Check Point  | Troubleshooting Procedures  | |
1  | LAN cable connected?  | Check the LAN cable connection.  | 
2  | Specified IP address/hostname correct?  | Check the IP address/host name.  | 
3  | Firewall/NAT installed?  | The firewall cannot be breached. Send by another method (Fax, Internet Fax)  | 
4  | Transmission sent manually?  | Manual sending not supported.  | 
5  | IP address of local machine registered?  | Register the IP address.  | 
6  | Remote terminal port number setting other than 1720 (when using H.323) or 5060 (when using SIP)?  | Send by specifying the port number.  | 
7  | Specified port number correct?  | Confirm the port number of the remote fax.  | 
8  | DNS server registered when host name specified?  | Contact the network administrator.  | 
9  | Remote fax a T.38 terminal?  | Check whether the remote fax is a T38 terminal.  | 
10  | Remote fax switched off or busy?  | Check that the remote fax is ON.  | 
11  | Network bandwidth too narrow?  | Request the network administrator to increase the bandwidth.  | 
Raise the delay level. (IPFAX SW 01 Bit 0 to 3)  | ||
IP-Fax bandwidth is the same as the DCS speed. Set IP-Fax SW00 Bit 6 to 1.  | ||
12  | Remote fax cancelled transmission?  | Check whether the remote fax cancelled the transmission.  |