Your company here — click to reach over 10,000 unique daily visitors

call - Man Page

make an AX.25, NET/ROM or Rose connection.


For AX.25
call [-b l|e] [-d] [-h] [-m s|e] [-p paclen] [-s mycall] [-r] [-t] [-T timeout] [-v] [-w window] [-W] port callsign [[via] digipeaters.....]

call [-d] [-h] [-p paclen] [-r] [-t] [-T timeout] [-v] port callsign

For Rose
call [-d] [-h] [-r] [-t] [-T timeout] [-v] port callsign address [[via] digipeater]


Call is the general purpose AX.25, NET/ROM and Rose connection program. As is normal in AX.25 it runs entirely in line mode. All CR/LF translation is done transparently. The program provides ASCII, YAPP, YAPP-C and 7+ file transfer facilities. Some of the options are only valid in AX.25 mode, the program will quietly ignore them if given in NET/ROM mode or in Rose mode.

This version of call incorporates many changes that include a much improved user interface. The port name is mandatory and is the name of the port which the connection will be made on. The port name may be either an AX.25, a NET/ROM port or a Rose port, call will determine which automatically.

When using NET/ROM the use of digipeaters is meaningless and is not supported. However when using Rose up to one digipeater may be specified, as well as the Rose address of the distant node and the callsign of the remote station. The Rose address must be ten digits long and it must exist in the Rose node tables. For Rose connects to work axparms must have been used to set a callsign/uid mapping for the userid in use.



UTF-8 encoding (default)

-b l|e

Sets the method of backoff to use with AX.25 connections. The default is taken from the port specification, but can be overridden by this option. Valid values are l for linear backoff, and e for exponential backoff.


Turn on socket level debugging.


Selects Slave mode.


Use IBM850 encoding -m s|e Sets the AX.25 mode to use. The default is taken from the port specification, but can be overridden by this option. Valid values are s for normal (modulus 8) AX.25 operation, or e for extended (modulus 128) AX.25 operation.

-p paclen

Specify a specific maximum amount of data to be sent in each AX.25 packet.


Selects Raw mode.

-s mycall

Connect using the specified source call (you may need to be root).


Selects Talk mode.


Display the version.

-w window

Specify a specific AX.25 window for this connection. Only valid in AX.25 mode.


Be silent. Useful for using call in shellscripts (together with option -r) in order to be really transparent.


Disable all remote commands like autobin (#BIN#), 7plus downloads, //echo, etc. This is useful for scripting where you just don't like the remote site to trigger uncaught conditions here.

-T timeout

Set idle timeout seconds after a connection will be closed automaticaly when there's no data being transferred (in- and outbound). If timeout is set to 3600, the connection will close after 1h inactivity. A value of 0.5 is 500ms.


Wait for remote disconnect even if stdin is closed. Normaly, "echo q | call ax0 db0fhn" closes immediately after "echo q" terminates; thus we never see the greeting from db0fhn. With the -W option, call waits until the ax25-connection is disconnected (i.e. db0fhn disconnects after "q" command). Very useful for scripting. You might like to combine it with the -T option.

The call program interprets lines beginning with a '~' specially. The following '~' escapes are available.


List escapes


A ~ symbol


Close connection

~! [command]

Run a command


Change to Raw mode


Change to Slave mode


Change to Talk mode


UTF-8 encoding


Start a file transfer (Autobin)


Start a file transfer (Binary)


Close the logfile


List escapes


IBM850 encoding

~o [filename]

Open a logfile (default 'logfile.txt')


Reconnect to remote station


Stop an upload

~u [filename]

Upload a file (ASCII upload)

~yu [filename]

Upload a file (YAPP upload)

~yd [filename]

Download a file (YAPP download)


Suspend program

The program provides no terminal emulation features. These are left up to the console facilities of the terminal in use. The program is  however '8 bit clean'.



See Also

listen(1), mheard(1), ax25(4), netrom(4), rose(4), axports(5), nrports(5), rsports(5), axparms(8), nrparms(8), rsparms(8).


Alexander Tietzel DG6XA <TIETZE_A@etech.fh-hamburg.de>
Joerg Reuter DL1BKE <jreuter@poboxes.com>
Alan Cox GW4PTS <alan@cymru.net>
Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>
Steve Henson G6IXS <shenson@nyx.cs.du.edu>

Referenced By

aprsdigi(8), aprsmon(8), ax25(4), axctl(8), axparms(8), axports(5), listen(1), netrom(4), nrbroadcast(5), nrparms(8), nrports(5), rose(4), rsparms(8), rsports(5).

27 August 1996 Linux Programmer's Manual