I have problem with ReceiveFAX - if my asterisk works for 3-4 days, there is problem with ReceiveFAX - call is answered, there is a fax negotiation tone, but the fax isnt received. In log there is information “res_fax_digium.c: Huh? Failed to open FAX session ‘XXX’”. After asterisk restart fax works fine for next 3-4 days.
What could be a problem?