Now both of our Ricoh Fax machines can register with the pbxnsip server (we had to use blank password), but when I try to send / receive a fax between them (not going through any trunk), it does not work. In the log, I can clearly see that both devices are negotiating the connection, switching to t38 and then the sending machine sends an ACK, but the receiving machine never responds. Sending machine retry the ACK, still receives no answer and then drop the connection. Any advice?
Here's a copy of the log file:
[7] 2010/05/31 14:22:38: SIP Tx udp:192.168.7.10:5060:
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.7.10;branch=z9hG4bKB'i8lXA_3T1Vn
From: "Fax PBrunet23" <sip:98@pbx.company.com>;tag=QQL7De5Q+L
To: "Fax PBrunet24" <sip:99@pbx.company.com>;tag=42226
Call-ID: 497f14cf@pbx
CSeq: 1 INVITE
Content-Length: 0
[7] 2010/05/31 14:22:38: SIP Rx udp:10.0.0.23:65378:
ACK sip:99@10.0.0.66;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.0.0.23;branch=z9hG4bK!1r!Cm+YdarSp
Max-Forwards: 70
From: <sip:99@10.0.0.23;user=phone>;tag=p05H4*cJDI
To: <sip:98@10.0.0.66;user=phone>;tag=4fc4fc1483
Call-ID: 20100531142239-T38-C-RytBI@10.0.0.23
CSeq: 1 ACK
Content-Length: 0
[7] 2010/05/31 14:22:39: SIP Rx udp:10.0.0.23:65378:
ACK sip:99@10.0.0.66;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.0.0.23;branch=z9hG4bKWkkancr4UpW5G
Max-Forwards: 70
From: <sip:99@10.0.0.23;user=phone>;tag=p05H4*cJDI
To: <sip:98@10.0.0.66;user=phone>;tag=4fc4fc1483
Call-ID: 20100531142239-T38-C-RytBI@10.0.0.23
CSeq: 1 ACK
Content-Length: 0
[5] 2010/05/31 14:23:10: Did not receive ACK, disconnecting call 497f14cf@pbx
Thanks!