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9 Replies Last post: Oct 1, 2009 4:28 PM by nate187  
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nate187
27 posts since
Sep 29, 2009

Sep 29, 2009 5:31 PM

Inbound call problem

So I've got OpenSBC configured and working with upper registration and can make outgoing calls no problem. The problem is on inbound calls when the SBC sends an invite to the UA. The UA is ignoring the invite, since the "TO URI" has <sip:1235551212@192.168.0.5:5060> with its ip address instead of the domain.

Since the UA is registering 1235551212 at sbc dot mydomain dot com, its ignoring calls to 1235551212@192.168.0.5. It appears to me when the SBC sends the invite to the UA, its sending it with the binding address instead of the AOR.

Is there any way to change this behavior?
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joegen
539 posts since
Apr 28, 2007
1. Sep 29, 2009 8:25 PM in response to: nate187
Re: Inbound call problem
OpenSBC should be relayig the To URI sent by the caller untouched. Can you back this up with some logs?
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nate187
27 posts since
Sep 29, 2009
2. Oct 1, 2009 4:34 PM in response to: nate187
Re: Inbound call problem
Attached is a full log of registration and an inbound call.
My switch is 10.0.0.200 (switch.mydomain.com)
OpenSBC is 10.0.0.100 (sbc.mydomain.com)
Router is 10.100.0.20
The phone is 192.168.69.238

2009/09/30 07:57:58.519 DBG: [CID=0xcb140f65] REGISTER sip:sbc.mydomain.com:5060 SIP/2.0
2009/09/30 07:57:58.519 DBG: [CID=0xcb140f65] From: test ;tag=2d68f1c0fafa990
2009/09/30 07:57:58.519 DBG: [CID=0xcb140f65] To: test <sip:sip1112221234 at sbc dot mydomain dot com:5060>

2009/09/30 07:58:44.088 DBG: [CID=0x5729839f] INVITE sip:x-reg-id-sip%3Asip1112221234%40192.168.69.238%3A5060%3Bsend-addr%3D64.82.228.20%3A5060@10.0.0.100:5062 SIP/2.0
2009/09/30 07:58:44.088 DBG: [CID=0x5729839f] From: Anonymous <sip:anonymous at sbc dot mydomain dot com;transport=udp>;tag=switch.mydomain.com+1+267c0c+15e9f1e
2009/09/30 07:58:44.088 DBG: [CID=0x5729839f] To: <sip:sip1112221234 at sbc dot mydomain dot com>

2009/09/30 07:58:44.101 DBG: [CID=0x5729839f] INVITE sip:sip1112221234@192.168.69.238:5060 SIP/2.0
2009/09/30 07:58:44.101 DBG: [CID=0x5729839f] From: Anonymous <sip:anonymous at sbc dot mydomain dot com;transport=udp>;tag=switch.mydomain.com+1+267c0c+15e9f1e
2009/09/30 07:58:44.101 DBG: [CID=0x5729839f] To: <sip:sip1112221234@192.168.69.238:5060>
Attachments:
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joegen
539 posts since
Apr 28, 2007
3. Sep 30, 2009 10:49 PM in response to: nate187
Re: Inbound call problem
In General-Parameters there is a flag that set Rewrite-To-URI. Set that to false and see if that solves your problem.
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nate187
27 posts since
Sep 29, 2009
4. Oct 1, 2009 10:22 AM in response to: nate187
Re: Inbound call problem
I've tried changing B2BUA-Routes Rewrite-TO-URI to true and false, but URI on the invite to the phone doesn't change.

Either way it send it as To: sip:sip1112221234@192.168.69.238:5060 instead of To: sip:sip1112221234 at sbc dot mydomain dot com:5060

I'm using Unix Linux Version 1.1.5-108
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nate187
27 posts since
Sep 29, 2009
5. Oct 1, 2009 10:30 AM in response to: nate187
Re: Inbound call problem
I manually added that option to the general-parameters section of OpenSBC.ini and its now sending the domain instead of ip on the invite.
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cbntech
18 posts since
Aug 13, 2009
6. Oct 1, 2009 2:48 PM in response to: nate187
Re: Inbound call problem
Please Nate187 can you share how you did it in more details ? I have been having the same issue for months, still no go ... Thank you!
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nate187
27 posts since
Sep 29, 2009
7. Oct 1, 2009 3:14 PM in response to: nate187
Re: Inbound call problem
I frist added the option to general parameters, but web interface doesn't list that option, so I don't know if thats even valid. I took out that line to be sure.

What made it work was to un-check Rewrite-TO-URI in the B2BUA-Routes section.
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cbntech
18 posts since
Aug 13, 2009
8. Oct 1, 2009 3:40 PM in response to: nate187
Re: Inbound call problem

Thanks for such a quick reply! Unchecking that option did it for me too, looks like it take a little while for the OSBC server to actually start implementing it. Now inbound calls work, just have to figure out why I have one way audio .....

Something weird though, I read somewhere that disbling NAT on the upper registrar helped, but I have the opposite here. When I disable NAT in asterisk, inbound does not work ....

Again thank you, I am finall seeing the end of the tunnel, have been on that for 3 months now :-)

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nate187
27 posts since
Sep 29, 2009
9. Oct 1, 2009 10:17 PM in response to: cbntech
Re: Inbound call problem
Now I've got another problem - I'll make a new thread, since its unrelated


Thanks for the help on this one!

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