Hi Rainer,

Yes I did try user_agent_header = "User-Agent: $ua"; but it just passes "$ua" to Freeswitch rather than the value of $ua.

regards,

Errol

On Fri, Oct 3, 2014 at 4:32 PM, Rainer Piper rainer.piper@soho-piper.de wrote:

Am 03.10.2014 um 17:04 schrieb Errol Samuels:

Hello All,

I am using Kamailio in front of Freeswitch and Kamailio is handling the registrations then forwarding to Freeswitch and everything is working for the most part.

However, there is niggling pain in the neck issue where the user's User-Agent shows in Freeswitch as kamailio (4.0.6 (x86_64/linux)) instead of the user's Real User-Agent I am trying to get Kamailio to pass the real User-Agent of the user without success.

I am able to set a static User-Agent by doing this in the global section.

*user_agent_header = "User-Agent: We love beer";*

However, I am unable to set it dynamically for example:

*user_agent_header = "User-Agent: " + $ua; *

*have you tried ... *

*user_agent_header = "User-Agent: $ua"; ? *

With is one Kamailio doesn't even start so my syntax is probably wrong.

I also tried playing around with the textops module so I have ran out of ideas

Any ideas?

Thanks in advance.

regards,

Errol

---

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---

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I also tried your last suggestion at the point when the registeris being forwarded to FS but it had no effect

# Forward REGISTER to Freeswitch route[REGFWD] { if(!is_method("REGISTER")) { return; }

#if ( is_present_hf("User-Agent")) {

* remove_hf("User-Agent"); append_hf("User-Agent: $ua\r\n");* #}

BR

Errol

On Fri, Oct 3, 2014 at 5:08 PM, Rainer Piper rainer.piper@soho-piper.de wrote:

Am 03.10.2014 um 17:52 schrieb Errol Samuels:

Hi Rainer,

Yes I did try user_agent_header = "User-Agent: $ua"; but it just passes "$ua" to Freeswitch rather than the value of $ua.

regards,

Errol

On Fri, Oct 3, 2014 at 4:32 PM, Rainer Piper rainer.piper@soho-piper.de wrote:

...

Am 03.10.2014 um 17:04 schrieb Errol Samuels:

Hello All,

I am using Kamailio in front of Freeswitch and Kamailio is handling the registrations then forwarding to Freeswitch and everything is working for the most part.

However, there is niggling pain in the neck issue where the user's User-Agent shows in Freeswitch as kamailio (4.0.6 (x86_64/linux)) instead of the user's Real User-Agent I am trying to get Kamailio to pass the real User-Agent of the user without success.

I am able to set a static User-Agent by doing this in the global section.

*user_agent_header = "User-Agent: We love beer";*

However, I am unable to set it dynamically for example:

*user_agent_header = "User-Agent: " + $ua; *

*have you tried ... *

*user_agent_header = "User-Agent: $ua"; ? *

*Have you tried to remove the original hf (User-Agent) and set the new one like: remove_hf("User-Agent"); append_hf("User-Agent: $ua\r\n"); *

• ? *

...

With is one Kamailio doesn't even start so my syntax is probably wrong.

I also tried playing around with the textops module so I have ran out of ideas

Any ideas?

Thanks in advance.

regards,

Errol

---

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---

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Thanks for your input Daniel but pardon my ignorance as I am not 100% clear where I need to add that event_route[tm:local-request].

Here is the point where the REGISTER is being sent to Freeswitch. So are you able to provide an example of where I send the real User-Agent of the device to Freeswitch?

# Forward REGISTER to FreeSwitch route[REGFWD] {

if(!is_method("REGISTER")) { return; }

route(DISPATCH); $uac_req(method)="REGISTER"; $uac_req(ruri)=$du; $uac_req(furi)=$fn + "<sip:" + $au + "@" + $ar + ">"; $uac_req(turi)=$tn + "<sip:" + $au + "@" + $ar + ">"; $uac_req(hdrs)="Contact: <sip:" + $au + "@" + $ar + ";fs_path=sip:" + $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport) + ">" + "\r\n"; if($sel(contact.expires) != $null) $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n"; uac_req_send(); exit; }

Thanks

Errol

On Tue, Oct 7, 2014 at 9:07 AM, Daniel-Constantin Mierla miconda@gmail.com wrote:

You have to use event_route[tm:local-request] if you use uac module to send out new REGISTER.

