3.Troubleshooting
44
IP-Fax Troubleshooting
IP-Fax Transmission
Cannot send by IP Address/Host Name
Check Point Action
1 LAN cable connected? Check the LAN cable connection.
2 Specified IP address/host name correct? Check the IP address/host name.
3 Firewall/NAT is installed? Cannot breach the firewall. Send by using
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 switched 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.
Cannot Send via VoIP Gateway.
Check Point Action
1 LAN cable connected? Check the LAN cable connection.
2 VoIP Gateway T.38 standard? Contact the network administrator.
3 VoIP Gateway installed correctly? Contact the network administrator.
4 VoIP Gateway power switched on? Contact the network administrator.
5 Is the IP address/host name of the specified
Gateway correct?
Check the IP address/host name.
6 Number of the specified fax correct? Check the remote fax number.
7 Firewall/NAT is installed? Cannot breach the firewall. Send by using another
method (Fax, Internet Fax)
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