IP Faxing

Error code Error description Remedy
IP-FAX setting error
2001 Basic network settings have not been made. Check the IP address, subnet mask, and default gateway settings.
2002 The required SIP settings have not been made or an error has occurred in the main unit. Check the SIP settings.
2005 SIP 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
2010 Server information has not been set. Check the SIP server settings.
2011 Insufficient server handles. Check the SIP server settings.
Error in HGW automatic configuration
2015 Error during automatic acquisition of NGN gateway address. Check the network settings. Check the connection between devices.
2016 NGN gateway address setting error. Check the settings.
2017 Error 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.)
2018 NGN auto-configuration timeout. Check the network settings. Check the connection between devices.
Error at Cisco applied layer (prior voice connection)
2020 ANNOUNCE 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.)
2021 ANNOUNCE 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.)
2022 SESSION ESTABLISH NET ERROR
Session network establishment error
Check the machine of the fax destination, and the server.
Check the settings.
2023 Audio media negotiation ERROR
Error during SDP editing/parsing on voice connection.
Check the machine of the fax destination, and the server.
Check the settings.
2024 T.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)
2030 Sequence violation. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2031 Busy. 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)
2032 INVITE 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)
2033 There is no header. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2034 Header format error. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2035 There is no body. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2036 Body format error. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2037 Header was ignored. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2038 Body was ignored. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2039 Timeout 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.
2040 Timeout for 100rel messages sent. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2041 Pending requests are terminated. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2042 Network disconnection is detected. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2043 Network transmission failure is detected. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2044 Automatic rejection of INVITE. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2045 Discarding 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.
2046 The 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.
2047 Internal processing error. Check if the fax destination is correct.
Check the machine of the fax destination.
Check the network environment and settings.
2048 Network 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.
2050 Socket creation failure. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2051 DNS resolution failure. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2052 Not listening with the specified protocol. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2053 Address and port are in use. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2054 The socket does not exist. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2055 Reserved Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2056 Reserved Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2057 State error Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2058 Reserved Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2059 Internal error (invalid socket entry.) Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205A Reserved Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205B Reserved Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205C Reserved Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205D Internal error (pipe I/O). Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205E Incompatible TLS library version. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
205F TLS library loading error. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2061 Unknown error. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2062 Unsupported feature. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2063 Not implemented feature. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2064 Unauthorized processing. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2065 Processing. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2066 Time out Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2067 Resource is in use. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2068 Insufficient resources. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2069 Memory (pointer) is invalid. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206A Invalid memory size. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206B Invalid parameter. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206C The module has not been initialized. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206D The module has already been initialized. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
206E Inappropriate 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)
2102 Excessive or insufficient length. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2103 Out of the range. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2104 Memory allocation results. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2105 Callback function is not set. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2106 Not supported by this version. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2107 The target was not found. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2108 The target was found but the content is invalid. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2109 Time out Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2110 Invalid 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)
2121 IFP field size exceeded. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2122 ASN.1 revision is incorrect. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2123 An ASN.1 undefined type was specified. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2124 Insufficient buffer for decoding. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2125 Insufficient buffer for decoding. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2126 The ASN.1 format is incorrect. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2127 UDPTL field size exceeded. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2128 Insufficient reserved space. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2129 Insufficient UDPTL field data. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2130 Missing UDPTL packets exceeded the recoverable range. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2131 The sequence number of the UDPTL packet is out of date. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2132 An undefined result recovery method was specified. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2133 Type mismatch in t30 message. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2134 TPKT receive buffer is invalid. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2135 TPKT receive buffer length is invalid. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2136 TPKT version is invalid. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2137 TPKT field size exceeded. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2138 TPKT format is incorrect. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2139 Unsupported ASN.1 format. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2140 The 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)
2141 The 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)
2142 T.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)
2161 Insufficient free sessions in the voice engine. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2162 SDP negotiation failed. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2170 Error in the Manager module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2171 Error in the Clinet module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2172 Error in the SIP Call module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2173 Error in the SIP Cisco module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2174 Error in the SIP Session module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2175 Error in the SIP keeper module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2176 Error in the SIP Sdp module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2177 Error in the SIP Server module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2178 Error in the SIP Listen module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
2179 Error in the SIP Reg module. Internal error
Check the conditions under which the error occurs (settings/destination/environment)
217A Error 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
2300 Redirect response was received from the SIP server. (Received SIP response 300 Multiple Choices.) Check the network environment or SIP server settings.
2301 Redirect response was received from the SIP server. (Received SIP response 301 Moved Permanently.) Check the network environment or SIP server settings.
2302 Redirect response was received from the SIP server. (SIP response 302 Moved Temporarily was received.) Check the network environment or SIP server settings.
2305 Communication 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.
2380 Redirect response was received from the SIP server. (Received SIP response 380 Alternative Service.) Check the network environment or SIP server settings.
2400 There was a response from the SIP server indicating that the request was invalid. (Received SIP response 400 Bad Request.) Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2401 There was a response from the SIP server that authentication failed. (Received SIP response 401 Unauthorized.) Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2402 Received a response from the SIP server saying that the request was rejected. (Received SIP response 402 Payment  Required.) Check the network environment or SIP server settings.
(Sometimes the problem is solved by sending the fax again after a while)
2403 Received a response from the SIP server saying 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)
2404 The 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)
2405 Received a response from the SIP server saying that access was not allowed. (Received SIP response 405 Method Not Allowed.) Check the network environment or SIP server settings.
2406 Received a response from the SIP server saying that the request was rejected. (SIP response 406 Not Acceptable was received.) Check the network environment or SIP server settings.
2407 There was a response from the SIP server that 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

