August 2007
Intermediate to advanced
608 pages
20h 33m
English
TryExec() — Tries to execute an Asterisk application
TryExec(app(args))Attempts to run the specified Asterisk application.
This application is very similar to the Exec() application, except that it always
returns normally, whereas the Exec() application will act as if the
underlying application was natively called, including exit status.
This application can be used to catch a condition that would normally
cause the underlying application to exit abnormally.
exten => 123,1,TryExec(VMAuthenticate(@default))