In your case you can only do the upgrade using option b. YOu cannot use the web upgrade exe.
You should take a bars backup and if possible (a system image of your server, or if server supports drive removal feature). Then insert the 4.1 disks, perform the upgrade. The database will be automatically upgraded. All your existing settings will be retained in the new system.
You will need to use 3.3.5 discs to install 3.3.5 with the same name, ip etc on new server. Take a BARS backup from old server and restore that into new server. (The new server should be built in an isolated network). Then using 4.x discs you can perform the upgrade on the new box.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
[toc:faq]CUCM Database Replication is an area in which Cisco customers
and partners have asked for more in-depth training in being able to
properly assess a replication problem and potentially resolve an issue
without involving TAC. This document discusse...