Cheers, Daniel

On 03/10/14 18:32, Errol Samuels wrote:

I also tried your last suggestion at the point when the registeris being forwarded to FS but it had no effect

# Forward REGISTER to Freeswitch route[REGFWD] { if(!is_method("REGISTER")) { return; }

    #if ( is_present_hf("User-Agent")) {

• remove_hf("User-Agent"); append_hf("User-Agent: $ua\r\n");* #}

BR

Errol

On Fri, Oct 3, 2014 at 5:08 PM, Rainer Piper rainer.piper@soho-piper.de wrote:

...

Am 03.10.2014 um 17:52 schrieb Errol Samuels:

Hi Rainer,

Yes I did try user_agent_header = "User-Agent: $ua"; but it just passes "$ua" to Freeswitch rather than the value of $ua.

regards,

Errol

On Fri, Oct 3, 2014 at 4:32 PM, Rainer Piper rainer.piper@soho-piper.de wrote:

...

Am 03.10.2014 um 17:04 schrieb Errol Samuels:

Hello All,

I am using Kamailio in front of Freeswitch and Kamailio is handling the registrations then forwarding to Freeswitch and everything is working for the most part.

However, there is niggling pain in the neck issue where the user's User-Agent shows in Freeswitch as kamailio (4.0.6 (x86_64/linux)) instead of the user's Real User-Agent I am trying to get Kamailio to pass the real User-Agent of the user without success.

I am able to set a static User-Agent by doing this in the global section.

*user_agent_header = "User-Agent: We love beer";*

However, I am unable to set it dynamically for example:

*user_agent_header = "User-Agent: " + $ua; *

*have you tried ... *

*user_agent_header = "User-Agent: $ua"; ? *

*Have you tried to remove the original hf (User-Agent) and set the new one like: remove_hf("User-Agent"); append_hf("User-Agent: $ua\r\n"); *

• ? *

...

With is one Kamailio doesn't even start so my syntax is probably wrong.

I also tried playing around with the textops module so I have ran out of ideas

Any ideas?

Thanks in advance.

regards,

Errol

---

SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- *Rainer Piper* Integration engineer Koeslinstr. 56 53123 BONN GERMANY Phone: +49 228 97167161 <%2B49%20228%2097167161> P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test) XMPP: rainer@xmpp.soho-piper.de

---

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---

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---

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---

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-- Daniel-Constantin Mierlahttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

---

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Hi Sammy,

Thanks for your response and the clarification.

What I am actually trying to do is to pass the real User-Agent info for each device as the Registration is fowarded to Freeswitch so using your code as an example instead of hardcoding the custom "User-Agent: My Server SIP Server" which will show up in Freeswitch for ALL users I want to do something like user_agent_header="User-Agent: $ua" ;

Where $ua as you are aware would be the Real User-Agent of the actual user who registration is being forwarded to Freeswitch.

if($sel(contact.expires) != $null) $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n"; event_route [tm:local-request] { # Handle locally generated requests xlog("L_INFO", "Routing locally generated $rm to <$ru> + Modify the User-Agent Header \n"); user_agent_header="User-Agent: $ua" ; }

uac_req_send(); exit;

I tried to add that code just before the "uac_req_send()" but I get errors when starting Kamailio, Is this compatible with Kamailio 4.0.6?

0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 2-12: syntax error 0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 2-12: bad command 0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 2-12: bad command 0(44073) : <core> [cfg.y:3570]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 14: bad command 0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 15-30: bad command 0(44073) : <core> [cfg.y:3570]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 31: bad command 0(44073) : <core> [cfg.y:3570]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 33: bad command

regards,

Errol

On Tue, Oct 7, 2014 at 9:28 PM, SamyGo govoiper@gmail.com wrote:

Hey Errol,

What I get from Daniel's email is that you only need to add this route in your script and it will trigger itself automatically when "uac_req_send()" function is executed.

event_route [tm:local-request] { # Handle locally generated requests xlog("L_INFO", "Routing locally generated $rm to <$ru> + Modify the User-Agent Header \n"); user_agent_header="User-Agent: My Super SIP Server" ; }

Reference: http://www.kamailio.org/wiki/cookbooks/4.1.x/core?s%5B%5D=event&s%5B%5D=...

