Merge commit '5c1c40d28cb4c0dc5efbdb6e9e695685044606e9' * commit '5c1c40d28cb4c0dc5efbdb6e9e695685044606e9': add feedback test with gsm7bit special case characters
Merge commit '5c1c40d28cb4c0dc5efbdb6e9e695685044606e9' * commit '5c1c40d28cb4c0dc5efbdb6e9e695685044606e9': add feedback test with gsm7bit special case characters