Hi Bejoy,
This may help you, chapter "Reset Admin Password for Cisco Jabber Guest Administration":
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/Guest/11_1/ag/jabc_b_cisco-jabber-guest-111-administrators/jabc_b_cisco-jabber-guest-111-a...
That's generally correct.
11.0.0.40 is your client version, it will get updated if next time you visit a newer server, but won't downgrade if you visit an old server.
Version main_10.6.10.11 is the JG server version you are visiting to.
Previously, you should have went to another JG server, which has a higher version (11.0) and that server checks your plugin version, and request you to upgrade the plugin.
Then ...
No, you can't.
Jabber Guest is typically ordered under one of the bundles – EA, CUWL, CUCM, BE6K, HCS etc. You should have one SO number for the ordering.
Customers ordering Jabber Guest should be shipped a RTU certificate and the software. Eithe...