IF you have less then 500 users you should go with CME

How many users do you have total?  CUCM supports VM which is a lot better them MCS servers

Srini, So Just to make it clear if you have an existing SRST site that you are converting to E-SRST then you keep the dial peers correct?  Do you need remove any CME config including core lists and ephone and ephone dn config? Also why E-SRST does ...