UCCX and extension mobility

Version 1
    This document was generated from CDN thread

    Created by: GREG STINSON on 29-01-2010 04:57:07 PM
    I am using UCCX ( Unified Call center express) along with call manager 7.01.  I am using UCCX CTI protocol for CTI functions. Using API I can logon to an extension and perfrom ACD operations ( Logon , logoff, Set ready , set not ready , set work) successfully.
    When I use extension mobility to change device to a temparory profile I am uanlbe to logon to the device.  I am getting error
    "Invalid instrument". I n agent instrument I provided the changed number and ACD server is not recognizing the new number.
    Please help me.