-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GFrXgVKw10YzOZdLRpw6eAlXWp+l1/55vOUjChUDCOe5/9hrZrsdUanTZrEAIWbD
 BOK2egsh9OS83bGtSXDTfQ==

<SEC-DOCUMENT>0001468593-10-000008.txt : 20100304
<SEC-HEADER>0001468593-10-000008.hdr.sgml : 20100304
<ACCEPTANCE-DATETIME>20100304194917
ACCESSION NUMBER:		0001468593-10-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100304
FILED AS OF DATE:		20100304
DATE AS OF CHANGE:		20100304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kirk Robert F
		CENTRAL INDEX KEY:			0001468593

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31121
		FILM NUMBER:		10658768

	MAIL ADDRESS:	
		STREET 1:		C/O AVISTAR COMMUNICATIONS CORPORATION
		STREET 2:		1875 SOUTH GRANT ST, 10TH FLOOR
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94402

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AVISTAR COMMUNICATIONS CORP
		CENTRAL INDEX KEY:			0001111632
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				880463156
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1875 SOUTH GRANT ST
		STREET 2:		10TH FLOOR
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94402
		BUSINESS PHONE:		6505253300

	MAIL ADDRESS:	
		STREET 1:		1875 SOUTH GRANT ST
		STREET 2:		10TH FLOOR
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94402
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-03-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001111632</issuerCik>
        <issuerName>AVISTAR COMMUNICATIONS CORP</issuerName>
        <issuerTradingSymbol>AVSR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001468593</rptOwnerCik>
            <rptOwnerName>Kirk Robert F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AVISTAR COMMUNICATIONS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1875 SOUTH GRANT ST, 10TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>SAN MATEO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94402</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-03-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>14308</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.55</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>91394</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>By: Elias MurrayMetzger  For: Robert F. Kirk</signatureName>
        <signatureDate>2010-03-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----