- Termination of Registration of a Class of Security under Section 12(g) (15-12G)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.

Commission File Number 000-31121

AVISTAR COMMUNICATIONS CORPORATION
(Exact name of registrant as specified in its charter)

1855 S. Grant Street, 4 ^th Floor,

San Mateo, California 94402
(650) 525-3300
(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

Common Stock, par value $0.001 per share

(Title of each class of securities covered by this Form)

None
(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

Rule 12g-4(a)(1)	x
Rule 12g-4(a)(2)	o
Rule 12h-3(b)(1)(i)	x
Rule 12h-3(b)(1)(ii)	o
Rule 15d-6	o

Approximate number of holders of record as of the certification or notice date: 71

Pursuant to the requirements of the Securities Exchange Act of 1934, Avistar Communications Corporation has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

	AVISTAR COMMUNICATIONS CORPORATION
Date: July 26, 2012	By:	/s/ Elias A. MurrayMetzger
	Name:	Elias A. MurrayMetzger
	Title:	Chief Financial Officer, Chief Administrative Officer and Corporate Secretary