C3350 X-cover2 sms alert tone only 5 sec.

I bought C3350 (Xcover 2) but the message tone only lasts 5 seconds. In previous modell B2710 (Xcover) tone last for 2-3 mins. and can play allmost whole mp3 song.
Now in this modell that option is cripled to misery 5 sec...

I'm interested in why this is so and whether this can be changed because the 5 sec. for messages is too short for me when working in loud areas.

Whether these option depends on which country and carier the phone is selling maybe?
Is that only a softwer issue?

I cant understand why Samsung will cripled a newer model of X-cover like that?
It's phone for outdoor moving not for sitting in quiet rooms.

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I took a quick look at the manual for the GT-C3350 and didn't see anything about increasing the duration of notification sounds.