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ISDND.RC(5)		    BSD File Formats Manual		   ISDND.RC(5)

NAME
     isdnd.rc — isdn4bsd ISDN connection management daemon config file format

DESCRIPTION
     The file /etc/isdn/isdnd.rc contains (if not otherwise specified on the
     command line) the runtime configuration for the isdnd(8) ISDN connection
     management daemon which is part of the isdn4bsd package.

     The configuration file consists of keywords which start in column 1 fol‐
     lowed by one or more spaces or tabs, an equal sign, one or more spaces or
     tabs and a keyword dependent parameter value.

     A line beginning with '#' is treated as a comment line.

     For keywords requiring the specification of a boolean value, the truth
     value can be either yes or on while the false value can be either no or
     off.

     The configuration file consists of one system section, one or more
     optional controller sections and one or more entry sections.  In the
     system section parameters regarding the daemon operation or parameters
     not associated with a single remote connection can be set.	 In the
     controller section parameters regarding a particular controller can be
     set.  In the entry section(s) parameters directly associated with a sin‐
     gle remote connection can be set.

     The following keywords are recognized by isdnd:

     system  This keyword starts the system configuration section.  It must
	     not have a parameter and may be used only once.  The keyword is
	     mandatory.	 The following keywords are valid in the system con‐
	     figuration section:
	     acctall	  If this parameter is set to on, accounting informa‐
			  tion is written even if the local site was not
			  charged or no charging information is available or
			  is not subscribed.  (optional)
	     acctfile	  Specifies the name of the accounting file which is
			  used when the keyword useacctfile (see below) is set
			  to on.  See also system keyword rotatesuffix.	 If
			  this keyword is omitted the system default is used.
			  (optional)
	     aliasing	  If this parameter is set to on, alias processing of
			  telephone-number to name is enabled (see also the
			  aliasfile keyword below).  The default is off.
			  (optional)
	     aliasfile	  Specifies the name of the telephone number-to-name
			  alias database file shared with the isdntel(8) util‐
			  ity when alias processing is enabled via the
			  aliasing keyword.  (optional)
	     beepconnect  In full-screen mode, if this parameter is set to on,
			  ring the bell when connecting or disconnecting a
			  call.
	     extcallattr  If this parameter is set to on, the extended caller
			  attributes "screening indicator" and "presentation
			  indicator" are written to the log-file.  The default
			  is off.  (optional)
	     holidayfile  Specifies the name of the holiday file containing
			  the dates of holidays.  This file is used in con‐
			  junction with the valid keyword to lookup the dates
			  of holidays.	(optional)
	     isdntime	  If this parameter is set to on, date/time informa‐
			  tion from the exchange (if provided) is written to
			  the log-file.	 The default is off.  (optional)
	     mailer	  This keyword is used to specify the path/name of a
			  mail program which which is able to use the "-s"
			  flag to specify a subject on its command line.  In
			  case of a fatal error exit of isdnd.rc this program
			  is used to send mail to an administrator specified
			  by the keyword mailto.  (optional)
	     mailto	  This keyword is used to specify the email address of
			  someone to notify in case of a fatal error exit of
			  isdnd.rc.  (See also keyword mailer).	 (optional)
	     monitor-allowed
			  If this parameter is set to on or yes, monitoring
			  via a local or remote machine is enabled.  This
			  parameter is optional and is set to off by default.
	     monitor-port
			  sets the TCP port number for remote monitoring.
			  This integer parameter is optional and is set to
			  port 451 by default.
	     monitor	  This keyword specifies a local socket name or a host
			  or network for remote monitoring.  The monitor spec‐
			  ification may either be:

			  the name of a local (UNIX-domain) socket
				  this MUST start with a "/", example:
				  /var/run/isdn-monitor
			  a dotted-quad host specification
				  example: 192.168.1.2
			  a dotted-quad network address with netmask
				  example: 192.168.1.0/24
			  a resolvable host name
				  example: localhost
			  a resolvable network name with netmask
				  example: up-vision-net/24
	     monitor-access
			  This keyword specifies the access rights for a pre‐
			  viously used monitor keyword.	 The supported access
			  rights are:

			  fullcmd
			  restrictedcmd
			  channelstate
			  logevents
			  callin
			  callout
	     ratesfile	  Specifies the name of the ratesfile.	If this key‐
			  word is omitted the system default is used.
			  (optional)
	     regexpr	  This keyword is used to specify regular expressions.
			  It can be specified more than once up to a compile
			  time dependent value (currently set to 5 by the
			  MAX_RE definition in the source).

