Basically this error(Unable to create ActiveX Control. cmx phone Control) is occured when we unstall Microsoft Dynamicx Ax 4.0 and AX 2009 Still in System
and when we open AX this Error(Unable to create ActiveX Control. cmx phone Control) occure .
Solution: For Remove this error just copy smmphone.ocx from other System where AX 4.0 installed
and put this on same path as-Installed Drive\Program Files\Microsoft Dynamics AX\40\Client
thats all.