SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934


Filed by the Registrant  [X]
Filed by a Party other than the Registrant  [   ]

Check the appropriate box:
[   ]         Preliminary Proxy Statement
[   ]         Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
[   ]         Definitive Proxy Statement
[X]         Definitive Additional Materials
[   ]         Soliciting Material Pursuant to §240.14a-12


ALTIGEN COMMUNICATIONS, INC.
(Name of Registrant as Specified in its Charter)


Payment of Filing Fee (Check the appropriate box):
 
 
[X] 
No fee required.
[   ]
 Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
       
(1)
Title of each class of securities to which transaction applies:
     
(2)
Aggregate number of securities to which transaction applies:
      
(3) 
Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
      
(4) 
Proposed maximum aggregate value of transaction:
     
(5) 
Total fee paid:
     
 
[   ]
Fee paid previously with preliminary materials.
[   ]
Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously.  Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
 
(1)
Amount Previously Paid:
     
 
(2)
 Form, Schedule or Registration Statement No.:
      
 
(3)
 Filing Party:
      
 
(4)
 Date Filed:
      
 
 
 
 
On May 22, 2009, AltiGen Communications, Inc. issued the following press release.
 
 
 
 

 
 Exhibit 99.1
 
 
 

 
ALTIGEN POSTPONES SPECIAL MEETING OF STOCKHOLDERS;
ANNOUNCES NEW LOCATION FOR HEADQUARTERS AND SPECIAL MEETING
 
Fremont, CA, May 22, 2009 – AltiGen Communications, Inc. (NASDAQ: ATGN), a leading provider of 100% Microsoft-based VoIP business phone systems and Unified Communications solutions, announced today that it has postponed its previously scheduled special meeting of stockholders from May 26, 2009 to June 18, 2009, at 10 a.m., local time.  The location of such meeting has also been changed to 410 East Plumeria Drive, San Jose, CA 95134, which will be the company’s new headquarters effective June 1, 2009.  The postponement was made to provide adequate time for AltiGen to present additional information to its stockholders in light of certain recent public comments made by one of the company’s existing stockholders and to provide AltiGen stockholders sufficient time to consider all relevant information and vote accordingly.  Additionally, it has become apparent that additional votes would be required in order to attain a necessary quorum of stockholders at the originally scheduled meeting date.
 
AltiGen filed its definitive proxy materials for the special meeting of stockholders on April 27, 2009, which set forth proposals to (i) adopt a new 2009 Equity Incentive Plan and (ii) adopt a new 2009 Employee Stock Purchase Plan. If you have previously submitted your proxy card and do not wish to change your vote, no further action is required by you at this time.  If you would like to change your vote, please refer to the instructions provided in the proxy materials which are available at http://www.sec.gov.  The record date for stockholders entitled to vote at the special meeting remains April 23, 2009.
 
 
About AltiGen Communications 
 
AltiGen Communications, Inc. (NASDAQ: ATGN) is a leading provider of 100% Microsoft-based VoIP business phone systems and Unified Communications solutions. Having more than 10,000 customers around the world, AltiGen solutions are designed for high reliability, ease of use, seamless integration to Microsoft infrastructure technologies, and are built on a scalable, open standards platform. AltiGen’s worldwide headquarters is in Silicon Valley, California, with international operations based in Shanghai, China. Local sales, service and support are provided by AltiGen’s worldwide network of over 300 certified partners. For more information, call 1-888-ALTIGEN or visit the web site at www.altigen.com.
 
 

Contact:
  
Phil McDermott
Todd Kehrli or Jim Byers
Chief Financial Officer
Investor Relations
AltiGen Communications
MKR Group, Inc.
(510) 252-9712
(323) 468-2300
pmcdermott@altigen.com
atgn@mkr-group.com