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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(Print or Type Responses)

1. Name and Address of Reporting Person * WANGER LONG TERM OPPORTUNITY FUND II, LP   2. Issuer Name and Ticker or Trading Symbol ALTIGEN COMMUNICATIONS INC [ATGN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 401 N. MICHIGAN AVE., SUITE 1301 3. Date of Earliest Transaction (Month/Day/Year) 09/25/2009 (Street) CHICAGO, IL 60611 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ 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 Common Stock 09/25/2009   S   180,000 D $ 1.03 1,618,617 D (1) (2) (3)

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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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
WANGER LONG TERM OPPORTUNITY FUND II, LP 401 N. MICHIGAN AVE. SUITE 1301 CHICAGO, IL 60611		X
Wanger Investment Management, Inc. 401 N. MICHIGAN AVE. SUITE 1301 CHICAGO, IL 60611		X
WLTOF GP LLC 401 N. MICHIGAN AVE. SUITE 1301 CHICAGO, IL 60611		X
Wanger Eric 401 N. MICHIGAN AVE. SUITE 1301 CHICAGO, IL 60611		X

Signatures

Wanger Long Term Opportunity Fund II, LP, for itself and as designee for the other Reporting Persons		09/29/2009
**Signature of Reporting Person		Date
Wanger Investment Management, Inc.		09/29/2009
**Signature of Reporting Person		Date
WLTOF GP LLC		09/29/2009
**Signature of Reporting Person		Date
/s/ Eric D. Wanger		09/29/2009
**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)	Reporting Person Wanger Investment Management, Inc. ("WIM") manages investment portfolios for clients including Reporting Person Wanger Long Term Opportunity Fund II, LP ("WLTOF"). In that capacity, WIM has shared voting and dispositive power over the common stock of the Issuer ("Common Stock") held by WLTOF and accordingly is deemed to be a beneficial owner of such Common Stock for Section 16 reporting purposes. Except for such deemed beneficial ownership, WIM does not own any Common Stock or other equity securities of the Issuer. WIM disclaims beneficial ownership of the Common Stock reported hereunder.
(2)	Reporting Person WLTOF GP LLC ("GP") is the general partner of WLTOF. In that capacity, GP has shared voting and dispositive power over the Common Stock held by WLTOF and accordingly is deemed to be a beneficial owner of such Common Stock for Section 16 reporting purposes. Except for such deemed beneficial ownership, GP does not own any Common Stock or other equity securities of the Issuer. GP disclaims beneficial ownership of the Common Stock reported hereunder except to the extent of its beneficial interest in WLTOF.
(3)	Reporting Person Eric D. Wanger ("Mr. Wanger") controls WLTOF through (a) GP, of which Mr. Wanger is managing member, and (b) WIM, in which the Reporting Person has an interest and which provides investment management services to WLTOF. In those capacities, he is deemed to be the beneficial owner of such Common Stock for Section 16 reporting purposes. Mr. Wanger disclaims beneficial ownership of the Common Stock reported hereunder except to the extent of his beneficial interest in WLTOF.

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