Hi,
 
I solved my problem thanks to your postings 
and the information I found on HylaFAX site:
 
http://www.hylafax.org/Modems/multitech-2834.html
I stored a new value of 35 in S38 register of my modem:
               AT&F
                ATS38=35
                AT&F9
                AT&W0
Now I'm testing it and so far it seem to work fine.
Thank you very much to all for the help!
Milen
=================================================
>Hi, 
>
 >I have problems with a multitech modem MT2834ZDXb  in receive-only  configuration 
>It fails to receive faxes with the one of the following errors: 
 >
>1. T.30 T2 timeout, expected page not received 
>2. COMREC error 
>3. Missing EOL after 5 seconds (section 3.2/T.4) 
 >
>Is there any known poblems with this type of modems? 
>Do I need to change any parameters in modem config file? 
 >
>Thank you for your time and help! 
>Best regards: 
>Milen