c8fa26c0_Internal_Error_Codes___DocWiki__Descriptor
[Code] 33 [Explanation] A call handoff attempt between applications failed because the applications were incompatible. Tcl IVR 1.0 applications are incompatible with Tcl IVR 2.0 or VXML applications. [Category] 180 [Descriptor] 
Incompatible apps for handoff
Cisco IOS Voice Troubleshooting and Monitoring -- Cisco VoIP Internal Error Codes - DocWiki
Descriptor