Documentation

Documentation.Tutorials-Redirect History

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May 16, 2013, at 07:13 PM by 109.99.235.212 -
Changed line 1 from:
!![[Documentation.Index | Documentation]] -> [[Documentation.Tutorials | Tutorials ]] -> [[Documentation.Tutorials-Redirect | SIP Redirect]]
to:
!!!!!Documentation -> [[Documentation.Tutorials | Tutorials ]] -> SIP Redirect
May 09, 2013, at 05:33 PM by 79.118.227.150 -
Changed lines 1-2 from:
!SIP Redirect with script example
to:
!![[Documentation.Index | Documentation]] -> [[Documentation.Tutorials | Tutorials ]] -> [[Documentation.Tutorials-Redirect | SIP Redirect]]
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April 24, 2013, at 08:57 PM by 79.118.215.235 -
Added lines 1-38:
!SIP Redirect with script example

You will need to load the exec.so module so you can run external scripts

[@
loadmodule "exec.so"
@]


In this snippet I am restricting by IP address and by a IP range. You will notice that I used a regular expression to determine the IP range 192.168.0.0/16.
You will also notice in this example the use of the function [[http://www.opensips.org/html/docs/modules/1.4.x/exec.html#id228172 | exec_dest()]]. This function calls an external script and assumes that the script returns a SIP URI. Then sets the "Contact" header to the returned SIP URI. You can also use pseudo variables in the exec_dset() function. In this example $tU (To Username) and $fU (From Username) are used.

[@
route {
if ( src_ip == 10.x.x.x || src_ip =~ "^192\.168\..*") {
if(method == "INVITE") {
exec_dset("/usr/local/bin/local_check $fU $tU");
sl_send_reply("302","LCR Redirect");
} else {
route(1);
}
} else {
sl_send_reply( "403", "You are not allowed here!" );
exit;
}
}
@]

Now here is just a dummy script that echoes a SIP URI. You can make it any script you want but is needs to output a valid SIP URI to standard out: (IE. sip:+12125551212@domain.com)

[@
#!/bin/sh

echo sip:+12125551212@domain.com

@]

!!NOTE: To get this to work correctly with Asterisk you need to add "promiscredir=yes" to the general section of your sip.conf

Page last modified on May 16, 2013, at 07:13 PM