			  All specified regular expressions are compared to
			  the log strings at runtime and if a match is found,
			  a program is run with the log text as a parameter
			  (see also the keyword regprog below).

			  For an explanation how regular expressions are spec‐
			  ified, please have a look at re_format(7) and
			  regex(3).  The extended regular expression syntax is
			  supported here.

			  Hint: it might be necessary to properly quote the
			  expression to avoid improper interpretation by the
			  configuration file parser.  (optional)
	     regprog	  This keyword is used to specify the name of a pro‐
			  gram which is run in case a corresponding regular
			  expression is matched by a logging string.  Isdnd
			  expects to find the program below the path /etc/isdn
			  which is prepended to the string specified as a
			  parameter to this keyword.  (optional)
	     rotatesuffix
			  Specifies a suffix for renaming the log- and the
			  accounting-filename.	In case rotatesuffix is used
			  and a USR1 signal is sent to isdnd, the log-file and
			  the accounting file is not only closed and reopened
			  but the old log-file is also renamed to the former
			  filename with the rotatesuffix string appended.  If
			  this keyword is omitted, the log-files are just
			  closed and reopened; this is also the default behav‐
			  ior.	(optional)
	     useacctfile  If this parameter is set to on charging (if avail‐
			  able) and accounting information is written to the
			  accounting file.  (optional)
     controller
	     This keyword starts the controller configuration section.	It
	     must not have a parameter and may be used once for every con‐
	     troller.  The keyword is optional.	 The following keywords are
	     valid in a controller configuration section:
	     firmware	  This keyword is used to specify the path of the
			  firmware file that will be loaded to the card once
			  isdnd is started.  This keyword is useful with
			  active ISDN cards.
	     protocol	  This keyword is used to set the D-channel protocol
			  for the S0-bus a controller is connected to.	The
			  following parameters are currently supported:

			      dss1	  The DSS1 or so-called "Euro-ISDN" D-
					  channel protocol according to ITU
					  Recommendations Q.921 and Q.931.
			      d64s	  An ISDN leased line with a single B-
					  channel (called D64S in Germany).
     entry   This keyword starts one configuration entry.  It must not have a
	     parameter.	 This keyword must be used at least once.  The follow‐
	     ing keywords are valid in an entry section:

	     answerprog
		       This keyword is used to specify the name of a program
		       which is run in case an incoming telephone connection
		       specified answer in its configuration entry.  The
		       default name is answer.	Isdnd expects to find this
		       program beneath the path /etc/isdn which is prepended
		       to the string specified as a parameter to this keyword.
		       (optional)

	     alert     is used to specify a time in seconds to wait before
		       accepting a call.  This keyword is only usable for
		       incoming telephone calls (dialin-reaction = answer).
		       It is used to have a chance to accept an incoming call
		       on the phone before the answering machine starts to
		       run.  The minimum value for the alert parameter is 5
		       seconds and the maximum parameter allowed is 180 sec‐
		       onds.  (optional)

	     autoupdown
		       For network interfaces using ISDN as a transport medium
		       it does not make sense to mark the interfaces UP before
		       running isdnd.  Typically these interfaces are config‐
		       ured, but marked down, in the respective ifconfig.*
		       file.  When starting, isdnd recognizes these interfaces
		       (configured with some address, marked down, and having
		       a matching config entry) and marks them up.  On shut‐
		       down, isdnd marks all interfaces changed at startup
		       DOWN again.

		       In rare circumstances you might not want this automatic
		       handling.  In this cases add an autoupdown=no line to
		       the config file entry.

	     b1protocol
		       The B channel layer 1 protocol used for this connec‐
		       tion.  The keyword is mandatory.	 The currently config‐
		       urable values are:

		       hdlc    HDLC framing.
		       raw     No framing at all (used for telephony).

