[Serusers] SER & Asterisk (IVR problem)

[Roberto Lopes]

Hi to all!
I've a big problem with SER & Asterisk
I've a network where i put them working together.
Asterisk is the media gateway with PSTN as well as being the server which is
making all the services available (IVR, voicemail, conference calls, etc).
SER just routes calls either to the softphones, VoIP phones or to Asterisk
who will just forward the calls to PSTN (via Asterisk).
Till now everything works well except the service IVR which is working on
Asterisk.

Details:
192.168.226.13 - IP SER
192.168.226.45 - IP Asterisk

The problem is only after the user (roberto at 192.168.226.13 - authenticated
and authorized in RADIUS) calls IVR.
Till then the user calls, IVR gives some information to the user and
everything goes well.
Problem is when he presses a number which will have to redirect the call to
another user.
And why is there a problem.
Because the initially roberto at 192.168.226.13 to be able to call IVR had to
rewrite host & port 192.168.226.45 so that the call would reach Asterisk who
would then call to the IVR.
That rewriting turned roberto at 192.168.226.13 into roberto at 192.168.226.45.
That is, I can say, that it became a "new user".
While it's on the IVR there's no problem, but when call is diverted it has
to give its credentials...
Credentials that don't exist in RADIUS cause it only accepts usernames that
end in @192.168.226.13 (IP of SER)

Here is the following code, both of extensions file in Asterisk and
configure file of SER
I hope somebody knows how to solve it or at least find a way how to.

extensions.conf - Asterisk

[sip]
exten => 74001,1,Answer
exten => 74001,2,SetMusicOnHold(default)
exten => 74001,3,Set(TIMEOUT(digit)=5)
exten => 74001,4,Set(TIMEOUT(response)=10)
exten => 74001,5,Background(menu)

exten => 1,1,Dial(SIP/roberto at 192.168.226.13:5060,,r)
...
exten => 7,1,Goto(sip,74001,1)
exten => 8,1,Hangup


ser.cfg - SER

...
if ((uri=~"^sip:7[0-9]{4}@.*")) {
        route(5);
        break;
};
...
route[5] {     # Redirecting to Asterisk
    # MsgLog
    xlog("L_ALERT","(WARNING) Sending to Asterisk request of %fu to %tu\n");
    rewritehostport("192.168.226.45:5060");
    route(1);
}


Thanks for your help,
Roberto Lopes
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