I have a cisco Call manager express 2821. Show Telephony-service command shows it as version 4.1(0).
I have a cisco 7975 Phone which is running SCCP 8.3.2 version, recently i have tried to attache a operator console 7916-12 to it, but Phone wont recognise it, a google search confirmed that it needs to be updated to SCCP version 8.3.5.
I have logged into download and saw three options. One is .sbn Second is .exe and Third is .zip.
I need some body to explain me how do i diffrentiate between call manager and call manager express. both seem to be having version 4.x and 7.x ?
What is Cisco Unified Call Manager ( is this call manager based on windows or Linux platforms)?
How do i differntiate between call manager and call manager express with version numbers?
Your help will be appreciated.
Thanks in advance