	     budget-calloutperiod
		       is used to specify a time period in seconds.  Within
		       this period, the number of calls specified by
		       budget-calloutncalls are allowed to succeed, any fur‐
		       ther attempt to call out will be blocked for the rest
		       of the time left in the time period.  (optional)

	     budget-calloutncalls
		       The number of outgoing calls allowed within the time
		       period specified by budget-calloutperiod.  (optional)

	     budget-calloutsfile
		       A path/filename to which the number of successful call‐
		       outs are written.  The contents of the file is pre‐
		       served when it exists during startup of isdnd.  The
		       format of this file is: start time, last update time,
		       number of calls.	 (optional)

	     budget-calloutsfile-rotate
		       If set to on rotate budget-calloutsfile every night
		       when an attempt is made to update the file on a new
		       day.  The statistics for the previous day are written
		       to a file with the filename specified by budget-call‐
		       outsfile to which a hyphen and the new day's (!) day of
		       month number is appended.  (optional)

	     budget-callbackperiod

	     budget-callbackncalls

	     budget-callbacksfile

	     budget-calloutsfile-rotate
		       See budget-calloutperiod, budget-calloutncalls and
		       budget-calloutsfile budget-calloutsfile-rotate above.
		       These are used to specify the budgets for calling back
		       a remote site.

	     callbackwait
		       The time in seconds to wait between hanging up the call
		       from a remote site and calling back the remote site.
		       (optional)

	     calledbackwait
		       The time in seconds to wait for a remote site calling
		       back the local site after a call from the local site to
		       the remote site has been made.  (optional)

	     connectprog
		       specifies a program run every time after a connection
		       is established and address negotiation is complete
		       (i.e.: the connection is usable).  Isdnd expects to
		       find the program below the path /etc/isdn which is
		       prepended to the string specified as a parameter to
		       this keyword.  The programs specified by connect and
		       disconnect will get the following command line argu‐
		       ments: -d (device) -f (flag) [ -a (addr) ] where device
		       is the name of device, e.g. "ippp0", flag will be "up"
		       if connection just got up, or "down" if interface
		       changed to down state and addr the address that got
		       assigned to the interface as a dotted-quad IP address
		       (optional, only if it can be figured out by isdnd).
		       (optional)

	     dialin-reaction
		       Used to specify what to do when an incoming connection
		       request is received.  The keyword is mandatory.	The
		       currently supported parameters are:

			   accept      Accept an incoming call.
			   reject      Reject an incoming call.
			   ignore      Ignore an incoming call.
			   answer      Start telephone answering for an incom‐
				       ing voice call.
			   callback    When a remote site calls, hang up and
				       call back the remote site.

	     dialout-type
		       This keyword is used to configure what type of dialout
		       mode is used.  The keyword is mandatory.	 The currently
		       supported parameters are:

		       normal  Normal behavior, call the remote site which is
			       supposed to accept the call.
		       calledback
			       Callback behavior, call the remote side which
			       rejects the call and calls us back.

	     dialrandincr
		       When dialing or re-dialing and this parameter is set to
		       on, the dial retry time is added with a random value
		       (currently 0...3 seconds) to minimize the chance of two
		       sites dialing synchronously so each gets a busy each
		       time it dials because the other side is also dialing.

	     dialretries
		       The number of dialing retries before giving up.	Set‐
		       ting this to -1 gives an unlimited number of retries!
		       (optional)

	     direction
		       This keyword is used to configure if incoming and out‐
		       going, incoming-only or outgoing only connections are
		       possible.  The keyword is optional, the default is
		       inout.

		       The currently supported parameters are:

		       inout   Normal behavior, connection establishment is
			       possible from remote and local.
		       in      Only incoming connections are possible.
		       out     Only outgoing connections are possible.

	     disconnectprog
		       specifies a program run every time after a connection
		       was shut down.  Isdnd expects to find the program below
		       the path /etc/isdn which is prepended to the string
		       specified as a parameter to this keyword.  (optional)

	     downtries
		       is used to configure the number of unsuccessful tries
		       (= retry cycles!) before the interface is disabled (for
		       downtime seconds).  (see also the keyword usedown fur‐
		       ther up).  This keyword is optional.

	     downtime  is used to configure the time in seconds an interface
		       is disabled after the configured number of downtries.
		       (see also the keyword usedown further up).  This key‐
		       word is optional and is set to 60 seconds by default.

	     earlyhangup
		       A (safety) time in seconds which specifies the time to
		       hang up before an expected next charging unit will
		       occur.  (optional)

	     idle-algorithm-outgoing
		       The algorithm used to determine when to hang up an out‐
		       going call when the line becomes idle.  The current
		       algorithms are:

			   fix-unit-size
				       idle algorithm which assumes fixed
				       sized changing units during the whole
				       call.
			   var-unit-size
				       idle algorithm which assumes that the
				       charging is time based after the first
				       units time has expired.

