--- title: Cisco Unified Communications Manager (CallManager) Reviews meta\_title: 'Cisco Unified Communications Manager (CallManager) Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 111 reviews by the users' company size, role or industry to find out how Cisco Unified Communications Manager (CallManager) works for a business like yours. aggregate\_rating: rating\_value: 4.4 review\_count: 111 scale: '5' date\_modified: '2026-08-09' parent\_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity --- ### Cisco Unified Communications Manager (CallManager) Pros and Cons: Top 5 Advantages and Disadvantages #### Quick AI Summary Based on G2 Reviews Generated from real user reviews Users value the **reliability** of Cisco Unified Communications Manager, appreciating its smooth integration and consistent performance. [(3 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332538&qs=pros-and-cons#reviews) Users value the **feature-rich video conferencing** capabilities of CUCM, supporting diverse communication needs effortlessly. [(3 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332935&qs=pros-and-cons#reviews) Users value the **robust communication capabilities** of Cisco Unified Communications Manager for seamless collaboration in local networks. [(2 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332760&qs=pros-and-cons#reviews) Users value the **exceptional customer service support** provided by CUCM, enhancing their 24/7 operational efficiency. [(2 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333042&qs=pros-and-cons#reviews) Users admire the **robust messaging features** of CUCM, enhancing communication and service efficiency in a 24/7 environment. [(2 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333060&qs=pros-and-cons#reviews) Users find the **complex processes** involved in managing CUCM overwhelming, especially with multiple required servers and integrations. [(2 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332338&qs=pros-and-cons#reviews) Users report issues with the **missing internal billing & call detail record interface** , causing complications in tracking costs effectively. [(1 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333203&qs=pros-and-cons#reviews) Users find the **high cost** of Cisco Unified Communications Manager a barrier, especially for smaller businesses with fewer users. [(1 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=2043930&qs=pros-and-cons#reviews) Users often face challenges due to the **missing internal billing and call detail record interface** , impacting their operational efficiency. [(1 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332474&qs=pros-and-cons#reviews) Users find the **missing internal billing and call detail record interface** a significant drawback impacting operational efficiency. [(1 mentions)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333546&qs=pros-and-cons#reviews) ### 5 Pros or Advantages of Cisco Unified Communications Manager (CallManager) ##### 1. Reliability Users value the **reliability** of Cisco Unified Communications Manager, appreciating its smooth integration and consistent performance. [ See 3 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332538&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Mid-Market (51-1000 emp.) 5.0/5 "Secure onpremise Collaboration platform" What do you like about Cisco Unified Communications Manager (CallManager)? Secure local datacenter managed Collaboration platform Combination of voice and video conference devices Wide audio and video devices support Ideal AJ Ahmed J. Enterprise (\> 1000 emp.) 5.0/5 "Cisco Unified Communications Manager" What do you like about Cisco Unified Communications Manager (CallManager)? CUCM is a very realistic browser based and app based Intelligent Call Manger application it has solved many problems realted to our customer service j ##### 2. Video Conferencing Users value the **feature-rich video conferencing** capabilities of CUCM, supporting diverse communication needs effortlessly. [ See 3 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332935&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Enterprise (\> 1000 emp.) 3.0/5 "Feature Rich but Complex" What do you like about Cisco Unified Communications Manager (CallManager)? CUCM is a feature rich VOIP solution solution that can handle any business voice needs. From external network calling, PLAR's (private line automatic ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Mid-Market (51-1000 emp.) 5.0/5 "Secure onpremise Collaboration platform" What do you like about Cisco Unified Communications Manager (CallManager)? Secure local datacenter managed Collaboration platform Combination of voice and video conference devices Wide audio and video devices support Ideal ##### 3. Communication Users value the **robust communication capabilities** of Cisco Unified Communications Manager for seamless collaboration in local networks. [ See 2 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332760&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Mid-Market (51-1000 emp.) 5.0/5 "Secure onpremise Collaboration platform" What do you like about Cisco Unified Communications Manager (CallManager)? Secure local datacenter managed Collaboration platform Combination of voice and video conference devices Wide audio and video devices support Ideal AJ Ahmed J. Enterprise (\> 1000 emp.) 5.0/5 "Cisco Unified Communications Manager" What do you like about Cisco Unified Communications Manager (CallManager)? CUCM is a very realistic browser based and app based Intelligent Call Manger application it has solved many problems realted to our customer service j ##### 4. Customer Service Users value the **exceptional customer service support** provided by CUCM, enhancing their 24/7 operational efficiency. [ See 2 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333042&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Enterprise (\> 1000 emp.) 