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![Moises Silva](https://secure.gravatar.com/avatar/2f60b06fecb402a2cb4a59bceeb28d98.jpg?s=96&d=mm)
Moises Silva committed 8bf6312a0e6
freetdm: set proper flags when a given layer (ISUP, MTP3 etc) is started and verify such flags on shutdown to avoid segfault when shutting down a layer that was never started - fix issue #741
freetdm: set proper flags when a given layer (ISUP, MTP3 etc) is started and verify such flags on shutdown to avoid segfault when shutting down a layer that was never started - fix issue #741