	     idletime-outgoing
		       The time in seconds an outgoing connection must be idle
		       before hanging up.  An idle timeout of zero disables
		       this functionality.  (optional)

	     idletime-incoming
		       The time in seconds an incoming connection must be idle
		       before hanging up.  An idle timeout of zero disables
		       this functionality.  (optional)

	     isdncontroller
		       The ISDN controller number to be used for connections
		       for this entry.	(mandatory)

	     isdnchannel
		       The ISDN controller channel number to be used for con‐
		       nections for this entry.	 In case a channel is explic‐
		       itly selected here, the SETUP message will request this
		       channel but mark the request as preferred (the indi‐
		       cated channel is preferred) instead of exclusive (only
		       the indicated channel is acceptable).  Thus the
		       exchange is still free to select another than the
		       requested channel!  (mandatory)

	     isdntxdel-incoming
		       How long to delay the transmission of the first packet
		       after a successful connection is made for incoming ISDN
		       connections.  The specification unit is 1/100 second.
		       A zero (0) disables this feature and is the default
		       value.  This feature is implemented (and makes sense
		       only) for the irip(4) IP over raw HDLC ISDN driver.
		       (optional)

	     isdntxdel-outgoing
		       How long to delay the transmission of the first packet
		       after a successful connection is made for outgoing ISDN
		       connections.  The specification unit is 1/100 second.
		       A zero (0) disables this feature and is the default
		       value.  This feature is implemented (and makes sense
		       only) for the irip(4) IP over raw HDLC ISDN driver.
		       (optional)

	     local-phone-dialout
		       The local telephone number used when the local site
		       dials out.  When dialing out to a remote site, the num‐
		       ber specified here is put into the Calling Party Number
		       Information Element.

		       This keyword is mandatory for the irip user-land inter‐
		       faces.

	     local-phone-incoming
		       The local telephone number used for verifying the des‐
		       tination of incoming calls.  When a remote site dials
		       in, this number is used to verify that it is the local
		       site which the remote site wants to connect to.	It is
		       compared with the Called Party Number Information
		       Element got from the telephone exchange.

		       This keyword is mandatory for the irip interfaces.

	     name      Defines a symbolic name for this configuration entry.
		       Its purpose is to use this name in the full-screen dis‐
		       play for easy identification of a link to a remote site
		       and for accounting purposes.  (mandatory)

	     ppp-auth-paranoid
		       If set to no, the remote site is not required to prove
		       its authenticity for connections that are initiated by
		       the local site.	The default is yes and requires the
		       remote site to always authenticate.

		       This keyword is only used if ppp-send-auth has been set
		       to pap or chap for an ippp PPP interface.  (optional)

	     ppp-auth-rechallenge
		       Set to no, if the other side does not support re-chal‐
		       lenging for chap.  The default is yes, which causes
		       verification of the remote site's authenticity once in
		       a while.

		       This keyword is only used if ppp-expect-auth has been
		       set to chap for an ippp PPP interface.  (optional)

	     ppp-expect-auth
		       The local site expects the authenticity of the remote
		       site to be proved by the specified method.  The sup‐
		       ported methods are:

		       none    Do not require the other side to authenticate.
			       Typical uses are dial-out to an ISP (many ISPs
			       do not authenticate themselves to clients) or
			       offering anonymous dial-in at the local site.
		       chap    The preferred authentication method, which does
			       not require a password to be sent in the clear.
		       pap     The unprotected authentication method, which
			       allows anybody watching the wire to grab name
			       and password.

		       If ppp-auth-paranoid is set to no (the default is yes)
		       outgoing connections will not require the remote site
		       to authenticate itself.

		       This keyword is only used for the ippp PPP interfaces.
		       (optional)

	     ppp-expect-name
		       The name that has to be provided by the remote site to
		       prove its authenticity.

		       This keyword is only used if ppp-expect-auth has been
		       set to pap or chap for an ippp PPP interface.
		       (optional)

	     ppp-expect-password
		       The secret that has to be provided by the remote site
		       to prove its authenticity.

