IP Faxing

Error codeError descriptionRemedy
IP-FAX setting error
2001Basic network settings have not been made.Check the IP address, subnet mask, and default gateway settings.
2002The required SIP settings have not been made or an error has occurred in the main unit.Check the SIP settings.
2005SIP URI of the sender or the recipient is wrong.Check the recipient's SIP URI (registered in the Contacts list).
Check the sender's SIP URI.
Error in registering the registrar server/proxy server
2010Server information has not been set.Check the SIP server settings.
2011Insufficient server handles.Check the SIP server settings.
Error in HGW automatic configuration
2015Error during automatic acquisition of NGN gateway address.Check the network settings. Check the connection between devices.
2016NGN gateway address setting error.Check the settings.
2017Error during automatic acquisition of NGN line information.Check the network settings. Check the connection between devices.
(Check the HGW to see if the extension registration is already full.)
2018NGN auto-configuration timeout.Check the network settings. Check the connection between devices.
Error at Cisco applied layer (prior voice connection)
2020ANNOUNCE FAXTONE TIMEDOUT
CED could not be detected after voice connection at the time of the call. Re-INVTE could not be sent because CNG could not be detected after voice connection during incoming call.
Check the machine of the fax destination.
(The recipient’s machine may be an IP phone.)
2021ANNOUNCE REINVITE TIMEDOUT
Re-INVTE could not be detected after voice connection at the time of the call.
Check the machine of the fax destination.
(The recipient’s machine is a fax machine, but it is connected to a SIP-TA, etc. and did not send out a Re-INVTE.)
2022SESSION ESTABLISH NET ERROR
Session network establishment error
Check the machine of the fax destination, and the server.
Check the settings.
2023Audio media negotiation ERROR
Error during SDP editing/parsing on voice connection.
Check the machine of the fax destination, and the server.
Check the settings.
2024T.38 media negotiation ERROR
Error during SDP editing/parsing on T.38 media connection.
Check the machine of the fax destination, and the server.
Check the settings.
Error related to SIP (SIP_ANNOUNCE_RESULT)
2030Sequence violation.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2031Busy.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
(Sometimes the problem is solved by sending the fax again after a while)
2032INVITE request timeout.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
(Sometimes the problem is solved by sending the fax again after a while)
2033There is no header.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2034Header format error.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2035There is no body.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2036Body format error.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2037Header was ignored.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2038Body was ignored.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2039Timeout for requests other than INVITE.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2040Timeout for 100rel messages sent.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2041Pending requests are terminated.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2042Network disconnection is detected.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2043Network transmission failure is detected.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2044Automatic rejection of INVITE.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2045Discarding packets is started because the packet reception limit has been exceeded.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2046The state of exceeding the number of packet reception limits is over.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2047Internal processing error.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2048Network Error.Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
Internal module processing error.
2050Socket creation failure.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2051DNS resolution failure.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2052Not listening with the specified protocol.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2053Address and port are in use.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2054The socket does not exist.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2055ReservedInternal error
Check the conditions under which the error occurs (settings/destination/environment)
2056ReservedInternal error
Check the conditions under which the error occurs (settings/destination/environment)
2057State errorInternal error
Check the conditions under which the error occurs (settings/destination/environment)
2058ReservedInternal error
Check the conditions under which the error occurs (settings/destination/environment)
2059Internal error (invalid socket entry.)Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205AReservedInternal error
Check the conditions under which the error occurs (settings/destination/environment)
205BReservedInternal error
Check the conditions under which the error occurs (settings/destination/environment)
205CReservedInternal error
Check the conditions under which the error occurs (settings/destination/environment)
205DInternal error (pipe I/O).Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205EIncompatible TLS library version.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205FTLS library loading error.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2061Unknown error.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2062Unsupported feature.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2063Not implemented feature.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2064Unauthorized processing.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2065Processing.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2066Time outInternal error
Check the conditions under which the error occurs (settings/destination/environment)
2067Resource is in use.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2068Insufficient resources.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2069Memory (pointer) is invalid.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206AInvalid memory size.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206BInvalid parameter.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206CThe module has not been initialized.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206DThe module has already been initialized.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206EInappropriate operation was performed for the current condition.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2099[Internal error]
The network settings have been changed.
Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2101[General error code]
Invalid argument.
Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2102Excessive or insufficient length.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2103Out of the range.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2104Memory allocation results.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2105Callback function is not set.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2106Not supported by this version.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2107The target was not found.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2108The target was found but the content is invalid.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2109Time outInternal error
Check the conditions under which the error occurs (settings/destination/environment)
2110Invalid state.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2120[T.38 related error]
127 octet length limit exceeded.
Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2121IFP field size exceeded.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2122ASN.1 revision is incorrect.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2123An ASN.1 undefined type was specified.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2124Insufficient buffer for decoding.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2125Insufficient buffer for decoding.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2126The ASN.1 format is incorrect.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2127UDPTL field size exceeded.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2128Insufficient reserved space.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2129Insufficient UDPTL field data.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2130Missing UDPTL packets exceeded the recoverable range.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2131The sequence number of the UDPTL packet is out of date.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2132An undefined result recovery method was specified.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2133Type mismatch in t30 message.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2134TPKT receive buffer is invalid.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2135TPKT receive buffer length is invalid.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2136TPKT version is invalid.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2137TPKT field size exceeded.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2138TPKT format is incorrect.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2139Unsupported ASN.1 format.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2140The sequence number of the UDPTL packet is the same as the previous one.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2141The sequence number is incorrect because RTP packets are parsed as UDPTL packets.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2142T.38 session type is invalid.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2150[Fax tone related error]
Incorrect sound source format.
Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2151[Transmission related error]
Transmitted packet oversize error.
Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2160[CISCO Layer related error]
Media not supported by CISCO layers.
Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2161Insufficient free sessions in the voice engine.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2162SDP negotiation failed.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2170Error in the Manager module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2171Error in the Clinet module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2172Error in the SIP Call module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2173Error in the SIP Cisco module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2174Error in the SIP Session module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2175Error in the SIP keeper module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2176Error in the SIP Sdp module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2177Error in the SIP Server module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2178Error in the SIP Listen module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2179Error in the SIP Reg module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
217AError in the SIP Hgw module.Internal error
Check the conditions under which the error occurs (settings/destination/environment)
Error codes associated with RFC-compliant status codes
2300The SIP server responded to the redirect. (SIP response 300 Multiple Choices was received.)Check the network environment or SIP server settings.
2301The SIP server responded to the redirect. (SIP response 301 Moved Permanently was received.)Check the network environment or SIP server settings.
2302The SIP server responded to the redirect. (SIP response 302 Moved Temporarily was received.)Check the network environment or SIP server settings.
2305Communication with the recipient failed and access via proxy was requested. (SIP response 305 Use Proxy was received.)Check the network environment or SIP server settings.
2380The SIP server responded to the redirect. (SIP response 380 Alternative Service was received.)Check the network environment or SIP server settings.
2400The SIP server responded that the request was invalid. (SIP response 400 Bad Request was received.)Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2401The SIP server responded that authentication failed. (SIP response 401 Unauthorized was received.)Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2402The SIP server responded that the request was rejected. (SIP response 402 Payment  Required was received.)Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2403The SIP server responded that the request was rejected. (SIP response 403 Forbidden was received.)Check the network environment or SIP server settings.
Check the incoming call rejection setting.
(Sometimes the problem is solved by sending the fax again after a while)
2404The SIP server responded that it could not find the specified destination. (SIP response 404 Not Found was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2405The SIP server responded that access was not allowed. (SIP response 405 Method Not Allowed was received.)Check the network environment or SIP server settings.
2406The SIP server responded that the request was rejected. (SIP response 406 Not Acceptable was received.)Check the network environment or SIP server settings.
2407The SIP server responded that the proxy authentication failed. (SIP response 407 Proxy Authentication Required was received.)Check if the authentication settings of the main unit and the SIP server match.
2408

