Re: [OpenSIPS-Users] ACK not forwarding
hallo,
I'm ahmed and I'm working on opensips.
Actually, I sow your questions on the forum and I have a problem that I
think you have the answer.
Actually, I did a simple senario to route calls between users registered in
opensips server, but when it comes to real IP phones( that each one has its
own ip address ), it doasn't work. ( trunk ).
for example: my opensips address: 10.42.15.18
and my IP phone address is : 10.42.13.82
it is all about sip trunk I think.
I am blocked in this part and searched a lot for a solution, maybe there is
a detail that I have missed.
which function is responsible for handling requests and responses with an IP
phone ?
I used this code :
account only INVITEs
if ($rU=="49894614950666"){
$rU = $tU;
rewritehostport("10.42.13.82:5060");
$du = "sip:49894614950666@10.42.13.82;user=phone";
t_relay();
xlog("reference to URI of 'To' header >
$tu");
xlog("reference to domain in URI of 'TO' header
> $td");
# route the call out based on RURI
route(3);
}
route[3]{
seturi("sip:49894614950666@10.42.13.82;user=phone");
$du = "sip:49894614950666@10.42.13.82;user=phone";
#replace the domain part of RURI to point to test8s2 or test8s
rewriteuri("sip:49894614950666@10.42.13.82;user=phone");
xlog("route 2 : forwarding to $tU \n $ruri \n");
xlog("Received $rm from $fu (callid: $ci)\n");
forward();
#if(nat_uac_test("8")) {
#xlog("We have incoming SDP, let's fix if it's behind NAT\n");
#fix_nated_sdp("2");
# }
if (is_method("INVITE")) {
t_on_branch("2");
t_on_reply("2");
t_on_failure("1");
}
# if (isflagset(10)) {
#add_rr_param(";nat=yes");
#}
if (!t_relay()) {
sl_reply_error();
};
exit;
}
When calling from a soft phone the requested number, the server sends a
request INVITE as follow :
INVITE sip:49894614950666@10.42.15.18;transport=TCP SIP/2.0
Via: SIP/2.0/TCP 10.42.15.12:5060;branch=z9hG4bK-524287-1---dedd27ee7475c0f1
Max-Forwards: 70
Contact:
To:
From: ;tag=2f025b44
Call-ID: tdO14DnlADH9Okx6Sr0p4A..
CSeq: 1 INVITE
Content-Type: application/sdp
User-Agent: Z 3.15.40006 rv2.8.20
Allow-Events: presence, kpml, talk
Content-Length: 237
and the target VM resend an INVITE request to Opensips server, but then, the
server start to send to himself messages and not responding the target
machine...
I wonder that the "To" field in the INVITE message is false !
opensips only sends a invite to the IP phone and ignore messages coming from
it, does not respond after with any ack.
what should I add or modify ?
thank you a lot.
