Text in Asterisk

Some channels have support for text communications in Asterisk

Console channels support text receiving (shows up on the console) and sending (using the 'show text' CLI command).
Zap channels support text communications when in TDD mode (using the tdd mode AGI command). This allows communications between Asterisk and TTY/TDD devices.
SIP Supports text messaging during a call, but not outside of a call.
IAX
SCCP (with chan_sccp2)

Related AGI functions

receive char Receive one character of text on a channel, and discard any other characters waiting.
receive text Receive a string of text on a channel.
send text Send text on a channel.
tdd mode Set a Zap channel to TDD mode, for communication with TTY/TDD devices.

Re: Starting Asterisk problem
by slezhuk Tue 09 of Feb, 2010
probably your asterisk binary is not within $PATH variable. Try 'whereis asterisk'. System will show you full path to binary. It's probably something like /usr/bin/asterisk, or maybe /usr/sbin/asterisk. Anyway- you should use 'sudo $fullpath_to_asterisk_binary -r', or write needed directory to $PATH environment variable, and use 'sudo asterisk -r'.
Starting Asterisk problem
by litsnsirn Tue 09 of Feb, 2010
Hi, I am trying to install Asterisk 1.4 on Centos 4.8, basically following the steps in the O'Reilly book. If I go to /etc/rc.d/init.d/asterisk status, it returns "asterisk (pid12730) is running...", but I cannot execute "asterisk -r" anywhere. All that ever returns is a "bash: asterisk: command not found" Am I doing something wrong?
Using FXO Gateway Directly - Possible?
by niddnet Wed 03 of Feb, 2010
Hi All,

This is a strange request, I think - trying to scale down my hardware at home, I've removed my VoIP server (TrixBox). I'm now thinking this may have been a mistake, as I seem to be having difficulty in connecting my FXO to my VoIP hardware. This may even be impossible, I'm not sure.
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