Short translation needed. Msg when calling russian phone

I get this message when calling a russian cell phone (I have cut out must of the number).

http://home.terminal.dk/aaa.mp (size = 80k byte)

What is the speaker saying ? I still have difficulties picking up enough of the sounds to convert it back into letters to lookup up.

I am pretty sure the meaning is, that the phone can't be reached, and that I can leave a message after the beep. But what is being said ?

Corrected URL
http://home.terminal.dk/aaa.mp3 (size = 80k byte)

This is a link to the first file, so both works. Just in case your browser will not recognize .mp extension.

... с почтовым ящиком абонента 903 ...05. Оставьте ваше сообщение после звукового сигнала.

... with a mailbox of the subscriber 903 ...05. Leave your message after the beep.