API Documentation > SOAP API > InterFAX High Availability SOAP API > Appendix C: InterFAX Status Codes

Appendix C: InterFAX Status Codes

Color code legend

Color & Meaning Comment
In process The fax is in the process of being prepared, sent, or resent. This is a temporary status; it may change. Query again later to determine whether the fax has completed.
Success The fax has been sent successfully. This is a permanent status; it will not change .
Failure The fax has failed, even after multiple attempts (if applicable). This is a permanent status; it will not change. You may wish to resend the fax.

Status Codes

Value Description Comments
-11 Pre-processing The system has received your message and is preparing a fax. This is a temporary status. Query again later to get a final status.
-1 Pre-processing The system has received your message and is preparing a fax. This is a temporary status. Query again later to get a final status.
-2 Ready The fax has been prepared and is awaiting its turn in the outbound queue. This is a temporary status. Query again later to get a final status.
-3 Sending (or pending retry) The fax is in the process of being sent or awaiting its next attempt. This is a temporary status. Query again later to get a final status.
-22 Out of credit, awaiting topup The fax is being held until credit becomes available in the account. To release the fax, login to your InterFAX account, click Purchase -> Prepaid Cards, select your required prepaid package, and proceed to checkout. Temporary status. The status may change on two conditions: a.) additional credits are bought within the account, or b.) 24 hours have passed without additional credits being bought, in which case the status will change to 205000. This is a temporary status and may subsequently change if credits have been bought.
Any other negative number Fax is being handled The system has received your message and is preparing a fax. This is a temporary status. Query again later to get a final status.
0 OK (Fax successfully sent) Your fax has been sent successfully. Note that this confirmation is provided by the receiving fax machine, indicating it confirms that it has received all pages successfully.
1 Internal error Call disconnected after several minutes without getting a page break or confirmation from the sender/receiver.
256 Internal error If you come across this error, please contact support for clarification.
263 Busy The receiving line is in use.
403 Fax manually canceled.
3072 Telephony error See *
3080 Telephony error See *
3211 Fax machine incompatibility See **
3220 Fax machine incompatibility See **
3223 An unexpected disconnect command was sent
3224 The remote fax machine failed to respond
3225 Fax machine incompatibility See **
3230 A disconnect message was received while attempting to negotiate transmission
3231 Fax machine incompatibility See **
3233 Fax machine incompatibility See **
3264 Fax machine incompatibility See **
3267 Fax machine incompatibility See **
3268 Transmission error (after page break)
3269 Fax machine incompatibility**
3300 Telephony error See *
3510 Telephony error See *
3830 Telephony error See *
3912 Phone number not operational No answer tone detected. The program is unable to classify incoming signals (i.e., there was no busy condition, no ring, no audio energy was detected.
3931 Busy The receiving line is in use.
3932 Phone number not operational Fast busy. The receiving line might be out of order or disconnected.
3933 Busy Unassigned number or telephony error.
3935 No answer (might be out of paper)
3936 Human voice answer
3937 Ring busy A ringing condition was detected followed by a busy signal.
3938 Phone number not operational
6001 Phone number not operational Unassigned Number?
6002 No route available May occur in developer accounts and free evaluation accounts when faxing to expensive locations. Contact support for assistance.
6003 Telephony error See *
6004 Telephony error See *
6016 Telephony error See *
6017 Busy The receiving line is in use.
6018 No answer (Might be out of paper)
6019 Telephony error See *
6021 Call rejected
6022 Number changed
6027 Phone number not operational Invalid number format?
6028 Phone number not operational Unassigned number
6029 Call rejected
6031 Telephony error See *
6034 Telephony error See *
6038 Telephony error See *
6041 Telephony error See *
6042 Telephony error See *
6043 Telephony error See *
6044 Telephony error See *
6047 Telephony error See *
6050 Telephony error See *
6054 Telephony error See *
6057 Telephony error See *
6058 Telephony error See *
6063 Telephony error See *
6065 Telephony error See *
6069 Telephony error See *
6079 Telephony error See *
6088 Incompatible destination
6095 Incompatible destination
6097 Incompatible destination
6099 Incompatible destination
6100 Incompatible destination
6102 Telephony error See *
6111 Telephony error See *
6127 Telephony error See *
7004 Telephony error See *
7012 Telephony error See *
7013 Telephony error See *
7200 Unspecified fax failure
8010 The remote fax machine hung up before receiving fax
8021 No answer Might be out of paper
8025 Busy The receiving line is in use.
204000 Rendering error The system could not turn your documents into a fax. Make sure your documents contain no macros, that they are not password-protected, and that they are in our list of supported file types.
204001 Rendering error The system could not turn your documents into a fax. Make sure your documents contain no macros, that they are not password-protected, and that they are in our list of supported file types.
205000 Quota exceeded (Prepaid card depleted) You need to purchase more faxing credits to send additional faxes. Login to your InterFAX account, click Purchase -> Prepaid Cards, select your required prepaid package, and proceed to checkout.
205001 Internal System error (FindRoute) Something unexpected has happened. Please contact support.
206001 Internal System Error (LocalSender) Something unexpected has happened. Please contact support.

* “Telephony Error” can have a variety of meanings and sources, which are mostly related to the setup of a call. A failure on “telephony error” does not necessarily mean that your fax will never be successfully transmitted. InterFAX records your initial error message and will attempt to route your fax through different servers on different phone lines, which may make subsequent attempts successful.

** “Fax Machine Incompatibility” means that the communication between InterFAX and the recipient did not succeed even though the call was answered by a fax machine. It is possible that some pages or partial pages did go through successfully. Please check for the ‘Pages’ indicator in the confirmation message that was sent to you.