[cisco-voip] Problem connecting FAX on FXS (VIC2-2FXS)

[Anthony Kouloglou]

Dear All,
in a call manager implementation (4.1) we have used a VIC2-2FXS card on 
a 2811 cisco router. I have configured the 2 voice ports to receive fax 
and plugged 2 FAX (a brother and a canon) on the ports. When i dial the 
number of the fax from the outside, i hear a dialtone from the router 
and after 2-3 seconds i hear also the fax reply!!
Does it has to do with ISDN Overlap-receiving?
I will submit the basic config of the router (it is very simple and it 
has been working on many other implementaions):

interface BRI0/2/0
 no ip address
 isdn switch-type basic-net3
 isdn overlap-receiving
 isdn incoming-voice voice
 
!
interface BRI0/2/1
 no ip address
 isdn switch-type basic-net3
 isdn overlap-receiving
 isdn incoming-voice voice
 
.....................................
voice-port 0/2/0
 translation-profile incoming TP01
 compand-type a-law
 bearer-cap Speech
!
voice-port 0/2/1
 translation-profile incoming TP01
 compand-type a-law
 bearer-cap Speech
!
voice-port 0/3/0
 signal groundStart
!
voice-port 0/3/1
 signal groundStart
!
!
!
!
!
dial-peer voice 1 pots
 incoming called-number .
 no digit-strip
 direct-inward-dial
!
dial-peer voice 366 pots
 description fax_1
 destination-pattern <Number ommited>
 port 0/3/0
!
dial-peer voice 367 pots
 description fax_2
 destination-pattern <Number ommited>
 port 0/3/1
!
!
!
!