Specifications

HYLAFAX-CONFIG(5F) HYLAFAX-CONFIG(5F)
IXOMaxUnknown integer 3 IXO and UCP: max unknown responses before abort
IXOIDProbe integer 2 IXO: time between sending \r during ID sequence (secs)
IXOIDTimeout integer 20 IXO: max time to wait for ID= response (secs)
IXOLoginRetries integer 3 IXO: max attempts to login
IXOLoginTimeout integer 15 IXO: max time to complete login (secs)
IXOGATimeout integer 30 IXO: max time to wait for Go-Ahead response (secs)
IXOXmitRetries integer 3 IXO and UCP: max retries to send text msg block
IXOXmitTimeout integer 15 IXO and UCP: max time to transmit text msg block
IXOAckTimeout integer 30 IXO: max time to wait for msg block ack (secs)
SERVER-ORIENTED CONFIGURATION PARAMETERS
These configuration parameters affect the general operation of the fax server.
AdaptiveAnswer
Control whether or not an adaptive answering strategy is used whereby an incoming call is
answered in multiple ways according to the list specified in the AnswerRotary parameter.For
example, if adaptive answering is enabled and AnswerRotary specifies ‘‘fax data’’, then an
incoming call will first be answered as fax using ModemAnswerFaxCmd and then, if that fails,
as data using ModemAnswerDataCmd.Ifthe adaptive answer strategy is not enabled, then calls
are answered using the appropriate ModemAnswer*Cmd parameter (normally ModemAnswer-
Cmd for unattended operation). Note that the adaptive answer strategy depends on manyfactors
that limit its usefulness. When calls are answered first as fax, it typically only works with a Class
1modem because it is important that the sequence of operations related to answering as fax be
completed in a short enough time that a subsequent answer for data be done before the caller times
out and hangs up the telephone (for this reason Class1RecvIdentTimer should be set to a value
that is shorter than FaxT1Timer.) Also, note that it is sometimes necessary to arrange that the
phone be placed on-hook between successive answers; this can typically be done by inserting the
appropriate command at the start of the second and subsequent ModemAnswer*Cmds.
AdminGroup
Tells PAM what user group is allowed to administer the fax server.Only useful if the server is
compiled with PAM enabled.
AnswerRotary
The sequence of answering techniques the server should ‘‘rotate through’’when answer incoming
calls. Answering techniques are:
Name Description
faxanswer a fax call
data answer adata call
voice answer avoice call
extern use the vgetty application to answer a call
anyanswer a call of any/unknown type
When a call is not answered successfully,the server advances the rotary to the next specified
answering technique. If AdaptiveAnswer is enabled, the server will try all the answering tech-
niques for each incoming call. Otherwise, the rotary is advanced between unsuccessful phone
calls. For example, if AdaptiveAnswer is disabled and AnswerRotary is ‘‘fax data’’, then the
calls will initially be answered as fax until the first call is receivedthat does not appear to be from
afax machine; after that calls will be answered as if theywere from a data modem until the next
unsuccessful call; after which theywill one again be answered as fax. Only the first three tech-
niques listed are used; anyadditional ones are (silently) ignored. See also AnswerBias.
AnswerBias
The indexinto the AnswerRotary list that the server should rotate the list to after each successful
incoming phone call. List indices are numbered starting at zero. Forexample, if AnswerRotary
is ‘‘fax data’’and AnswerBias is 1, then after each successful inbound call, the next call will be
answered as data.
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