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How to limit maximum number of calls

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Austin Einter

28 Oct 2011 28 Oct '11

8:01 a.m.

Hi I am running kamailio proxy (1.5) as an intermediate proxy, where all my SIP signalling packets are passing through. I want to limit maximum number of calls kamailio proxy server can handle at a time. How can I do this, please give me some pointer in this regard. Regards Austin

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Austin Einter

28 Oct 28 Oct

8:03 a.m.

One correction. I am using Kamailio 3.1.5. On Fri, Oct 28, 2011 at 8:31 AM, Austin Einter <austin.einter(a)gmail.com>wrote;wrote:

Hi I am running kamailio proxy (1.5) as an intermediate proxy, where all my SIP signalling packets are passing through. I want to limit maximum number of calls kamailio proxy server can handle at a time. How can I do this, please give me some pointer in this regard. Regards Austin

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Alex Balashov

8:17 a.m.

Investigate the "dialog" module. -- This message was painstakingly thumbed out on my mobile, so apologies for brevity, errors, and general sloppiness. Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/ On Oct 27, 2011, at 9:01 PM, Austin Einter <austin.einter(a)gmail.com> wrote:

Hi I am running kamailio proxy (1.5) as an intermediate proxy, where all my SIP signalling packets are passing through. I want to limit maximum number of calls kamailio proxy server can handle at a time. How can I do this, please give me some pointer in this regard. Regards Austin _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

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Austin Einter

8:26 a.m.

Thanks Alex Do you mean that I need to modify kamailio.cfg to have max calls limitation? Regards Kamal On Fri, Oct 28, 2011 at 8:47 AM, Alex Balashov <abalashov(a)evaristesys.com>wrote;wrote:

Investigate the "dialog" module. -- This message was painstakingly thumbed out on my mobile, so apologies for brevity, errors, and general sloppiness. Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/ On Oct 27, 2011, at 9:01 PM, Austin Einter <austin.einter(a)gmail.com> wrote:

Hi I am running kamailio proxy (1.5) as an intermediate proxy, where all my

SIP signalling packets are passing through.

I want to limit maximum number of calls kamailio proxy server can handle

at a time.

How can I do this, please give me some pointer in this regard. Regards Austin _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)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(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

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Alex Balashov

9:23 a.m.

On 10/27/2011 11:26 PM, Austin Einter wrote:

Do you mean that I need to modify kamailio.cfg to have max calls limitation?

Quitely so. -- Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/

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Austin Einter

10:29 a.m.

Hi I did change kamailio.cfg as below and getting some error. *//Loaded dialog module* *loadmodule "dialog.so"* My route block looks as below. *# Main SIP request routing logic # - processing of any incoming SIP request starts with this route route {* * # per request initial checks route(REQINIT); setflag(FLT_NATS); # NAT detection route(NAT);* * # handle requests within SIP dialogs route(WITHINDLG);* * if (is_method("INVITE")) { if($DLG_count > 1) { sl_send_reply("503","RESOURCE UNAVAILABLE"); exit; } } * I added the if block shown in red color. When I start the kamailio proxy I get below error. [root@www1 kamailio]# [root@www1 kamailio]# kamailio -T -E -n 1 -l 174.37.8.178 -l 127.0.0.1 -W epoll_et -l udp:174.37.8.178:26588 loading modules under /usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/ Listening on udp: 174.37.8.178:26588 udp: 127.0.0.1:26588 Aliases: udp: localhost:26588 udp: localhost.localdomain:26588 udp: 174.37.8.178-static.reverse.softlayer.com:26588 0(26959) INFO: usrloc [hslot.c:53]: locks array size 512 0(26959) ERROR: dialog [dialog.c:435]: no dlg flag set!! 0(26959) ERROR: <core> [sr_module.c:875]: init_mod(): Error while initializing module dialog (/usr/local/lib/kamailio/modules_k/dialog.so) ERROR: error while initializing modules [root@www1 kamailio]# [root@www1 kamailio]# It looks , dialog module facing problem during initialization. I am bit new to this, not getting any clue . Kindly let me know whats going wrong. Thanks Austin On Fri, Oct 28, 2011 at 9:53 AM, Alex Balashov <abalashov(a)evaristesys.com>wrote;wrote:

On 10/27/2011 11:26 PM, Austin Einter wrote: Do you mean that I need to modify kamailio.cfg to have max calls

limitation?

