01-18-2018 04:59 AM - edited 03-17-2019 11:59 AM
Hi,
we use since 6 Years a Faxserver (Rightfax 9.4 FP1SP4 with Brooktrout SR140 SIP Call Control Module)
Incoming Faxes we send from Cisco Router 2921 via SIP-Trunk directly to the Faxserver.
Site 1 : PSTN --- C2921_Site1 ---- SIP ---- Faxserver
Siter 2 : PSTN ---- C2921_Site2 ------ SIP ------ Faxserver (same Server as for Site1)
Siter3 ....
We also have a central CUCM-Cluster (11.5) which als works with the Routers on the Sites (H323)
On the Cisco Router 2921 we use 15.4.3M4
Last December we updated one Site-Router to 15.5.3M6a
After the upgrade the incoming Faxes stopped to work, communication with CUCM Cluster works normally ...
After downgrading the Site Router to 15.4.3M4 the Incoming Faxes worked normal again.
We did an upgrade to Cisco IOS 15.6.2T2 and we saw that the Incoming Faxes worked.
We test with 2 Site Routers - Both Routers had Problems with 15.5.x and Fax
Seems there is a problem with Cisco 15.5.3M6a ???
.
1.IOS 15.5.3M6a: On the Faxserver we receive SIP Inivte but Faxserver does not answer
...
Cisco Router Faxserver
2. IOS SW 15.6.2T3 : We see the sip-invite and the answer from Faxserver ...
Cisco Router Faxserver
The only thing we see -
15.5.x send sip-invite with Port 49xxx
15.6.x send sip-invite with Port 61xxx
Does anybody have any idea about our "issue" ?
regards
Alex
Solved! Go to Solution.
02-12-2018 05:24 AM
Hi,
we fixed the Problem
the router sent an sip invite with Date: ... MET ...
...
Sent:
INVITE sip:+xxxx@xxxx:5060 SIP/2.0
Via: SIP/2.0/UDP xxxx:5060;branch=z9hG4bK122053
Remote-Party-ID: <sip:xxxxx@xxxxx>;party=calling;screen=yes;privacy=off
From: <sip:xxxxxxx@xxxxx>;tag=5C309158-2159
To: <sip:xxxxxxx@xxxxxxx>
Date: Thu, 08 Feb 2018 13:05:18 MET
Call-ID: 29D74BC3-BFF11E8-A1CAB27E-79793574@xxxxxxx
...
there is a known cisco bug in 15.5.3M6
we created a sip Profile wich modifes the Timezone (MET will be replaced/changed to GMT)
and after that Change the Fax works as expected .
!
voice class sip-profiles 111
respnse ANY sip-Header Date modify "MET" "GMT"
request ANY sip-Header Date modiry "MET" "GMT"
!
voice Service voip
sip
sip-profiles 111
!
!
regards
Alex
here the Cisco Bug
CSCvf07153
01-18-2018 05:11 AM
02-12-2018 05:24 AM
Hi,
we fixed the Problem
the router sent an sip invite with Date: ... MET ...
...
Sent:
INVITE sip:+xxxx@xxxx:5060 SIP/2.0
Via: SIP/2.0/UDP xxxx:5060;branch=z9hG4bK122053
Remote-Party-ID: <sip:xxxxx@xxxxx>;party=calling;screen=yes;privacy=off
From: <sip:xxxxxxx@xxxxx>;tag=5C309158-2159
To: <sip:xxxxxxx@xxxxxxx>
Date: Thu, 08 Feb 2018 13:05:18 MET
Call-ID: 29D74BC3-BFF11E8-A1CAB27E-79793574@xxxxxxx
...
there is a known cisco bug in 15.5.3M6
we created a sip Profile wich modifes the Timezone (MET will be replaced/changed to GMT)
and after that Change the Fax works as expected .
!
voice class sip-profiles 111
respnse ANY sip-Header Date modify "MET" "GMT"
request ANY sip-Header Date modiry "MET" "GMT"
!
voice Service voip
sip
sip-profiles 111
!
!
regards
Alex
here the Cisco Bug
CSCvf07153
03-27-2019 01:22 PM
Thank you so much! I was having this same issue with one of our phone systems.
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