OpenScape Business is a unified communications offering from Unify (formerly Siemens Enteprise Communications), combining telephony & VOIP, web & video conferencing, and messaging in one integrated platform targeted at SMBs.
Call Manager is a unified call control center from Cisco that supports enterprise collaboration functions across the spectrum of IP telephony, video & web conferencing, and messaging. Features include call forwarding, call back, call transfer, ad hoc conferencing, and call park.
Overall Satisfaction with Cisco Unified Communications Manager (Call Manager) in general is more a telephony platform that a Unified Communications suite, but it could fit smaller companies or certain industries with specific requirements or needs, like hospitality.
Cisco Unified Communications Manager is suited for medium to large customers who are in search for a solid call control platform with added security in mind. Cisco Unified Communications Manager also supports receptions, small groups and also a mini contact center type of set up with its Hunt Group, Pick up Group and call queuing facilities and also with set up of music on hold function while calls queuing.
The usability part of Cisco Unified Communications Manager is very much simple from a usability point of view. Day-to-day Move Add Change Delete (MACD) can be performed by the administrators very easily with simple training. From the initial deployment point of view, some of the thing can be improved to simplify the process.
CUCM is supported by most third-party vendors for related products, so it makes finding solutions to specific needs easy. Also Cisco TAC is very knowledgeable, and we have never run into a problem they have not been able to resolve. Usually they are resolved without the need to escalate tickers either.
We have been a Cisco based shop and have looked at other cloud voice options such as MS Teams pbx, and others, but ultimately, the features, endpoints, and reliability of Cisco has been the common factor in staying with them as our voice provider. Their integrations, room systems, and hybrid design allows for us to be flexible and keep a high up time vs reliance on 100% cloud.