212) 201-4823

	MAIL ADDRESS:	
		STREET 1:		C/O RAMIUS LLC
		STREET 2:		599 LEXINGTON AVENUE 2OTH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	Starboard Value & Opportunity Master Fund Ltd
		DATE OF NAME CHANGE:	20060823

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RCG PB, Ltd
		CENTRAL INDEX KEY:			0001401165
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512641

	BUSINESS ADDRESS:	
		STREET 1:		C/O RAMIUS CAPITAL GROUP, LLC
		STREET 2:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2122014823

	MAIL ADDRESS:	
		STREET 1:		C/O RAMIUS CAPITAL GROUP, LLC
		STREET 2:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RAMIUS ENTERPRISE MASTER FUND LTD
		CENTRAL INDEX KEY:			0001418492
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512639

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2122014823

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE 20TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	RCG Enterprise Ltd
		DATE OF NAME CHANGE:	20071114

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ramius LLC
		CENTRAL INDEX KEY:			0001475770
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512643

	BUSINESS ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212 845 7900

	MAIL ADDRESS:	
		STREET 1:		599 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	Park Exchange LLC
		DATE OF NAME CHANGE:	20091030

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ramius Navigation Master Fund Ltd
		CENTRAL INDEX KEY:			0001479935

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27312
		FILM NUMBER:		10512637

	BUSINESS ADDRESS:	
		STREET 1:		C/O CITCO FUND SERVICES (CAYMAN ISLANDS)
		STREET 2:		REGATTA OFFICE PARK, WINDWARD 1, 2ND FL
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-1205
		BUSINESS PHONE:		212-845-7900

	MAIL ADDRESS:	
		STREET 1:		C/O CITCO FUND SERVICES (CAYMAN ISLANDS)
		STREET 2:		REGATTA OFFICE PARK, WINDWARD 1, 2ND FL
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-1205
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>e606281_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-01-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001002531</issuerCik>
        <issuerName>TOLLGRADE COMMUNICATIONS INC \PA\</issuerName>
        <issuerTradingSymbol>TLGD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001475770</rptOwnerCik>
            <rptOwnerName>Ramius LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>599 LEXINGTON AVE.</rptOwnerStreet1>
            <rptOwnerStreet2>20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001275893</rptOwnerCik>
            <rptOwnerName>RAMIUS ADVISORS LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001401165</rptOwnerCik>
            <rptOwnerName>RCG PB, Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001373638</rptOwnerCik>
            <rptOwnerName>RAMIUS VALUE &amp; OPPORTUNITY MASTER FUND LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001418492</rptOwnerCik>
            <rptOwnerName>RAMIUS ENTERPRISE MASTER FUND LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CITCO FUND SERVICES</rptOwnerStreet1>
            <rptOwnerStreet2>REGATA OFFICE PARK, WINDWARD 1</rptOwnerStreet2>
            <rptOwnerCity>GRAND CAYMAN</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001329989</rptOwnerCik>
            <rptOwnerName>RCG STARBOARD ADVISORS, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RAMIUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>599 LEXINGTON AVE., 20TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001479935</rptOwnerCik>
            <rptOwnerName>Ramius Navigation Master Fund Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CITCO FUND SERVICES</rptOwnerStreet1>
            <rptOwnerStreet2>REGATA OFFICE PARK, WINDWARD 1</rptOwnerStreet2>
            <rptOwnerCity>GRAND CAYMAN</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>335244</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Ramius Enterprise Master Fund Ltd</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>794514</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Ramius Navigation Master Fund Ltd</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>965199</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Ramius Value &amp; Opportunity Master</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.20 per share</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By RCG PB, Ltd</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transaction being filed with the Securities and Exchange Commission.</footnote>
        <footnote id="F2">Each Reporting Person (other than Ramius Enterprise Master Fund Ltd, Ramius Value and Opportunity Master Fund Ltd and Ramius Navigation Master Fund Ltd) disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F3">Shares of Common Stock beneficially owned by Enterprise Master Fund Ltd (Enterprise Master Fund).  Ramius Advisors, LLC (Ramius Advisors), as the investment advisor of Enterprise Master Fund, may be deemed to beneficially own the shares of Common Stock beneficially owned by Enterprise Master Fund.  Ramius LLC (Ramius), as the sole member of Ramius Advisors, may be deemed to beneficially own the shares of Common Stock beneficially owned by Enterprise Master Fund.</footnote>
        <footnote id="F4">RCG PB, Ltd (RCG PB) transferred all of the shares of Common Stock held by it to Ramius Navigation Master Fund Ltd (Navigation Master Fund) in a transaction exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-13 or otherwise.</footnote>
        <footnote id="F5">Shares of Common Stock beneficially owned by Navigation Master Fund.  RCG PB, as the sole shareholder of Navigation Master Fund, may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.  Ramius Advisors, as the investment advisor of Navigation Master Fund, may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.  Ramius, as the sole member of Ramius Advisors, may be deemed to beneficially own the shares of Common Stock beneficially owned by Navigation Master Fund.</footnote>
        <footnote id="F6">Shares of Common Stock beneficially owned by Ramius Value and Opportunity Master Fund Ltd (Value and Opportunity Master Fund). As the investment manager of Value and Opportunity Master Fund, RCG Starboard Advisors may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund.  Ramius, as the sole member of RCG Starboard Advisors, may be deemed to beneficially own the shares of Common Stock beneficially owned by Value and Opportunity Master Fund.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Ramius LLC; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: Ramius Advisors, LLC; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: RCG PB, Ltd; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: Ramius Value and Opportunity Master Fund Ltd; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: Ramius Enterprise Master Fund Ltd; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: RCG Starboard Advisors, LLC; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By: Ramius Navigation Master Fund Ltd; By: /s/ Owen S. Littman, Authorized Signatory</signatureName>
        <signatureDate>2010-01-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
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-----END PRIVACY-ENHANCED MESSAGE-----