I have asterisk 1.2.1 installed in my office. For outbound calling we have taken a IAX2 Trunk from Prescient World wide. I tried paging someone by dialing his pager number through my SIP Phone. After beep i have to press the number on which we want the person to call us back. When i am trying to press my numbers the paging company system is not able to recorgnise the numbers. I feel my asterisk box is not passing the key press digits rightly to the paging company system.