BR, Sammy

On Tue, Oct 7, 2014 at 11:20 AM, Errol Samuels ewsamuels@gmail.com wrote:

...

Thanks for your input Daniel but pardon my ignorance as I am not 100% clear where I need to add that event_route[tm:local-request].

Here is the point where the REGISTER is being sent to Freeswitch. So are you able to provide an example of where I send the real User-Agent of the device to Freeswitch?

# Forward REGISTER to FreeSwitch route[REGFWD] {

    if(!is_method("REGISTER"))
    {
            return;
    }

    route(DISPATCH);
    $uac_req(method)="REGISTER";
    $uac_req(ruri)=$du;
    $uac_req(furi)=$fn + "<sip:" + $au + "@" + $ar + ">";
    $uac_req(turi)=$tn + "<sip:" + $au + "@" + $ar + ">";
    $uac_req(hdrs)="Contact: <sip:" + $au + "@"
                            + $ar
                            + ";fs_path=sip:"
                            + $sel(cfg_get.kamailio.bindip)
                            + ":" + $sel(cfg_get.kamailio.bindport)
                            + ">"
                            + "\r\n";
    if($sel(contact.expires) != $null)
            $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +

$sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n"; uac_req_send(); exit; }

Thanks

Errol

On Tue, Oct 7, 2014 at 9:07 AM, Daniel-Constantin Mierla < miconda@gmail.com> wrote:

...

You have to use event_route[tm:local-request] if you use uac module to send out new REGISTER.

Cheers, Daniel

On 03/10/14 18:32, Errol Samuels wrote:

I also tried your last suggestion at the point when the registeris being forwarded to FS but it had no effect

# Forward REGISTER to Freeswitch route[REGFWD] { if(!is_method("REGISTER")) { return; }

    #if ( is_present_hf("User-Agent")) {

• remove_hf("User-Agent"); append_hf("User-Agent: $ua\r\n");* #}

BR

Errol

On Fri, Oct 3, 2014 at 5:08 PM, Rainer Piper <rainer.piper@soho-piper.de

...

wrote:

...

Am 03.10.2014 um 17:52 schrieb Errol Samuels:

Hi Rainer,

Yes I did try user_agent_header = "User-Agent: $ua"; but it just passes "$ua" to Freeswitch rather than the value of $ua.

regards,

Errol

On Fri, Oct 3, 2014 at 4:32 PM, Rainer Piper < rainer.piper@soho-piper.de> wrote:

...

Am 03.10.2014 um 17:04 schrieb Errol Samuels:

Hello All,

I am using Kamailio in front of Freeswitch and Kamailio is handling the registrations then forwarding to Freeswitch and everything is working for the most part.

However, there is niggling pain in the neck issue where the user's User-Agent shows in Freeswitch as kamailio (4.0.6 (x86_64/linux)) instead of the user's Real User-Agent I am trying to get Kamailio to pass the real User-Agent of the user without success.

I am able to set a static User-Agent by doing this in the global section.

*user_agent_header = "User-Agent: We love beer";*

However, I am unable to set it dynamically for example:

*user_agent_header = "User-Agent: " + $ua; *

*have you tried ... *

*user_agent_header = "User-Agent: $ua"; ? *

*Have you tried to remove the original hf (User-Agent) and set the new one like: remove_hf("User-Agent"); append_hf("User-Agent: $ua\r\n"); *

• ? *

...

With is one Kamailio doesn't even start so my syntax is probably wrong.

I also tried playing around with the textops module so I have ran out of ideas

Any ideas?

Thanks in advance.

regards,

Errol

---

SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- *Rainer Piper* Integration engineer Koeslinstr. 56 53123 BONN GERMANY Phone: +49 228 97167161 <%2B49%20228%2097167161> P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test) XMPP: rainer@xmpp.soho-piper.de

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---

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---

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Perhaps you can get it with adding User-Agent header to $uac_req(hdrs):

$uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " + $ua + "\r\n";

And sent the global parameter:

user_agent_header=""

But then no local generated request has user agent, which probably is ok for you.