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.
2410 SIP server responded that the specified destination could not be found. (Received SIP response 410Gone.) Check if the fax destination is correct.
Check the network environment or SIP server settings.
2413 There was a response from the SIP server that the data size to send 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)
2414 The 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.
2420 Received a response from the SIP server saying that the request was rejected. (SIP response 420 Bad Extension was received.) Check the network environment or SIP server settings.
2421 Received a response from the SIP server saying that the request was rejected. (SIP response 421 Extension Required was received.) Check the network environment or SIP server settings.
2422

Received a response from the SIP server saying that the request was rejected. (SIP response 422 Session Interval Too Small was received.)

Check the network environment or SIP server settings.
2423 Received a response from the SIP server saying that the request was rejected. (Received SIP response 423Interval Too Brief.) Check the network environment or SIP server settings.
2480 The 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)
2481 Received a response from the SIP server saying that the request was rejected. (SIP response 481 Call/Transaction Does not Exist was received.) Check the network environment or SIP server settings.
2482 There was a response from the SIP server that a loop was detected. (Received SIP response 482Loop Detected.) Check the network environment or SIP server settings.
2483 The 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.
2484 The SIP server responded that the URI was incomplete. (Received SIP response 484Address Incomplete.) Check if the fax destination is correct.
Check the network environment or SIP server settings.
2485 The 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.
2486 The SIP server responded that the recipient was unable to communicate. (Received SIP response 486 Busy Here.) 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)
2487 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.
2488 Received a response from the SIP server saying that the request was rejected. (Received SIP response 488 Not Acceptable Here.) 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.
2491 Received a response from the SIP server saying that the request was rejected. (Received SIP response 491 Request Pending.) Check if the fax destination is correct.
Check the network environment or SIP server settings.
2493 Received a response from the SIP server saying 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.
2502 SIP server responded that communication with the upstream server had failed. (Received SIP response 502 Bad Gateway.) 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)

2504 SIP server responded that communication with the upstream server had failed. (Received SIP response 504 Server Time-out.) 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.
2513 There was a response from the SIP server that the data size to send 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. (Received SIP response 600 Busy Everywhere.)

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)
2603 The 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)
2604 The SIP server responded that the specified destination did not exist. (Received SIP response 604 Does Not Exist Anywhere.) Check the network environment or SIP server settings.
2606 Received a response from the SIP server saying 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)
2930 Disconnected 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)
2931 Canceled 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)
2933 Session 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)
2934 Session 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)