


8.4. Error Handling
The following diagrams illustrate how errors are handled by the IP Mail demo.
Figure 6. Error Handling-GCEV_DISCONNECTED
Figure 7. Error Handling-GCEV_TASKFAIL
8.4.1. Errors from IP
The error might occur in different phases:
- If the called function returns a <0 , first process the error by calling: gc_ErrorValue( ) and gc_ResultMsg( ), and then end the call or exit the application.
- If the function was called successfully, but a GCEV_TASKFAIL event is received later, indicating that the function failed, the application will be terminated.
8.4.2. Errors from Voice Resources
- The main error which could be received while calling the R4 function toward the Voice Resources is represented by the TDX_ERROR event.
- The IP Mail demo drops the call after receiving this error and the state transitions to IPTMAIL_DISCONNECTED.





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