WE HAVE EXT 233 SET UP AS A CONFRENCE UNIT KONFTEL 300.WE CAN PRESS THE ON/LINK BUTTON GET INTERCOM DIAL 9 AND GO OUT TO MAKE A CALL. WE CAN INTERCOM NO ISSUE. WE HAVE A CALLER TRANSFERED IN TO THE MEETING ROOM ANSWER HIM AND PRESS LINK 2 TO MAKE A SECOND CALL. WORKS GOOD DIAL TONE APPEARS DIAL 9 GET SECOND CALL ESTABLISHED. THE ISSUE SEEMS LIKE WE CAN,T DO A LINK *3 TO GET THEM ALL TOGETHER IT SEEMS THE FIRST CALLER GETS LOST OR IS GONE WILE WE ARE SETTING UP THE SECOND CALL. LINK TIMER WAS 500 AND 600 SAME ISSUE.