There are still ways to use event_route[tm:local-request] to set a custom user agent header, but would require something like: - add $us in $uac_req(hdrs) as X-UA header - in event_route[tm:local-request], remove User-Agent and X-UA headers and add again User-Agent taking the value from X-UA

Cheers, Daniel

On 07/10/14 23:06, Errol Samuels wrote:

Hi Sammy,

Thanks for your response and the clarification.

What I am actually trying to do is to pass the real User-Agent info for each device as the Registration is fowarded to Freeswitch so using your code as an example instead of hardcoding the custom "User-Agent: My Server SIP Server" which will show up in Freeswitch for ALL users I want to do something like user_agent_header="User-Agent: $ua" ;

Where $ua as you are aware would be the Real User-Agent of the actual user who registration is being forwarded to Freeswitch.

if($sel(contact.expires) != $null) $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n"; event_route [tm:local-request] { # Handle locally generated requests xlog("L_INFO", "Routing locally generated $rm to <$ru> + Modify the User-Agent Header \n"); user_agent_header="User-Agent: $ua" ; }

    uac_req_send();
    exit;

I tried to add that code just before the "uac_req_send()" but I get errors when starting Kamailio, Is this compatible with Kamailio 4.0.6?

0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 2-12: syntax error 0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 2-12: bad command 0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 2-12: bad command 0(44073) : <core> [cfg.y:3570]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 14: bad command 0(44073) : <core> [cfg.y:3567]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 15-30: bad command 0(44073) : <core> [cfg.y:3570]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 31: bad command 0(44073) : <core> [cfg.y:3570]: yyerror_at(): parse error in config file /etc/kamailio/kamailio.cfg, line 1034, column 33: bad command

regards,

Errol

On Tue, Oct 7, 2014 at 9:28 PM, SamyGo <govoiper@gmail.com mailto:govoiper@gmail.com> wrote:

Hey Errol,

What I get from Daniel's email is that you only need to add this
route in your script and it will trigger itself automatically when
"uac_req_send()" function is executed.

event_route [tm:local-request] { # Handle locally generated requests
xlog("L_INFO", "Routing locally generated $rm to <$ru> + Modify
the User-Agent Header \n");
user_agent_header="User-Agent: My Super SIP Server" ;
}

Reference:
http://www.kamailio.org/wiki/cookbooks/4.1.x/core?s[]=event&s[]=route#event_route

BR,
Sammy


On Tue, Oct 7, 2014 at 11:20 AM, Errol Samuels
<ewsamuels@gmail.com <mailto:ewsamuels@gmail.com>> wrote:

    Thanks for your input Daniel but pardon my ignorance as I am
    not 100% clear where I need to add that
    event_route[tm:local-request].

    Here is the point where the REGISTER is being sent to
    Freeswitch.  So are you able to provide an example of where I
    send the real User-Agent of the device to Freeswitch?

    # Forward REGISTER to FreeSwitch
    route[REGFWD] {

    if(!is_method("REGISTER"))
            {
                    return;
            }

            route(DISPATCH);
    $uac_req(method)="REGISTER";
            $uac_req(ruri)=$du;
            $uac_req(furi)=$fn + "<sip:" + $au + "@" + $ar + ">";
            $uac_req(turi)=$tn + "<sip:" + $au + "@" + $ar + ">";
            $uac_req(hdrs)="Contact: <sip:" + $au + "@"
                                    + $ar
                                    + ";fs_path=sip:"
                                    + $sel(cfg_get.kamailio.bindip)
                                    + ":" +
    $sel(cfg_get.kamailio.bindport)
                                    + ">"
                                    + "\r\n";
            if($sel(contact.expires) != $null)
                    $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +
    $sel(contact.expires) + "\r\n";
            else
                    $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +
    $hdr(Expires) + "\r\n";
            uac_req_send();
            exit;
    }

    Thanks

    Errol



    On Tue, Oct 7, 2014 at 9:07 AM, Daniel-Constantin Mierla
    <miconda@gmail.com <mailto:miconda@gmail.com>> wrote:

        You have to use event_route[tm:local-request] if you use
        uac module to send out new REGISTER.