Quitely so. -- Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/ ______________________________**_________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**users<http:/…

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Timo Reimann

2:36 p.m.

Hey, Am 28.10.2011 um 07:29 schrieb Austin Einter:

I did change kamailio.cfg as below and getting some error.

[snip]

When I start the kamailio proxy I get below error. [root@www1 kamailio]# [root@www1 kamailio]# kamailio -T -E -n 1 -l 174.37.8.178 -l 127.0.0.1 -W epoll_et -l udp:174.37.8.178:26588 loading modules under /usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/ Listening on udp: 174.37.8.178:26588 udp: 127.0.0.1:26588 Aliases: udp: localhost:26588 udp: localhost.localdomain:26588 udp: 174.37.8.178-static.reverse.softlayer.com:26588 0(26959) INFO: usrloc [hslot.c:53]: locks array size 512 0(26959) ERROR: dialog [dialog.c:435]: no dlg flag set!! 0(26959) ERROR: <core> [sr_module.c:875]: init_mod(): Error while initializing module dialog (/usr/local/lib/kamailio/modules_k/dialog.so) ERROR: error while initializing modules [root@www1 kamailio]# [root@www1 kamailio]# It looks , dialog module facing problem during initialization. I am bit new to this, not getting any clue . Kindly let me know whats going wrong.

"no dlg flag set" Using the dialog module requires either one of the following for each dialog you wish to track: - Set a certain flag. This tells the dialog module to start tracking. It only works for INVITE requests though and requires specifying the desired dialog flag as a modparam. - Call dlg_manage(). This also tells the dialog module to start tracking but may be called from non-INVITE requests too (at least theoretically; I never tried). Unfortunately, the wiki docs regarding the dialog module seem to be broken right now, so I cannot point you at the specific syntax. HTH, --Timo

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Jason Penton

2:54 p.m.

Hey, U can use these docs in the meantime - http://kamailio.org/docs/modules/stable/modules_k/dialog.html Cheers Jason On Fri, Oct 28, 2011 at 11:36 AM, Timo Reimann <sr(a)foo-lounge.de> wrote:

Hey, Am 28.10.2011 um 07:29 schrieb Austin Einter:

I did change kamailio.cfg as below and getting some error.

[snip]

When I start the kamailio proxy I get below error. [root@www1 kamailio]# [root@www1 kamailio]# kamailio -T -E -n 1 -l 174.37.8.178 -l 127.0.0.1

-W epoll_et -l udp:174.37.8.178:26588

loading modules under

/usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/

Listening on udp: 174.37.8.178:26588 udp: 127.0.0.1:26588 Aliases: udp: localhost:26588 udp: localhost.localdomain:26588 udp: 174.37.8.178-static.reverse.softlayer.com:26588 0(26959) INFO: usrloc [hslot.c:53]: locks array size 512 0(26959) ERROR: dialog [dialog.c:435]: no dlg flag set!! 0(26959) ERROR: <core> [sr_module.c:875]: init_mod(): Error while

initializing module dialog (/usr/local/lib/kamailio/modules_k/dialog.so)

ERROR: error while initializing modules [root@www1 kamailio]# [root@www1 kamailio]# It looks , dialog module facing problem during initialization. I am bit new to this, not getting any clue . Kindly let me know whats

going wrong. "no dlg flag set" Using the dialog module requires either one of the following for each dialog you wish to track: - Set a certain flag. This tells the dialog module to start tracking. It only works for INVITE requests though and requires specifying the desired dialog flag as a modparam. - Call dlg_manage(). This also tells the dialog module to start tracking but may be called from non-INVITE requests too (at least theoretically; I never tried). Unfortunately, the wiki docs regarding the dialog module seem to be broken right now, so I cannot point you at the specific syntax. HTH, --Timo _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

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participants (4)

Alex Balashov
Austin Einter
Jason Penton
Timo Reimann