8 Nov
2018
8 Nov
'18
12:01 a.m.
For anyone interested:
server_header="Server: Mitel Border GW"
This effectively forges the header to the one from the firmware.
There are many other:
Aastra 800
OpenCom
Aastra 400
MiVoice Office 400
Aastra MX-ONE
Forum 5
Telepo
Mitel-5000-ICP
Mitel Border GW
Mitel-3300-ICP
Source:
- binwalk -e 6930.st
- jffs2-root/fs_1/bin/linemgrSip will be of interest
security through obscurity
Kevin
Am Mi., 7. Nov. 2018 um 15:06 Uhr schrieb Kevin Olbrich <ko(a)sv01.de>de>:
Hi!
I have found the problem. It is indeed desired behaviour!
Current FW is 5.1.0. I have now browsed the realease notes from latest to
oldest and release 5.0.0 (first for Mitel 6900 series) states, that this
phone only works, if registered to Mitel call servers.
This remark is only listet there and in no other location. Seems like all
who buy this phone are currently out of luck.
The phone does not detect a Mitel call server and throws an internal 606
and disables the line until reboot.
Source: Page 14 of Mitel 6800/6900 Series SIP Phones 5.0.0 Release Notes
I never had such a case, where a vendor locks his phone to it's own
platform. In particular does not communicate this change.
Thanks for your help while debugging this. I have learned a lot during
debug.
Kind regards
Kevin
Am Di., 6. Nov. 2018 um 23:30 Uhr schrieb Sergiu Pojoga <pojogas(a)gmail.com
:
Hardly a guess, just experience, lol
You're welcome.
On Tue, Nov 6, 2018 at 5:24 PM Kevin Olbrich <ko(a)sv01.de> wrote:
Am Di., 6. Nov. 2018 um 23:09 Uhr schrieb Sergiu
Pojoga <
pojogas(a)gmail.com>gt;:
Since you are using Kamailio for auth/usrloc, sending its REGISTER with
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
I would assume the phone sends multiple REGISTER
requests with same
CallID, one or more of which has an expire=0, as a NAT traversal technique
trying to discover its public IP at first. May be it doesn't do it very
well.
I have checked again and indeed, correct guess!
expire=0 would indicate that the Kamailio contact
has expired (probably
after such a request was received from the phone). Try checking it with
'kamctl ul show'
Correct as well, endpoint is not listed there.
I will check if I can get debug from the phone.
Thank you very much!
Kevin
On Tue, Nov 6, 2018 at 4:57 PM Henning Westerholt
<hw(a)kamailio.org>
wrote:
> Am Dienstag, 6. November 2018, 22:50:54 CET schrieb Kevin Olbrich:
> > Am Di., 6. Nov. 2018 um 22:40 Uhr schrieb Sergiu Pojoga <
> pojogas(a)gmail.com>gt;:
> > > It's not clear what kamailio/asterisk integration method you are
> using.
> > > Looking at the 2 provided messages - the 2nd one is not a relay of
> the 1st
> > > one.
> >
> > I might have matched the wrong transaction. I use HEP/HOMER to
> observe
> > communication and Kamailio starts a new flow (=Call-Id) to asterisk
> (this
> > message is no coming from the phone).
> >
> > > handle authentication/usrloc in Kamailio?
> > > or
> > > using PATH extension?
> >
> > I do auth + usrloc in Kamailio, no PATH.
> >
> > Maybe the Kamailio debug would lead me to the problem but verbose
> level 3
> > has too much info.
>
> Hi Kevin,
>
> you could control the time when the specific not-working phone send a
> REGISTER. Then you can enable the debugging for a few seconds during
> this
> time, and then deactivate it again. This should work even on a
> production
> server. Debugging it on a test server is of course an even better way.
>
> Best regards,
>
> Henning
>
> --
> Henning Westerholt - https://skalatan.de/blog/
> Kamailio services - https://skalatan.de/services
> Kamailio security assessment - https://skalatan.de/de/assessment
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users(a)lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users