AT&T Office@Hand vs Cisco Unified Communications Manager (Call Manager)

• It can handle multiple simultaneous voices very efficiently.
• Access across multiple devices seamlessly.
• The voice clarity is not compromised at all.

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• Device failover and fallback. Because all devices ( IP phones, gateways, trunks, etc.) are distributed across all active servers, they are able to register with other active servers in case the current becomes unavailable. In this way, you can reduce the impact of any server becoming unavailable.
• Virtualization. Call Manager appliance can run under virtualized environments.
• Several features such as Survivable Remote Site Telephony makes Call Manager the best IP telephony solution in the market.
• Wide quantity and variety of end-user devices, including the most newest and modern ones in the market that can fit any budget and need.
• Call Manager is intended to be integrated with the newest collaboration tools like Webex and Jabber for call processing purposes.
• Great customer support services from the Vendor. The Technical Assistance Center is fantastic, experienced engineers are ready to help quickly out with any request.

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• It can include the video facility as well making it a wholesome experience for users.
• It sometimes malfunctions when the limited number of participants exceed.
• Early logins create an unwanted advantage to some participants. It should not be.

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• Remote working - CUCM really struggles when it comes to remote work. In order to access the system remotely, a VPN or DirectAccess must be used.
• Extreme complexity - While CUCM does have more settings for flexibility, this also means there's more chances to mess up a setting and render a phone or line unusable, and there's much, much more to know about the system.
• No cloud solution - CUCM requires on site servers. Currently, Cisco does not have a cloud solution for their call manager.

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• There has been not one positive thing I can say about Office at Hand.
• [I feel] they have been nothing but an issue.
• My assigned customer service rep [seems to be] lacking if follow-up, follow through, knowledge of the product, and just seems to not care.
• When I get his boss, I usually get some resolution, but only some, and then I pushed by her back to him.
• Believe nothing they say and carve out hours to deal with them on the phone or by email.

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• This stuff is pricey. CUCM has to be tied together with a whole other host of Cisco call servers in order for it to do everything you need it to do, so there is always some other expensive license to buy every time you want to add or change something, so it can be a serious money pit. But if your leaders want the very best, and they want to keep everything in-house, this is probably your solution.
• Goodwill from leadership is way up, thanks to CUCM. The feature set is enormous, so we can do almost anything you can imagine with our phone system, and our leadership loves the video features and the way it integrates with WebEx and other related components.

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