Hi Andrei,
Do you use TH without dialog support right ? IF so, try with dialog
support (just create the dialog before doing TH) - this will shorten the
"did" param A LOT and maybe Cisco will not discard it.
Also, do you obfuscate the Call-ID too ? if not, with dialog support,
you may try to use dlg_match_mode [1] with 1 (DID_FALLBACK) to try a SIP
matching if the DID param is matching
[1]
https://opensips.org/html/docs/modules/2.4.x/dialog.html#param_dlg_match_mode
Regards
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Bootcamp Pre-Registration
https://opensips.org/training/OpenSIPS_Bootcamp/
On 11/8/19 4:01 PM, Андрей Неважно via Users wrote:
Hello guys! Sorry for desturbing you, but maybe someone know, how i
can fix this problem on Cisco SIP phone 7940:
1) Cisco SIP phone received 200 ok with Contact like:
Contact:
<sip:1.1.1.1;did=TUFgRzw2JH97fHt4eXp3en53bRR0dXdtfnt1b3pxYVDJhjkfhhsdfJBNVsadgdsfdhgewh->
2) Cisco SIP phone send ACK with R-URI like:
Request-Line: ACK sip:1.1.1.1:5060 SIP/2.0
Parameter "did" lost in R-URI, and ACK can not pass
topology_hiding_match() properly.
Maybe anybody know how this problem can fixed from phone side?
Many thanks!
--
Andrei
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