--
Sent from:
http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html
___
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
Hi Alex, Yes, it is their bug and they should fix it. But if the UAC makes the call to PSTN, and my proxy closes the CDR but is not able to push forward the BYE to GW, the call will remain active on the GW side and it will bill me, as service provider - now, when the carrier will ask me to pay for that long zombie call, can I invoke "it is bad SIP that really should't be fixed " ?? :) As I see it, the service provider (with the opensips proxy) should do whatever it take to protect the service/business, even if that means fixing somebody's else crap ;) Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer http://www.opensips-solutions.com On 04.02.2016 18:09, Alex Balashov wrote: On 02/04/2016 11:08 AM, Alex Balashov wrote: Bogdan, That's interesting. I had no idea OpenSIPS had a module specifically devoted to fixing bad SIP that really shouldn't be fixed. :-) s/a module/dialog module functionality/ ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
Alax you're correct, but not all sip device manufacturers really know the sip rfc etc, soft phones and phone manufacturers are better, but in my case its a SIP door bell, when there is only one sip server as is the case with most of these units that they are connected to a small business PBX like FreePBX it works, the problem starts when there is more than one server in the path, I spoke their tech support and its been 2 days and they still don't have a fix yet, so its nice to have a workaround for cases like these. On Thu, Feb 4, 2016 at 5:09 PM, Alex Balashov wrote: > On 02/04/2016 11:08 AM, Alex Balashov wrote: > > Bogdan, >> >> That's interesting. I had no idea OpenSIPS had a module specifically >> devoted to fixing bad SIP that really shouldn't be fixed. :-) >> > > s/a module/dialog module functionality/ > > > -- > Alex Balashov | Principal | Evariste Systems LLC > 303 Perimeter Center North, Suite 300 > Atlanta, GA 30346 > United States > > Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) > Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ > > ___ > Users mailing list > Users@lists.opensips.org > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
On 02/04/2016 11:08 AM, Alex Balashov wrote: Bogdan, That's interesting. I had no idea OpenSIPS had a module specifically devoted to fixing bad SIP that really shouldn't be fixed. :-) s/a module/dialog module functionality/ -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
Bogdan, That's interesting. I had no idea OpenSIPS had a module specifically devoted to fixing bad SIP that really shouldn't be fixed. :-) -- Alex -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
Hi Schneur,
Yes, you were, still the right approach, as Alex mentioned, is to report
and have the bug fixed in the device.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 03.02.2016 22:18, Schneur Rosenberg wrote:
Thanks, so I was correct in my original question that the dialog
module can help me :-)
On Wed, Feb 3, 2016 at 6:01 PM, Bogdan-Andrei Iancu
mailto:bog...@opensips.org>> wrote:
Hi Schneur,
Well, there is a reasonable way to fix it on your side - use the
dialog module (have dialog state) and for sequential requests
(like the ACK in question) use the validate_dialog() -
http://www.opensips.org/html/docs/modules/2.1.x/dialog.html#id295536
- to find out the broken RURI/Routes/Contact and have them fixed
via fix_route_dialog() function -
http://www.opensips.org/html/docs/modules/2.1.x/dialog.html#id295624
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 02.02.2016 20:34, Schneur Rosenberg wrote:
Thanks I will open a ticket with the hardware manufacturer, lets
hope they will fix it
On Tue, Feb 2, 2016 at 8:25 PM, Alex Balashov
mailto:abalas...@evaristesys.com>> wrote:
The RURI of an end-to-end ACK should always be equal to the
remote dialog target, i.e. in this case the Contact URI in
the 200 OK.
If the RURI of the ACK is not equal to the remote target,
it's not a properly formed ACK. And certainly, it should not
point to the OpenSIPS proxy itself. There's no reasonable way
to work around it: the UA in question needs to be fixed.
--
Alex Balashov | Principal | Evariste Systems LLC
303 Perimeter Center North, Suite 300
Atlanta, GA 30346
United States
Tel: +1-800-250-5920 (toll-free) /
+1-678-954-0671 (direct)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
Sent from my BlackBerry.
