04-06-2018 03:04 PM - edited 03-17-2019 12:34 PM
Hello,
I've been asked to support Call Manager and I am getting a "Registration: Security Error on phone" while reviewing the configuration of Call Manger, I ran across the certificate screen that indicated some certificates has expired.
I see there is a regenerate option. Is there a process and order which these certs need to be generated?
Thanks for your help.
04-06-2018 03:24 PM
Read the following very carefully as otherwise you might have ITL issues if you do all the certificates/servers at the same time.
02-17-2020 03:18 PM
hi Experts,
I have few question on re-generate expired certs for UCM 12 ( not in mixed mode )
Following is the expired certs :
- Call Manager
-CAPF
-TVS
- ITL Recovery
-ipsec
-Tomcat
* what is the impact if I let it expired ?
* Which order I need to do it first ? How many hours it take , we have 1 Pub and 5 Subs, 2 TFTP, 10,000 phones
* What tool to check and delete ITL remotely ?
* If I don't restart phone after "Call Manager" cert regenerate, will phone still registered?
* if I don't use Mixed mode, means no need to worry on TVS and CAPF ?
Thanks,
C
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