FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * LAUWERS J CHRIS   2. Issuer Name and Ticker or Trading Symbol AVISTAR COMMUNICATIONS CORP [AVSR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CTO (Last) (First) (Middle) C/O AVISTAR COMMUNICATIONS CORPORATION, 1875 SOUTH GRANT STREET, 10TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 06/15/2010 (Street) SAN MATEO, CA 94402 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Underlying Securities (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		24,000		(1)	06/15/2020	Common Stock	24,000	(2)	24,000	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		3,125		(3)	06/15/2020	Common Stock	3,125	(2)	27,125	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		17,327		(3)	06/15/2020	Common Stock	17,327	(2)	44,452	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		39,180		(3)	06/15/2020	Common Stock	39,180	(2)	83,632	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		80,913		(3)	06/15/2020	Common Stock	80,913	(2)	164,545	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		90,166		(3)	06/15/2020	Common Stock	90,166	(2)	254,711	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		30,625		(3)	06/15/2020	Common Stock	30,625	(2)	285,336	D
Incentive Stock Option (right to buy)	$ 0.55	06/15/2010		A		26,250		(3)	06/15/2020	Common Stock	26,250	(2)	311,586	D
Incentive Stock Option (right to buy)	$ 0.86	06/15/2010		D			6,250	(4)	04/16/2011	Common Stock	6,250	(2)	0	D
Incentive Stock Option (right to buy)	$ 0.9	06/15/2010		D			112,708	(5)	04/23/2013	Common Stock	112,708	(2)	0	D
Incentive Stock Option (right to buy)	$ 0.95	06/15/2010		D			30,000	(5)	04/15/2019	Common Stock	30,000	(2)	0	D
Incentive Stock Option (right to buy)	$ 1.16	06/15/2010		D			101,142	(5)	04/21/2014	Common Stock	101,142	(2)	23,858	D
Incentive Stock Option (right to buy)	$ 1.16	06/15/2010		D			23,858	(5)	04/21/2014	Common Stock	23,858	(2)	0	D
Incentive Stock Option (right to buy)	$ 1.21	06/15/2010		D			43,750	(5)	05/14/2012	Common Stock	43,750	(2)	0	D
Incentive Stock Option (right to buy)	$ 1.47	06/15/2010		D			37,500	(5)	04/10/2011	Common Stock	37,500	(2)	0	D
Incentive Stock Option (right to buy)	$ 1.52	06/15/2010		D			24,753	(5)	04/18/2016	Common Stock	24,753	(2)	0	D
Incentive Stock Option (right to buy)	$ 1.6	06/15/2010		D			37,500	(5)	04/18/2017	Common Stock	37,500	(2)	0	D
Incentive Stock Option (right to buy)	$ 2.91	06/15/2010		D			60,278	(5)	04/20/2015	Common Stock	60,278	(2)	0	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		25,944		(3)	06/15/2020	Common Stock	25,944	(2)	25,944	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		26,250		(3)	06/15/2020	Common Stock	26,250	(2)	52,194	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		15,750		(3)	06/15/2020	Common Stock	15,750	(2)	67,944	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		17,672		(3)	06/15/2020	Common Stock	17,672	(2)	85,616	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		25,819		(3)	06/15/2020	Common Stock	25,819	(2)	111,435	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		19,086		(3)	06/15/2020	Common Stock	19,086	(2)	130,521	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		29,833		(3)	06/15/2020	Common Stock	29,833	(2)	160,354	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		18,375		(3)	06/15/2020	Common Stock	18,375	(2)	178,729	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		43,750		(3)	06/15/2020	Common Stock	43,750	(2)	222,479	D
Non-Qualified Stock Option (right to buy)	$ 0.55	06/15/2010		A		5,000		(3)	06/15/2020	Common Stock	5,000	(2)	227,479	D
Non-Qualified Stock Option (right to buy)	$ 0.86	06/15/2010		D			51,888	(4)	04/16/2011	Common Stock	51,888	(2)	0	D
Non-Qualified Stock Option (right to buy)	$ 0.9	06/15/2010		D			37,292	(5)	04/23/2013	Common Stock	37,292	(2)	0	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LAUWERS J CHRIS C/O AVISTAR COMMUNICATIONS CORPORATION 1875 SOUTH GRANT STREET, 10TH FLOOR SAN MATEO, CA 94402			CTO

Signatures

By: Elias MurrayMetzger For: Jozef Chris Lauwers		06/17/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The option vests as to 34% of the shares on the first anniversary of the grant date, and as to 33% of the shares on each of the next yearly anniversaries of the grant date, so as to fully vested in 3 years, subject to continued service through each vesting date; provided, however, that the granted option fully vests and is exercisable as to 100% of the shares upon a change in control.
(2)	On June 15, 2010, the issuer canceled, pursuant to the issuer's option exchange program, the eligible unexercised options granted to the reporting person. In exchange for these canceled options, the reporting person received new options to purchase the issuer's Common Stock.
(3)	The option vests as to 50% of the shares on the first anniversary of the grant date, and as to 50% of the shares on the second year anniversary of the grant date, subject to continued service through each vesting date; provided, however, that the granted option fully vests and is exercisable as to 100% of the shares upon a change in control.
(4)	33.3% of the shares subject to the option shall become vested and excercisable 6 months after the date of the grant and 4.8% of the shares subject to the option shall vest at the end of each month thereaafter until the completion of the 20 month vesting period.
(5)	25% of the shares subject to the option shall become vested and exercisable one year after the date of grant and 1/16th of the sares subject to the option shall vest at the end of each three month period thereafter

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