        Cheers,
        Daniel


        On 03/10/14 18:32, Errol Samuels wrote:

...

        I also tried your last suggestion at the point when the
        registeris being forwarded to FS but it had no effect

        # Forward REGISTER to Freeswitch
        route[REGFWD] {
        if(!is_method("REGISTER"))
                {
        return;
                }

                #if ( is_present_hf("User-Agent")) {
        *remove_hf("User-Agent");
        append_hf("User-Agent: $ua\r\n");*
                #}

        BR

        Errol


        On Fri, Oct 3, 2014 at 5:08 PM, Rainer Piper
        <rainer.piper@soho-piper.de
        <mailto:rainer.piper@soho-piper.de>> wrote:

            Am 03.10.2014 um 17:52 schrieb Errol Samuels:

...

            Hi Rainer,

            Yes I did try user_agent_header = "User-Agent: $ua";
            but it just passes "$ua" to Freeswitch rather than
            the value of $ua.

            regards,

            Errol



            On Fri, Oct 3, 2014 at 4:32 PM, Rainer Piper
            <rainer.piper@soho-piper.de
            <mailto:rainer.piper@soho-piper.de>> wrote:

                Am 03.10.2014 um 17:04 schrieb Errol Samuels:

...

                Hello All,

                I am using Kamailio in front of Freeswitch and
                Kamailio is handling the registrations then
                forwarding to Freeswitch and everything is
                working for the most part.

                However, there is niggling pain in the neck
                issue where the user's User-Agent shows in
                Freeswitch as kamailio (4.0.6 (x86_64/linux))
                instead of the user's Real User-Agent I am
                trying to get Kamailio to pass the real
                User-Agent of the user without success.

                I am able to set a static User-Agent by doing
                this in the global section.

                *user_agent_header = "User-Agent: We love beer";*

                However, I am unable to set it dynamically for
                example:

                *user_agent_header = "User-Agent: " + $ua;
                *

                *have you tried ...

                **user_agent_header = "User-Agent: $ua";

                ?
                *

            *Have you tried to remove the original hf
            (User-Agent) and set the new one like:

            remove_hf("User-Agent");
            append_hf("User-Agent: $ua\r\n");
            *
            *
            ?

            *

...

                **

...

                *
                *
                With is one Kamailio doesn't even start so my
                syntax is probably wrong.

                I also tried playing around with the textops
                module so I have ran out of ideas

                Any ideas?*

                *
                Thanks in advance.*

                *
                regards,

                Errol
                *
                *
                *

                *
                *


                *




                _______________________________________________
                SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
                sr-users@lists.sip-router.org  <mailto:sr-users@lists.sip-router.org>
                http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

                -- 
                *Rainer Piper*
                Integration engineer
                Koeslinstr. 56
                53123 BONN
                GERMANY
                Phone: +49 228 97167161
                <tel:%2B49%20228%2097167161>
                P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test)
                XMPP: rainer@xmpp.soho-piper.de
                <mailto:rainer@xmpp.soho-piper.de>

                _______________________________________________
                SIP Express Router (SER) and Kamailio (OpenSER)
                - sr-users mailing list
                sr-users@lists.sip-router.org
                <mailto:sr-users@lists.sip-router.org>
                http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users




            _______________________________________________
            SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
            sr-users@lists.sip-router.org  <mailto:sr-users@lists.sip-router.org>
            http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

            -- 
            *Rainer Piper*
            Integration engineer
            Koeslinstr. 56
            53123 BONN
            GERMANY
            Phone: +49 228 97167161 <tel:%2B49%20228%2097167161>
            P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test)
            XMPP: rainer@xmpp.soho-piper.de
            <mailto:rainer@xmpp.soho-piper.de>

            _______________________________________________
            SIP Express Router (SER) and Kamailio (OpenSER) -
            sr-users mailing list
            sr-users@lists.sip-router.org
            <mailto:sr-users@lists.sip-router.org>
            http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users




        _______________________________________________
        SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
        sr-users@lists.sip-router.org  <mailto:sr-users@lists.sip-router.org>
        http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

        -- 
        Daniel-Constantin Mierla
        http://twitter.com/#!/miconda  <http://twitter.com/#%21/miconda>  -http://www.linkedin.com/in/miconda


        _______________________________________________
        SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
        mailing list
        sr-users@lists.sip-router.org
        <mailto:sr-users@lists.sip-router.org>
        http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users



    _______________________________________________
    SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
    mailing list
    sr-users@lists.sip-router.org
    <mailto:sr-users@lists.sip-router.org>
    http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users



_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
list
sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

---

SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

Just found something interesting.

