Version: 1.7.0
Date:2008/11/17
Changes:
  1. The IPCentrex main user interface port was changed to 10087 (original port is 10097)
     and SIPIVR is using 10097 now (original is 10087).
New Features:
  1. Upgraded the base SIPIVR version to release 2.5.0
  2. Added a provisioning interface that external system can use it to create or manage the service. 
  3. Support Diversion header (draft-levy-sip-diversion-08.txt) for AA, VMS, CRBT and Announcement service
  4. Support company wide dialing plan for auto attendant
  5. Support subscriber based time zone
  6. Improved the procedure for service manage.