Original Message
From: Schneur Rosenberg
Sent: Tuesday, February 2, 2016 13:22
To: OpenSIPS users mailling list
Reply To: OpenSIPS users mailling list
Subject: [OpenSIPS-Users] ACK not forwarding
___
Users mailing list
Users@lists.opensips.org <mailto:Users@lists.opensips.org>
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
___
Users mailing list
Users@lists.opensips.org <mailto:Users@lists.opensips.org>
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
___
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
Hi Schneur, Well, there is a reasonable way to fix it on your side - use the dialog module (have dialog state) and for sequential requests (like the ACK in question) use the validate_dialog() - http://www.opensips.org/html/docs/modules/2.1.x/dialog.html#id295536 - to find out the broken RURI/Routes/Contact and have them fixed via fix_route_dialog() function - http://www.opensips.org/html/docs/modules/2.1.x/dialog.html#id295624 Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer http://www.opensips-solutions.com On 02.02.2016 20:34, Schneur Rosenberg wrote: Thanks I will open a ticket with the hardware manufacturer, lets hope they will fix it On Tue, Feb 2, 2016 at 8:25 PM, Alex Balashov mailto:abalas...@evaristesys.com>> wrote: The RURI of an end-to-end ACK should always be equal to the remote dialog target, i.e. in this case the Contact URI in the 200 OK. If the RURI of the ACK is not equal to the remote target, it's not a properly formed ACK. And certainly, it should not point to the OpenSIPS proxy itself. There's no reasonable way to work around it: the UA in question needs to be fixed. -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent from my BlackBerry. Original Message From: Schneur Rosenberg Sent: Tuesday, February 2, 2016 13:22 To: OpenSIPS users mailling list Reply To: OpenSIPS users mailling list Subject: [OpenSIPS-Users] ACK not forwarding ___ Users mailing list Users@lists.opensips.org <mailto:Users@lists.opensips.org> http://lists.opensips.org/cgi-bin/mailman/listinfo/users ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
Thanks I will open a ticket with the hardware manufacturer, lets hope they will fix it On Tue, Feb 2, 2016 at 8:25 PM, Alex Balashov wrote: > The RURI of an end-to-end ACK should always be equal to the remote dialog > target, i.e. in this case the Contact URI in the 200 OK. > > If the RURI of the ACK is not equal to the remote target, it's not a > properly formed ACK. And certainly, it should not point to the OpenSIPS > proxy itself. There's no reasonable way to work around it: the UA in > question needs to be fixed. > > -- > Alex Balashov | Principal | Evariste Systems LLC > 303 Perimeter Center North, Suite 300 > Atlanta, GA 30346 > United States > > Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) > Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ > > Sent from my BlackBerry. > Original Message > From: Schneur Rosenberg > Sent: Tuesday, February 2, 2016 13:22 > To: OpenSIPS users mailling list > Reply To: OpenSIPS users mailling list > Subject: [OpenSIPS-Users] ACK not forwarding > > > ___ > Users mailing list > Users@lists.opensips.org > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
Re: [OpenSIPS-Users] ACK not forwarding
The RURI of an end-to-end ACK should always be equal to the remote dialog target, i.e. in this case the Contact URI in the 200 OK. If the RURI of the ACK is not equal to the remote target, it's not a properly formed ACK. And certainly, it should not point to the OpenSIPS proxy itself. There's no reasonable way to work around it: the UA in question needs to be fixed. -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent from my BlackBerry. Original Message From: Schneur Rosenberg Sent: Tuesday, February 2, 2016 13:22 To: OpenSIPS users mailling list Reply To: OpenSIPS users mailling list Subject: [OpenSIPS-Users] ACK not forwarding ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
[OpenSIPS-Users] ACK not forwarding
My ACK coming from this device does not get forwarded to its designated destination, I see that the RURI is to my OpenSIPS server even though the contact has been rewritten in the OK, is that the reason the OpenSIPS thinks its for himself? if yes how can I workaround the issue, perhaps with dialog module etc? Below please find the OK and the ACK, it has a Record route and proper contact. U 104.131.18.123:5060 -> 80.64.118.39:64308 SIP/2.0 200 OK. Via: SIP/2.0/UDP 80.64.118.39:64308 ;rport=64308;received=80.64.118.39;branch=z9hG4bK-1131176229. Record-Route: . From: SORSTestDoor1 ;tag=628175012. To: ;tag=as3223454f. Call-ID: 10007@192.168.1.8. CSeq: 1018 INVITE. Server: SIP Server 9.21/CS. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Contact: . Content-Type: application/sdp. Content-Length: 236. U 88.64.118.39:64308 -> 104.131.18.123:5060 ACK sip:2...@sip.sipserver.info SIP/2.0. Via: SIP/2.0/UDP 80.64.118.39:64308;branch=z9hG4bK-608413784. Route: . From: SORSTestDoor1 ;tag=628175012. To: ;tag=as3223454f. Call-ID: 10007@192.168.1.8. User-Agent: Valcom xp1.50.14-10-14-14. CSeq: 1018 ACK. Content-Length: 0. ___ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
