Jabber for Windows or MAC Soft Client fails to register with Cisco Unified Communications Manager. This excerpt is seen in the client logs:
Warning- Registration period received (120) minus confgured timer_register_delta (120) is less than 20 seconds.
Which configuration item needs to be adjusted to correct this condition?
A. UCM Device Assigned SIP Profile "2XX Expiry Timer"
B. UCM Service Parameter "Station KeepAlive Interval"
C. UCM Device Assigned SIP Profile "Timer Register Delta"
D. "KeepAlive_Timer" parameter in jabber-config.xml file
The answer is C. The time register delta value is too high
https://community.cisco.com/t5/collaboration-voice-and-video/troubleshooting-jabber-for-windows-softphone-registration-issues/ta-p/3143926
From the above URL, ‘The default value for this is 5 and having a large value here would affect the jabber windows registration. Value between 5 to 10 is normal for a proper registration on a stable network.’
I would go with Answer C
MM: Please explain
It should be “2XX Expiry Timer”.
Step 4: In the new SIP profile, set the following values:
Timer Register Delta = 120
Timer Register Expires = 720
Timer Keep Alive Expires = 720
Timer Subscribe Expires = 21600
Timer Subscribe Delta = 15
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/12_0/cjab_b_on-premises-deployment-for-cisco-jabber-12/cjab_b_on-premises-deployment-for-cisco-jabber-12_chapter_01010.html
“Timer Register Delta” is the only timer that makes sence. Answer C