DISCLOSURE UNDER CHAPTER 2, SECTION 10 OF THE FINNISH SECURITIES MARKETS ACT

TELESTE CORPORATION  STOCK EXCHANGE RELEASE  10.2.2009  AT 14:00                


DISCLOSURE UNDER CHAPTER 2, SECTION 10 OF THE FINNISH SECURITIES MARKETS ACT    

Teleste Corporation has received the attached notification from Reima Kuisla    
referring to Chapter 2, Section 9 of the Finnish Securities Markets Act on a    
change in holdings.                                                             


TELESTE CORPORATION                                                             

Jukka Rinnevaara                                                                
CEO                                                                             


ATTACHMENT:                                                                     

NOTIFICATION REFERED TO THE FINNISH SECURITIES MARKETS ACT ON A CHANGE OF       
HOLDINGS                                                                        

The holdings of Reima Kuisla have exceeded five percent of the share capital and
voting rights in Teleste Corporation. We hereby notify the Financial Supervisory
Authority and Teleste Corporation of the following:                             

1. Name of the company in which holdings have been acquired:                    
Teleste Corporation                                                             
2. Date of change in holdings: 10th February 2009                               
3. Exact proportion of share capital and voting rights in Teleste Corporation:  
Holdings by Reima Kuisla are now as follows:                                    

Number of shares 994 002,                                                       
Proportion of share capital and voting rights 5.59 %.                           

4. Shareholders name: Reima Kuisla                                     


Teleste in brief:                                                               
Teleste is an international technology group founded in 1954, which is          
specialized in broadband data communication systems and solutions. The group is 
divided into two Strategic Business Units: Broadband Cable Networks and Video   
Networks. Broadband Cable Networks serves cable operators and a major part of   
its business activities are handled through direct customer contact. Video      
Networks supplies solutions for optical signal transmission and video network   
management software solutions for video surveillance and a major part of its    
business is handled through system integrators. Both Business Units are among   
the leading providers in their market areas and are globally recognized for     
their know-how and ability to produce technically cutting edge solutions year   
after year. In 2008 the group's net sales totalled EUR 109 million and the group
employed 677 persons at the year-end. The company has approximately 30 offices  
world-wide and over 90% of Teleste's net sales are generated outside Finland.   
The company is listed on the NASDAQ OMX Helsinki Ltd.                           
Visit www.teleste.com for more information.                                     

DISTRIBUTION:                                                                   
NASDAQ OMX Helsinki                                                             
Media                                                                           
www.teleste.com