		       This keyword is only used if ppp-expect-auth has been
		       set to pap or chap for an ippp PPP interface.
		       (optional)

	     ppp-send-auth
		       The authentication method required by the remote site.
		       The currently supported parameters are:

		       none    The remote site does not expect or support
			       authentication.
		       chap    The preferred authentication method, which does
			       not require a password to be sent in the clear.
		       pap     The unprotected authentication method, which
			       allows anybody watching the wire to grab name
			       and password.

		       This keyword is only used for the ippp PPP interfaces.
		       (optional)

	     ppp-send-name
		       The authentication name sent to the remote site.

		       This keyword is only used if ppp-send-auth has been set
		       to pap or chap for an ippp PPP interface.  (optional)

	     ppp-send-password
		       The secret used to prove the local site's authenticity
		       to the remote site.

		       This keyword is only used if ppp-send-auth has been set
		       to pap or chap for an ippp PPP interface.  (optional)

	     ratetype  The rate entry used from the rates file.	 (optional)

		       For example, ratetype=0 selects lines beginning "ra0"
		       in /etc/isdn/isdnd.rates; (typically ra0 lines are a
		       set of tables for local call rates on different days of
		       the week & times per day).

	     recoverytime
		       The time in seconds to wait between dial retries.
		       (optional)

	     remdial-handling
		       is used to specify the dialout behavior in case more
		       than one outgoing number is specified.  The currently
		       supported parameters are:

		       first   For every new (non-retry) call setup, start
			       with the first number.
		       last    For every new (non-retry) call setup, start
			       with the last number with which a successful
			       connection was made.
		       next    For every new (non-retry) call setup, start
			       with the next number which follows the last one
			       used.

	     remote-phone-dialout
		       The remote telephone number used when the local site
		       dials out.  When dialing out to a remote site, the num‐
		       ber specified here is put into the Called Party Number
		       Information Element.

		       This keyword is mandatory for the irip interfaces.  It
		       may be specified more than once to try to dial to sev‐
		       eral numbers until one succeeds.

	     remote-phone-incoming
		       The remote telephone number used to verify an incoming
		       call.  When a remote site dials in, this number is used
		       to verify that it is the correct remote site which is
		       herewith authorized to connect into the local system.
		       This parameter is compared against the Calling Party
		       Number Information Element got from the telephone
		       exchange.

		       This keyword is mandatory for the irip interfaces.

		       This keyword may have a wildcard parameter '*' to per‐
		       mit anyone dialing in.

	     unitlength
		       The length of a charging unit in seconds.  This is used
		       in conjunction with the idletime to decide when to hang
		       up a connection.	 (optional)

	     unitlengthsrc
		       This keyword is used to specify from which source
		       isdnd(8) takes the unitlength for short-hold mode.  The
		       currently configurable values are:

		       none    Then unitlength is not specified anywhere.
		       cmdl    Use the unitlength specified on the command
			       line.
		       conf    Use the unitlength specified in the configura‐
			       tion file with the keyword unitlength.
		       rate    Use the unitlength from the ratesfile specified
			       in the configuration file with the keyword
			       ratetype.
		       aocd    Use a dynamically calculated unitlength in case
			       AOCD is subscribed on the ISDN line.  (AOCD is
			       an acronym for ``Advice Of Charge During the
			       call'' which is a service provided by the
			       telecommunications (ie phone) provider, to
			       indicate billable units).

	     usrdevicename
		       Specifies the user-land interface which is used for
		       interfacing ISDN B channel data to the user-land.  The
		       keyword is mandatory.  This keyword accepts the follow‐
		       ing parameters:

		       irip    This parameter configures a raw HDLC IP over
			       ISDN interface.
		       ippp    This parameter configures a synchronous PPP
			       over ISDN interface.
		       rbch    This specifies a Raw B Channel access inter‐
			       face.
		       isdntel
			       ISDN telephony.
		       ing     configures a ISDN B-channel to NetGraph inter‐
			       face.

	     usrdeviceunit
		       Specifies the unit number for the device which is spec‐
		       ified with usrdevicename.

	     usedown   is used to enable the use of the keywords downtries and
		       downtime in the entries section(s).  It is used in the
		       isdnd daemon to dynamically enable and disable the IP
		       interfaces to avoid excessive dialing activities in
		       case of transient failures (such as busy lines).	 This
		       parameter is optional and is set to off by default.

