Hi,
Get Call Contact Info
Use the Get Call Contact step to access call-specific information and to store values in specified variables
Called Number : Variable that stores the number called by the calling party.
Original Called Number : Number called from the perspective of the called party.
Did you try using Original Called number field.
For more info refer the Editor Step Reference guide
http://www.cisco.com/univercd/cc/td/doc/product/voice/sw_ap_to/apps_3_5/english/admn_app/step.pdf - Pg.No: 3-3
Regards
Yogi