Monday, U.S.-based Cisco Systems, Inc, along with postponing the offer period for Norway's Tandberg ASA, also increased its cash offer for the same to 170 Norwegian kroner a share from NOK153.50 a share offered earlier.  

Cisco explained that the new offer represents the final price for this transaction. However, the company, if fails to get the wanted 90% level of acceptances; may also withdraw the offer.  

Tandberg's shares are valued at around NOK19 billion ($3.41 billion) by the raised offer.