	     valid     Note: this feature is considered experimental!  The
		       parameter to this keyword is a string specifying a time
		       range within which this entry is valid.	The time spec‐
		       ification consists of a list of weekdays and/or a holi‐
		       day indicator ( see also the holidayfile keyword in the
		       system section ) separated by commas followed by an
		       optional daytime range specification in the form hh:mm-
		       hh:mm.  The weekdays are specified as numbers from 0 to
		       6 and the number 7 for holidays:

		       0       Sunday
		       1       Monday
		       2       Tuesday
		       3       Wednesday
		       4       Thursday
		       5       Friday
		       6       Saturday
		       7       a Holiday

		       The following examples describe the "T-ISDN xxl" tariff
		       of the german Telekom:
		       1,2,3,4,5,6,09:00-18:00
			       Monday through Saturday, daytime 9:00 to 18:00
		       1,2,3,4,5,6,18:00-9:00
			       Monday through Saturday, nighttime 18:00 to
			       9:00
		       0,7     Sunday and on holidays, all 24 hours

		       The use of this keyword is optional.

IDLETIME CALCULATION AND SHORT-HOLD MODE
     incoming calls
	     It is assumed that the calling side knows most about charging
	     structures and such and as a consequence only the keyword
	     idletime-incoming has a function for incoming calls.

	     For incoming calls the line is constantly monitored, and in case
	     there was not traffic taking place for the time in seconds speci‐
	     fied by idletime-incoming the call is closed.

	     Typically, idletime-incoming is used as a last resort and is
	     therefore set much higher than a charging unit time: typical val‐
	     ues are one to five minutes.
     outgoing calls
	     Outgoing call disconnect time can be set up in one of three ways:
	     simple mode
		     For simple mode, the idle-algorithm-outgoing must be
		     fix-unit-size and the selected unitlength must be 0
		     (zero) and idletime-outgoing greater zero.

		     The outgoing traffic is constantly monitored, and in case
		     there was not traffic taking place for the time in sec‐
		     onds specified by idletime-outgoing the call is closed.

		     Typical values in simple mode are 10 to 30 seconds.
	     shorthold mode for fixed unit charging
		     For shorthold mode, the idle-algorithm-outgoing
		      must be fix-unit-size
		      and the selected unitlength and idletime-outgoing must
		     be greater than 0 (zero); earlyhangup must be ≥ 0 (zero).

		     |<unchecked-window>|<checkwindow>|<safetywindow>|
		     |			|	      |		     |
		     +------------------+-------------+--------------+
		     |			|	      |		     |
		     |			|<-idle-time->|<earlyhangup->|
		     |<--------------unitlength--------------------->|

		     During the unchecked window which is (unitlength - (idle-
		     time+earlyhangup)) in length, no idle check is done.
		     After the unchecked window has ended, the line is checked
		     for idle-time length if no traffic takes place.  In case
		     there was traffic detected in the check-window, the same
		     procedure is restarted at the beginning of the next unit.
		     In case no traffic was detected during the check-window,
		     the line is closed at the end of the check window.

		     Notice: unitlength must (!) be greater than the sum of
		     idletime-outgoing and earlyhangup!
	     shorthold mode for variable unit charging
		     For shorthold mode, the idle-algorithm-outgoing must be
		     var-unit-size and the selected unitlength and
		     idletime-outgoing must be greater than 0 (zero);

		     This shorthold mode is suitable when your calls are
		     billed on the elapse time of the call plus a fixed con‐
		     nection charge.  For example British Telecom bill this
		     way.

		     Each call is divided into two periods, the first is the
		     unchecked period and the second is the checked.  The
		     checked period starts 1 second before the first units
		     time expires.

		     During the checked period if there is no traffic for
		     idle-time seconds the call is disconnected.

		     |<---unchecked------------------>|<------checked------>
		     +------------------+-------------+
		     |			|<-idle-time->|
		     |<--------------unitlength------->|

		     Experience shows that useful values for idle-time are
		     from 15 to 30 seconds.

		     If idle-time is too short an application that is not yet
		     finished with the network will cause a new call to be
		     placed.

FILES
     /etc/isdn/isdnd.rc	 The default configuration file for the isdnd ISDN
			 daemon.

SEE ALSO
     regex(3), re_format(7), isdnd(8), isdnmonitor(8)

AUTHORS
     The isdnd(8) daemon and this manual page were written by Hellmuth
     Michaelis ⟨hm@kts.org⟩.

     Additions to this manual page by
     Barry Scott ⟨barry@scottb.demon.co.uk⟩.

BSD			      September 25, 2003			   BSD
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