
Note that the user added to the group still gets its own copy of the fax, and should be routed off of the
faxservertoeitheranemailaddressortoaMicrosoftFaxclient.
2.6OutboundFaxes
2.6.1ErrorandRetries
When NET SatisFAXtion tries to send a fax and gets an error, one of two things happen. Either the error is
retryable and the fax moves to the Scheduled Queue to wait to retry, or the error is nonretryable and gets sent
backtothesender.
Retryable errors are those errors that are generally intermittent and another attempt at faxing may go through.
Forexample,“busy”and“noanswer”errorsareretryable.
Nonretryable errors are permanent failures when trying to send the fax again is not going to succeed and it is
not an efficient use of phone or processing time attempting the fax again. For example, “no dial tone” and
“numbernotinservice”errorsarenotretryable.
The Microsoft Fax client manages its own retries. None of the serverside retry settings apply to faxes sent by
MicrosoftFax.
2.6.1.1NumberofRetries
By default, the fax server will retry a fax three times (four attempts total). This can be configured in the
Change Server Settings utility, Start ⇨ Programs ⇨ NET SatisFAXtion ⇨ Change Server Settings. Click
theFaxHardwareSettingsbuttonandchangetotheGeneraltab.
2.6.1.2IntelligentRetry
“Intelligent Retry” is a method that resumes a partially successful fax from where it left off. If a fax fails
in the middle, on a retry the first page will be resent (usually the cover sheet), and then the remaining
pageswillbesent.Thispreventsresendingofsuccessfulpagesandreducesthecalltimeoftheretries.
For example, a 10page fax is sent, and it fails while sending page 7. On a retry, the fax server will send
page 1, then pages 7 through 10. If it fails again on page 9, the fax server will send page 1, then pages
9through10.
2.6.1.3RetryInterval
“Busy” errors are retried after 60 seconds. All other retryable errors are retried after 15 seconds. These
values can be customized with the busy_call_send_retry_seconds and send_retry_seconds respectively,
see4.2.1.1ICANFaxGlobal.
2.6.1.4WhichErrorsareRetries
In general, all normal “call progress” errors are retryable, such as “busy” and “no answer.” Also all
transmissionerrorsareretryable.
The exact error codes that are retried are driverspecific. See the appropriate section in 4.1 Error Code
Referenceforalistofallerrorcodesandwhethertheyareretryable.
2.6.1.5CustomizingRetryableErrors
In some environments, certain errors are actually retryable when normally they are not, and vice versa.
It is possible to reclassify particular error codes as retryable with also_retry_errors, and others as
nonretryable with dont_retry_errors. See 4.2.1.1 ICANFax Global and appropriate section in 4.1 Error
CodeReferenceformoredetail.
2.6.2DialingtheSameNumberMoreThanOnce
By default the fax server will only send one fax to any given number at the same time. Any
additional faxes to that number will queue up in the Scheduled queue until the first fax completes.
Thisisbecausemostfaxnumbersarefaxmachinesthatcanonlyhandleonefaxcallatatime.
To disable this behavior, allowing the fax server to send more than one fax to a number at the
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