I have 2 406v2 running v4.2 i am routing calls from site B to site A through ip trunks to use pri at site A. thats all working great , but i need to send caller id per exte at site B through site A. im not using scn just shortcode routing. my ext's are in the 500 range and no duplication of numbers. i have tried most NSxxxxxx or Nsixxxxxx not working what am i missing here?