I just commented out the "user_agent_header" in the Global section and restarted kamailio and now the REGISTER message seems to be completely intact but now we have two occurrences of the User-Agent. I tried doing the remove_hf("User-Agent) but it doesn't seem to have any effect.

U 184.xx.xx.208:5060 -> 184.xx.xx.198:6060 REGISTER sip:184.xx.xx.198:6060 SIP/2.0. Via: SIP/2.0/UDP 184.154.215.238;branch=z9hG4bK323.a0452631.0. To: sip:205@pbx.mydomain.com. From: sip:205@pbx.mydomain.com;tag=6f72f76f3402bf7cf11f6917529ca761-b489. CSeq: 10 REGISTER. Call-ID: 6ac0486a044f66e5-62858@184.xx.xx.208. Max-Forwards: 70. Content-Length: 0. *User-Agent: kamailio (4.0.6 (x86_64/linux)).* Contact: sip:205@pbx.mydomain.com;fs_path=sip:184.xx.xx.208:5060. *User-Agent: Yealink SIP-T46G 28.72.0.26.* Expires: 120. .

Any ideas?

BR

Errol

On Wed, Oct 8, 2014 at 6:25 PM, Errol Samuels ewsamuels@gmail.com wrote:

I followed Daniel's instructions and made some progress but not 100% there yet.

-------[Global section]----------

user_agent_header=""

-------[Main Routing Logic]-------

# handle registrations if (is_method("REGISTER")) { $avp(new_user_agent) = $ua; } route(REGISTRAR); . .

# Forward REGISTER to Freeswitch route[REGFWD] {

    if(!is_method("REGISTER"))
    {
            return;
    }
    route(DISPATCH);
    $uac_req(method)="REGISTER";
    $uac_req(ruri)=$du;
    $uac_req(furi)=$fn + "<sip:" + $au + "@" + $ar + ">";
    $uac_req(turi)=$tn + "<sip:" + $au + "@" + $ar + ">";
    $uac_req(hdrs)="Contact: <sip:" + $au + "@"
                            + $ar
                            + ";fs_path=sip:"
                            + $sel(cfg_get.kamailio.bindip)
                            + ":" + $sel(cfg_get.kamailio.bindport)
                            + ">"
                            + "\r\n";
    if($sel(contact.expires) != $null)
            $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +

$sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n"; $uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " + $avp(new_user_agent) + "\r\n"; uac_req_send(); exit; } #!endif

---

Now the correct User-Agent appears in the REGISTER message but in Freeswitch it shows as unknown.

U 184.xx.xx.208:5060 -> 184.xx.xx.198:6060 REGISTER sip:184.x.x.198:6060 SIP/2.0. Via: SIP/2.0/UDP 184.xx.xx.208;branch=z9hG4bKa764.668d6dc7.0. To: sip:1001@pbx.mydomain.com. From: <sip:1001@pbx.mydomain.com

...

;tag=6f72f76f3402bf7cf11f6917529ca761-2ceb.

CSeq: 10 REGISTER. Call-ID: 4570a277563cdffc-61869@184.xx.xx.208. Max-Forwards: 70. Content-Length: 0. . Contact: sip:1001@pbx.mydomain.com;fs_path=sip:184.xx.xx.208:5060. Expires: 120. User-Agent: Yealink SIP-T46G 28.72.0.26. .

---

Got some extra dots in there but not sure why they are there and how they got there. Any ideas? Anything I missed?

BR

Errol

On Wed, Oct 8, 2014 at 12:34 PM, Daniel-Constantin Mierla < miconda@gmail.com> wrote:

...

Perhaps you can get it with adding User-Agent header to $uac_req(hdrs):

$uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " + $ua + "\r\n";

And sent the global parameter:

user_agent_header=""

But then no local generated request has user agent, which probably is ok for you.

