CALL
The CALL script initiates a call to the remote end. The script ensures that it know the IP address of the remote station, and that the local node to IP list (HOSTS file) is up to date. Once the series of checks is completed, it initiates IRLP_CALL and sends the call request to the remote site.

CALL_TO_REFLECTOR
The CALL_TO_REFLECTOR script is used to call an idle node (not yours) to a reflector session. This script is run from DTMF and will work if your node is idle or connected to the reflector.

CONNECT_TO_REFLECTOR
The CONNECT_TO_REFLECTOR script initiates a call to the reflector. The call is blind, and may not work if the reflector is down or disabled.

CONTROL
The CONTROL script is the heart of IRLP_CALL and IRLP_ANSWER. After authentication, all info sent to and from the node is done so through the CONTROL script. Control works with a FIFO (first in first out) system. All things sent to the FIFO appear as arguments to the control script on the remote station. The control script calls all other scripts depending on several conditions.

DECODE
The DECODE file is run by the DTMF process with the DTMF code entered as the argument. The CUSTOM_DECODE file is run from within the DECODE script, and allows users to add their own personal DTMF controlled. These custom codes include the enable and disable codes.

DISABLE
The DISABLE script when run (via DTMF or by terminal operation) disables the IRLP node from all calls and DTMF decoding (except the code to enable the node).

DROPCALL
The DROPCALL script drops the TCP connection between two nodes.

ENABLE
The ENABLE script when run (via DTMF or by terminal operation) enables a disabled IRLP node. (IRLP nodes are enabled by default on reboot)

END
The END script is called from the DTMF script or is initiated from the remote end. The END script severs the TCP connection (using DROPCALL) and stops the IMIKE and ISPEAKER processes.

FAILURE
The FAILURE script handles all failures on the IRLP node. The failure script will also have an
environment tag set for verbose or brief error messaging. Severe errors will be emailed to the node owners so they are aware of any problems.

IPUPDATE
The IPUPDATE script, run from the crontab every 5 minutes, checks to make sure that the local IP address of your node is correct in the HOSTS file. If your node is behind a firewall, a connection is sent to the IRLP server to check your current IP. If your IP and the posted IP are different, an update is sent to the main IRLP server.

IRLP.CRONS
The IRLP.CRONS file contains all of the crontabs which run as user repeater. During an update, the crontabs are reset to the crontabs contained in the IRLP.CRONS file.  The IRLP.CRONS file contains a set of crontabs (programs which are run automatically at a specified time) which are run as user repeater. These include STATUPDATE, UPDATE (files and hosts) and LOGROTATE. This list of crontabs updates automatically during the file update procedure.

IRLP_RESET
The IRLP_RESET script resets the conditions of all of the IRLP binaries and scripts to an idle and enabled condition. This script is run following an update or if there is a failure during a call.

OFF
The OFF script terminates a connection and plays the "goodbye ID".

ON
The ON script is run from the control script after receiving the necessary authentication. The script plays the ID and initiates the voice connection.

ROTATELOG
The ROTATELOG script rotates the messages file in the log directory. It saves the old log as messages.1, .2, .3 etc.. up until .5 The 5 month old log is deleted.

SFSWRAPPER
Starts the ISPEAKER process. The wrapper ensures that the process is running when it is supposed to be running. This solves many possible lockup problems that have existed in the past with ISPEAKER.

STATUPDATE
The STATUPDATE script is run from the crontab as well as any time the status of your node changes. It contains information on the connect and enabled status of your node.

STATUS
The STATUS script is run from the MYNETD process running on port 15427. It is a dumb script which reads the current status of your node and outputs to the connecting station a text file containing information on the node.

UPDATE
The UPDATE script is run from the MYNETD process running on port 15426. It is a dumb script which takes no arguments, but syncs the filesystem with the server when run. Update is run following an IP update on any node, or file updates.

VOICEMAIL
The VOICEMAIL script (FUTURE) will control all the features of the voicemail system.

WAVPLAY
The WAVPLAY script was written to accommodate the need to play several files back-to-back. It is a shell script which runs using the PLAY binary.

IRLP_START, IRLP_STOP
This script, run as root, sets up all the permissions required and starts all the processes required to run IRLP. Its daughter script, IRLP_STOP, shuts down all of the IRLP processes.