About Stephan Engebretsen

Stephan Engebretsen · 02-13-2014

We're experiencing a problem with Cisco SPA504 and SPA525, which causes SPA phones to keep ringing, when a call is initiated and cancelled directly after. The problem is described in the SIP flow chart below, one working flow and one which causes pro...

Stephan Engebretsen · 02-03-2015

I ran a test with 7.5.6a, and the issue is still there, yes.I forgot to update this thread last time, but the bugfix we got from Cisco, which was based on 7.5.5, was working as intended.

Stephan Engebretsen · 02-18-2014

Thank you for your feedback.I do not have the correct permission to view the bug.I'll try the firmware out immediately, once I get it.Thank you.

Stephan Engebretsen · 02-14-2014

Posting an update on this matter, on behalf of my co-worker, Eivind Jonassen.We reported the issue to Cisco, and have now gotten a patched firmware based on version 7.5.1a, which solves this problem.They also made sure that the bug would be fixed in ...

Stephan Engebretsen · 02-14-2014

Yes, there is a reason header present in the cancel request. The reason header is, however, correct according to the SIP RFC. We use kamailio for SIP routing, not proprietary software.To be certain, I reproduced the error, while having all reason hea...

Stephan Engebretsen · 02-14-2014

I've now reproduced the problem with a 7.5.5 firmware. I've also reported the situation to Cisco Engineers.A case has been created, and I'm waiting for feedback regarding the solution.I'll keep this thread updated.

Member Since	‎02-13-2014 08:48 AM
Date Last Visited	‎08-18-2017 04:01 AM
Posts	6
Total Helpful Votes Received	5

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Problem when sending CANCEL before 180 Ringing is received

I ran a test with 7.5.6a, and

CANCEL before 180 Ringing not working

Experiencing unwanted translation in CiscoIPPhoneInput object

CANCEL before 180 Ringing not working

CANCEL before 180 Ringing not working