There are still ways to use event_route[tm:local-request] to set a custom user agent header, but would require something like:

• add $us in $uac_req(hdrs) as X-UA header
• in event_route[tm:local-request], remove User-Agent and X-UA headers

and add again User-Agent taking the value from X-UA

Cheers, Daniel

On 08/10/14 19:25, Errol Samuels wrote:

I followed Daniel's instructions and made some progress but not 100% there yet.

-------[Global section]----------

user_agent_header=""

-------[Main Routing Logic]-------

# handle registrations if (is_method("REGISTER")) { $avp(new_user_agent) = $ua; } route(REGISTRAR); . .

# Forward REGISTER to Freeswitch route[REGFWD] {

    if(!is_method("REGISTER"))
    {
            return;
    }
    route(DISPATCH);
    $uac_req(method)="REGISTER";
    $uac_req(ruri)=$du;
    $uac_req(furi)=$fn + "<sip:" + $au + "@" + $ar + ">";
    $uac_req(turi)=$tn + "<sip:" + $au + "@" + $ar + ">";
    $uac_req(hdrs)="Contact: <sip:" + $au + "@"
                            + $ar
                            + ";fs_path=sip:"
                            + $sel(cfg_get.kamailio.bindip)
                            + ":" + $sel(cfg_get.kamailio.bindport)
                            + ">"
                            + "\r\n";
    if($sel(contact.expires) != $null)
            $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + 

$sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n"; $uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " + $avp(new_user_agent) + "\r\n"; uac_req_send(); exit; } #!endif

---

Now the correct User-Agent appears in the REGISTER message but in Freeswitch it shows as unknown.

U 184.xx.xx.208:5060 -> 184.xx.xx.198:6060 REGISTER sip:184.x.x.198:6060 SIP/2.0. Via: SIP/2.0/UDP 184.xx.xx.208;branch=z9hG4bKa764.668d6dc7.0. To: <sip:1001@pbx.mydomain.com mailto:sip%3A1001@pbx.mydomain.com>. From: <sip:1001@pbx.mydomain.com mailto:sip%3A1001@pbx.mydomain.com>;tag=6f72f76f3402bf7cf11f6917529ca761-2ceb. CSeq: 10 REGISTER. Call-ID: 4570a277563cdffc-61869@184.xx.xx.208. Max-Forwards: 70. Content-Length: 0. . Contact: <sip:1001@pbx.mydomain.com mailto:sip%3A1001@pbx.mydomain.com;fs_path=sip:184.xx.xx.208:5060>. Expires: 120. User-Agent: Yealink SIP-T46G 28.72.0.26. .

---

Got some extra dots in there but not sure why they are there and how they got there. Any ideas? Anything I missed?

Apparently by setting an empty user-agent header value in kamailio config file results in an empty line in headers, which means end of headers. So it kind of breaks the headers -- I will fix that in kamailio.

A solution for now will be to use:

user_agent_header = "X-Proxy: abc"

Or, in other words, set the value of the parameter to something that doesn't include User-Agent: as header name.

Cheers, Daniel

BR

Errol

On Wed, Oct 8, 2014 at 12:34 PM, Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com> wrote:

Perhaps you can get it with adding User-Agent header to
$uac_req(hdrs):

$uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " + $ua + "\r\n";

And sent the global parameter:

user_agent_header=""

But then no local generated request has user agent, which probably
is ok for you.

There are still ways to use event_route[tm:local-request] to set a
custom user agent header, but would require something like:
- add $us in $uac_req(hdrs) as X-UA header
- in event_route[tm:local-request], remove User-Agent and X-UA
headers and add again User-Agent taking the value from X-UA

Cheers,
Daniel

Hello,

On 09/10/14 13:19, Errol Samuels wrote:

HI Daniel,

Thanks for that.

In my case I would need to use something like:

user_agent_header = "X-Proxy: $ua"

The only purpose of the above line is that Kamailio doesn't add an User-Agent header by itself, but this X-Proxy (which you can change as well).

Then you still add User-Agent in $uac_req(hdrs), but you don't end up with two User-Agent headers anymore.

Hope is more clear now the purpose of X-Proxy header.