The SIP server responded that the request timed out. (SIP response 408 Request Timeout was received.)

Or, the SIP server or the recipient’s IP fax machine does not exist on the network. (No response)

Check if the fax destination is correct.
Check the network environment or SIP server settings.
2410The SIP server responded that it could not find the specified destination. (SIP response 410 Gone was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2413The SIP server responded that the size of the data to be sent was too large. (SIP response 413 Request Entity Too Large was received.)Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2414The SIP server responded that the URI was too long. (SIP response 414 Request-URI Too Long was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2415

The SIP server responded that the request contained an unsupported media type.

(SIP response 415 Unsupported Media Type was received.)

Check the network environment or SIP server settings.
2416

The SIP server responded that the URI was a scheme not supported by the server.

(SIP response 416 Unsupported URI Scheme was received.)

Check if the fax destination is correct.
Check the network environment or SIP server settings.
2420The SIP server responded that the request was rejected. (SIP response 420 Bad Extension was received.)Check the network environment or SIP server settings.
2421The SIP server responded that the request was rejected. (SIP response 421 Extension Required was received.)Check the network environment or SIP server settings.
2422

The SIP server responded that the request was rejected. (SIP response 422 Session Interval Too Small was received.)

Check the network environment or SIP server settings.
2423The SIP server responded that the request was rejected. (SIP response 423 Interval Too Brief was received.)Check the network environment or SIP server settings.
2480The SIP server responded that the recipient was unable to communicate. (SIP response 480 Temporarily Unavailable was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2481The SIP server responded that the request was rejected. (SIP response 481 Call/Transaction Does not Exist was received.)Check the network environment or SIP server settings.
2482The SIP server responded that it had detected a loop. (SIP response 482 Loop Detected was received.)Check the network environment or SIP server settings.
2483The SIP server responded that there were too many hops. (SIP response 483 Too Many Hops was received.)Check the network environment or SIP server settings.
2484The SIP server responded that the URI was incomplete. (SIP response 484 Address Incomplete was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2485The SIP server responded that the URI was unclear. (SIP response 485 Ambiguous was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2486The SIP server responded that the recipient was unable to communicate. (SIP response 486 Busy Here was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
*If your machine can respond, the memory or the file may be full, or the recipient may be on a call.
(Sometimes the problem is solved by sending the fax again after a while)
2487The SIP server responded that the request was terminated. (SIP response 487 Request Terminated was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2488The SIP server responded that the request was rejected. (SIP response 488 Not Acceptable Here was received.)Check if the fax destination is correct.
Check if the SIP settings and media (T.38) settings of the main unit and SIP server match.
* When [Send Settings] → [Send with G3 in case of IP Fax (NGN) transmission error] is enabled, the fax is sent using an analog G3 fax.
2491The SIP server responded that the request was rejected. (SIP response 491 Request Pending was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2493The SIP server responded that the request was rejected. (SIP response 493 Undecipherable was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
2500

The SIP server responded that it encountered an unanticipated condition that prevented it from executing the request.

(SIP response 500 Server Internal Error was received.)

Check the SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2501

The SIP server responded that the server did not support the functionality required to execute the request.

(SIP response 501 Not Implemented was received.)

Check the SIP server settings.
2502The SIP server responded that communication with the upstream server failed. (SIP response 502 Bad Gateway was received.)Check the SIP server settings.
2503

The SIP server responded that the server is currently unable to handle the request.

(SIP response 503 Service Unavailable was received.)

Check the SIP server settings.

(Sometimes the problem is solved by sending the fax again after a while)

2504The SIP server responded that communication with the upstream server failed. (SIP response 504 Server Time-out was received.)Check the SIP server settings.
2505

The SIP server responded that the server did not support the functionality required to execute the request.

(SIP response 505 SIP Version not supported was received.)

Check the SIP server settings.
2513The SIP server responded that the size of the data to be sent was too large. (SIP response 513 Message Too Large was received.)Check the SIP server settings.
2600

The SIP server responded that the recipient was unable to communicate. (SIP response 600 Busy Everywhere was received.)

Check if the fax destination is correct.
Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2603The SIP server responded that the recipient was unable to communicate. (SIP response 603 Decline was received.)Check if the fax destination is correct.
Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2604The SIP server responded that the specified destination did not exist. (SIP response 604 Does Not Exist Anywhere was received.)Check the network environment or SIP server settings.
2606The SIP server responded that the request was rejected. (SIP response 606 Not Acceptable was received.)Check the network environment or SIP server settings.
Disconnection during communication (disconnection cause other than existing T.30 errors)
2930Disconnected during communication.
SIP method "Bye" was received during the fax communication.
Check the machine of the fax destination.
(Sometimes the problem is solved by sending the fax again after a while)
2931Canceled during communication.
SIP method "Cancel" was received during the fax communication.
Check the machine of the fax destination.
(Sometimes the problem is solved by sending the fax again after a while)
2932(No response from the recipient)
Timeout after receiving "180 Ringing" with no response from the recipient.
Check the machine of the fax destination.
(The recipient’s machine may be an IP phone.)
(Sometimes the problem is solved by sending the fax again after a while)
2933Session connection timeout.
After connecting with "200 OK" (success), UDP/TCP connection was not established. (mainly for TCP. SYN/ACK reception is not completed.)
Check the machine of the fax destination.
(Sometimes the problem is solved by sending the fax again after a while)
2934Session disconnected.
Session disconnection (FIN, RST for TCP) was detected during the communication.
Check the machine of the fax destination.
(Sometimes the problem is solved by sending the fax again after a while)