Cheers, Daniel

since we don't what to hardcode a specific value which would affect every device that is registering but rather $ua which would set the real UA of the device that is registering at that time.

Does that make sense?

regards,

Errol

On Thu, Oct 9, 2014 at 12:09 PM, Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com> wrote:

On 08/10/14 19:25, Errol Samuels wrote:

...

I followed Daniel's instructions and made some progress but not
100% there yet.

-------[Global section]----------

user_agent_header=""

-------[Main Routing Logic]-------

# handle registrations
        if (is_method("REGISTER"))
        {
        $avp(new_user_agent) = $ua;
        }
        route(REGISTRAR);
.
.

# Forward REGISTER to Freeswitch
route[REGFWD] {

        if(!is_method("REGISTER"))
        {
                return;
        }
        route(DISPATCH);
        $uac_req(method)="REGISTER";
        $uac_req(ruri)=$du;
        $uac_req(furi)=$fn + "<sip:" + $au + "@" + $ar + ">";
        $uac_req(turi)=$tn + "<sip:" + $au + "@" + $ar + ">";
        $uac_req(hdrs)="Contact: <sip:" + $au + "@"
                                + $ar
                                + ";fs_path=sip:"
                                + $sel(cfg_get.kamailio.bindip)
                                + ":" +
$sel(cfg_get.kamailio.bindport)
                                + ">"
                                + "\r\n";
        if($sel(contact.expires) != $null)
                $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +
$sel(contact.expires) + "\r\n";
        else
                $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " +
$hdr(Expires) + "\r\n";
        $uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " +
$avp(new_user_agent) + "\r\n";
        uac_req_send();
        exit;
}
#!endif

------------

Now the correct User-Agent appears in the REGISTER message but in
Freeswitch it shows as unknown.

U 184.xx.xx.208:5060 -> 184.xx.xx.198:6060
REGISTER sip:184.x.x.198:6060 SIP/2.0.
Via: SIP/2.0/UDP 184.xx.xx.208;branch=z9hG4bKa764.668d6dc7.0.
To: <sip:1001@pbx.mydomain.com <mailto:sip%3A1001@pbx.mydomain.com>>.
From: <sip:1001@pbx.mydomain.com
<mailto:sip%3A1001@pbx.mydomain.com>>;tag=6f72f76f3402bf7cf11f6917529ca761-2ceb.
CSeq: 10 REGISTER.
Call-ID: 4570a277563cdffc-61869@184.xx.xx.208
<mailto:4570a277563cdffc-61869@184.xx.xx.208>.
Max-Forwards: 70.
Content-Length: 0.
.
Contact: <sip:1001@pbx.mydomain.com
<mailto:sip%3A1001@pbx.mydomain.com>;fs_path=sip:184.xx.xx.208:5060>.
Expires: 120.
User-Agent: Yealink SIP-T46G 28.72.0.26.
.
----------------

Got some extra dots in there but not sure why they are there and
how they got there.
Any ideas? Anything I missed?

Apparently by setting an empty user-agent header value in kamailio
config file results in an empty line in headers, which means end
of headers. So it kind of breaks the headers -- I will fix that in
kamailio.

A solution for now will be to use:

user_agent_header = "X-Proxy: abc"

Or, in other words, set the value of the parameter to something
that doesn't include User-Agent: as header name.

Cheers,
Daniel

...

BR

Errol



On Wed, Oct 8, 2014 at 12:34 PM, Daniel-Constantin Mierla
<miconda@gmail.com <mailto:miconda@gmail.com>> wrote:

    Perhaps you can get it with adding User-Agent header to
    $uac_req(hdrs):

    $uac_req(hdrs)= $uac_req(hdrs) + "User-Agent: " + $ua + "\r\n";

    And sent the global parameter:

    user_agent_header=""

    But then no local generated request has user agent, which
    probably is ok for you.

    There are still ways to use event_route[tm:local-request] to
    set a custom user agent header, but would require something like:
    - add $us in $uac_req(hdrs) as X-UA header
    - in event_route[tm:local-request], remove User-Agent and
    X-UA headers and add again User-Agent taking the value from X-UA

    Cheers,
    Daniel

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda  <http://twitter.com/#%21/miconda>  -http://www.linkedin.com/in/miconda