3.0/5 "Feature Rich but Complex" What do you like about Cisco Unified Communications Manager (CallManager)? CUCM is a feature rich VOIP solution solution that can handle any business voice needs. From external network calling, PLAR's (private line automatic AJ Ahmed J. Enterprise (\> 1000 emp.) 5.0/5 "Cisco Unified Communications Manager" What do you like about Cisco Unified Communications Manager (CallManager)? CUCM is a very realistic browser based and app based Intelligent Call Manger application it has solved many problems realted to our customer service j ##### 5. Messaging Features Users admire the **robust messaging features** of CUCM, enhancing communication and service efficiency in a 24/7 environment. [ See 2 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333060&qs=pros-and-cons#reviews) See Related User Reviews AJ Ahmed J. Enterprise (\> 1000 emp.) 5.0/5 "Cisco Unified Communications Manager" What do you like about Cisco Unified Communications Manager (CallManager)? CUCM is a very realistic browser based and app based Intelligent Call Manger application it has solved many problems realted to our customer service j ![Arturo L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Arturo L.") AL Arturo L. Mid-Market (51-1000 emp.) 5.0/5 "The best unified communications solution." What do you like about Cisco Unified Communications Manager (CallManager)? The Call Manager is the perfect solution for IP telephony, since through all its tools within the same interface, it provides us with control and admi ### 5 Cons or Disadvantages of Cisco Unified Communications Manager (CallManager) ##### 1. Complex Processes Users find the **complex processes** involved in managing CUCM overwhelming, especially with multiple required servers and integrations. [ See 2 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332338&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Enterprise (\> 1000 emp.) 3.0/5 "Feature Rich but Complex" What do you dislike about Cisco Unified Communications Manager (CallManager)? CUCM is very complex. While it is feature rich, every advanced calling feature requires an additional server, which often leads administrators wonderi ![Arturo L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Arturo L.") AL Arturo L. Mid-Market (51-1000 emp.) 5.0/5 "The best unified communications solution." What do you dislike about Cisco Unified Communications Manager (CallManager)? The integration of end devices or third parties are sometimes a bit complicated due to the protocols that are accepted and it is also not a profitable ##### 2. Billing Issues Users report issues with the **missing internal billing & call detail record interface** , causing complications in tracking costs effectively. [ See 1 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333203&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Mid-Market (51-1000 emp.) 5.0/5 "Secure onpremise Collaboration platform" What do you dislike about Cisco Unified Communications Manager (CallManager)? Missing internal billing & call detail record interface ##### 3. High Cost Users find the **high cost** of Cisco Unified Communications Manager a barrier, especially for smaller businesses with fewer users. [ See 1 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=2043930&qs=pros-and-cons#reviews) See Related User Reviews ![Arturo L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Arturo L.") AL Arturo L. Mid-Market (51-1000 emp.) 5.0/5 "The best unified communications solution." What do you dislike about Cisco Unified Communications Manager (CallManager)? The integration of end devices or third parties are sometimes a bit complicated due to the protocols that are accepted and it is also not a profitable ##### 4. Missing Features Users often face challenges due to the **missing internal billing and call detail record interface** , impacting their operational efficiency. [ See 1 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1332474&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Mid-Market (51-1000 emp.) 5.0/5 "Secure onpremise Collaboration platform" What do you dislike about Cisco Unified Communications Manager (CallManager)? Missing internal billing & call detail record interface ##### 5. Missing Functionality Users find the **missing internal billing and call detail record interface** a significant drawback impacting operational efficiency. [ See 1 mentions ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews?filters%5Bsentiment_snippet%5D=1333546&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") A Verified User Mid-Market (51-1000 emp.) 5.0/5 "Secure onpremise Collaboration platform" What do you dislike about Cisco Unified Communications Manager (CallManager)? Missing internal billing & call detail record interface ## Top-Rated Alternatives [ ![Genesys Cloud CX](https://images.g2crowd.com/uploads/product/hd_favicon/cca7778a7f52f5a71782576104666b99/genesys-cloud-cx.svg "Genesys Cloud CX") Genesys Cloud CX 4.4/5(1,558) ](https://www.g2.com/products/genesys-cloud-cx/reviews) [ ![RingEX](https://images.g2crowd.com/uploads/product/hd_favicon/7fda7f2577052a09d5896be010850215/ringex.svg "RingEX") RingEX 4.2/5(1,430) ](https://www.g2.com/products/ringex/reviews) [ ![3CX](https://images.g2crowd.com/uploads/product/hd_favicon/ff153aac01ae613678696e629e52116c/3cx.svg "3CX") 3CX 4.4/5(547) ](https://www.g2.com/products/3cx/reviews) [ View All Alternatives ](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/competitors/alternatives) ![Verified User in Education Management](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Education Management") AE Verified User in Education Management Mid-Market (51-1000 emp.) 5/5/2026 "Excellent Solution with Robust Features" 4/5 What do you like best about Cisco Unified Communications Manager (CallManager)? The system can support thousands of users and devices with high availability options, which is essential for large enterprises. CUCM integrates very well with other Cisco collaboration products such as Unity Connection and IM&P, providing a complete unified communications solution. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? Licensing and maintenance expenses may be somewhat higher than those of certain alternative solutions. Additionally, the administration panel's user interface is occasionally less intuitive, which can make troubleshooting more time-consuming if you lack the necessary expertise. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? Cisco Unified Communications Manager (CUCM) stands out as a robust and widely adopted call control platform, specifically tailored for enterprise-level telephony systems. Its comprehensive feature set and dependable performance have made it a favored solution among large organizations. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ![Verified User in Information Technology and Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Information Technology and Services") AI Verified User in Information Technology and Services Enterprise (\> 1000 emp.) 7/31/2025 "Feature Rich but Complex" 3/5 What do you like best about Cisco Unified Communications Manager (CallManager)? CUCM is a feature rich VOIP solution solution that can handle any business voice needs. From external network calling, PLAR's (private line automatic ringdown), hunt groups, call forwarding, app support. My organization has yet to find something CUCM cannot support. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? CUCM is very complex. While it is feature rich, every advanced calling feature requires an additional server, which often leads administrators wondering what server does what? It does create some stress keeping up with patching, server administration/management, etc. I have experience with other solutions that are able to provide a feature rich experience in a single pane. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? CUCM is a reliable VOIP solution that I have no doubt can scale to any business size and needs. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic CG Ciprian G. IT Director Mid-Market (51-1000 emp.) 9/10/2024 "Product is OK but the service and support is a dumpster fire" 0.5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? It checks the boxes for minimum required features for a phone system. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? The system is incredibly complex, UIs are almost intentionally hard to understand and are almost never updated. Everything looks like it was built in the 90s because it probably was. Getting service and support on anything in the system is just as painful as getting support from Cisco on anything else. They make you jump through hoop after hoop regarding service agreements, licensing, user assignments and access. You'd think you were trying to break into Fort Knox every time you need help with something. This also seems intentional, you don't have to pay your support team as much when customers will just give up and workaround the problem rather than try to get help from you. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? It allows you to make phone calls. Whoop dee doo. For the price Cisco charges you would think it would do a heck of a lot more than that. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic CK Claudia K. Senior Manager, Telecom Contact Center Operations Enterprise (\> 1000 emp.) 11/9/2023 "The Ferrari of Phone Systems" 5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? As someone who has supported CUCM for several years, I can safely say that it is a workhorse. It's stability can be rivaled by only a few other pbx platforms, in my opinion. While there is a slight learning curve and of course requires the proper Cisco training and subject matter expertise to set you up for success, after proper hand-off the platform can be supported easily by analysts and will run-well for the most part. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? The frequency with which you must upgrade to stay current may be a concern for larger entreprises. This can put you in a position were you are severely behind on version and have to scramble. It is important to plan ahead and make time for those upgrades to minimize overall work and impact to the business. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? Cisco is a robust pbx application, it provided voip service to our contact center and our admin staff. During covid , we were able to leverage Jabber to help transition our 2,000 contact center agents home in less than 72 hours. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite AJ Ahmed J. Customer service Representative Information Technology and Services Enterprise (\> 1000 emp.) 10/3/2023 "Cisco Unified Communications Manager" 5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? CUCM is a very realistic browser based and app based Intelligent Call Manger application it has solved many problems realted to our customer service job which is 24/7 . Browser based application is very light and fast it doesnot stuck with call it keeps refreshes it self every time. it has many great feature which includes 1. Team member status (online, Offline) and on calls Busy. 2.Call history 3. Calls statistics 4.on screen desktop chat with company employees. 5.Calls in Queue which helps you monitor your talk time. 6.User Interface is very Environment Friendly. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? Cisco Unified Communications Manager is a very powerful and easy to use Calls application. it is specifically designed for the ease of customer service related job . i donot find any cons which make me say this is not a good Application or call manager . Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? CUCM is helping us save our time with its great features fast and user friendly interface .sometime cisco jabber creates problem with login & call connectivity issue but identifying the problem and Troubleshooting is very easy. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![mandeep s.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "mandeep s.") MS mandeep s. Consultant Enterprise (\> 1000 emp.) 2/18/2022 "Cisco unified communication manager" 5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? It's a best product for handling unified endpoints i.e cisco phones, jabber client, video device etc Call manager can be integrated with cisco unity connection to provide voicemail features to the user and similarly we can integrate call manager with other server to get third party features Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? I did not find any cons. Everything is good in call manager Review collected by and hosted on G2.com. Recommendations to others considering Cisco Unified Communications Manager (CallManager): I would suggest to use cisco unified communication manager instead of using other vendor call manager Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? I am regular user/ adminstrator of call manager and handle user based ticket related to cisco phones Review collected by and hosted on G2.com. Show More 11/11/2023 Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications") AT Verified User in Telecommunications Mid-Market (51-1000 emp.) 1/11/2024 "Secure onpremise Collaboration platform" 5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? Secure local datacenter managed Collaboration platform Combination of voice and video conference devices Wide audio and video devices support Ideal communication solution to closed networks [w/o access to interet] Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? Missing internal billing & call detail record interface Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? CUCM / Cisco CallManager offers communication solution for closed networks [secure networks without access to internet]. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic Review from User Profile ![Arturo L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Arturo L.") AL Arturo L. Collaboration Engineer Mid-Market (51-1000 emp.) 5/6/2022 "The best unified communications solution." 5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? The Call Manager is the perfect solution for IP telephony, since through all its tools within the same interface, it provides us with control and administration in a safe way and that it is being reliably integrated with instant messaging or video conference devices. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? The integration of end devices or third parties are sometimes a bit complicated due to the protocols that are accepted and it is also not a profitable solution for small companies or less than 50 telephone users. Review collected by and hosted on G2.com. Recommendations to others considering Cisco Unified Communications Manager (CallManager): That it is a robust and highly reliable and safe tool, in terms of support and updating through its TAC, it provides you with the best experiences in solving your problems. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? That through a single tool we have a reliable and secure administration and control of calls in a single switch, with which it also provides us with greater benefits by integrating it with other virtual machines such as unity connection, VCS, Telepresence, Presence and for output of calls to the PSTN with Cube, Voice Gateways. Review collected by and hosted on G2.com. Show More 5/10/2022 Current UserValidated ReviewerIncentivizedSource: G2 invite ![Vishal T.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Vishal T.") VT Vishal T. Specialist Enterprise (\> 1000 emp.) 12/22/2021 "CUCM, Call manager, Unified plateform for communication and third party integration." 5/5 What do you like best about Cisco Unified Communications Manager (CallManager)? Third party integration via application users, It is easy to integrate third party tools like calabrio, nice for recording solutions. It is easy and reliable then Avaya, genesis. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? Nothing to dislike because it is growing and upgrading in everything and remember it a an international technology. I am working with this platform since 5 years and found it far better then other platforms. Review collected by and hosted on G2.com. Recommendations to others considering Cisco Unified Communications Manager (CallManager): Totally recommended. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? Sometime jabber login issue and internal call connectivity, And it is very easy to troubleshoot, we can go through the DNA interface and identify where call is being stucked. Review collected by and hosted on G2.com. Show More 2/20/2022 Current UserValidated ReviewerIncentivizedSource: G2 invite IK Igor K. Consultant Enterprise (\> 1000 emp.) 6/26/2019 "Cisco CallManager review" 4/5 What do you like best about Cisco Unified Communications Manager (CallManager)? Very rich feature software, allows nearly all feature for Enterprise. Very good provisioning, excellent support from Cisco TAC. Plenty of hardware endpoints available. MRA (mobile remote access) allows remote users to connect to enterprise very securely. Good integration with other Cisco UC products such as Presence, Meeting server, Unity Connection etc. Stable and controllable telephony. Good documentation. Review collected by and hosted on G2.com. What do you dislike about Cisco Unified Communications Manager (CallManager)? Expensive. Very high requirements to amount of virtual machines and their resources. Proprietary, not very friendly to 3-d party devices. Jtapi API for 3-d party integration looks a little bit obsolete. Review collected by and hosted on G2.com. Recommendations to others considering Cisco Unified Communications Manager (CallManager): Can recommend to the enterprises which can afford it. Review collected by and hosted on G2.com. What problems is Cisco Unified Communications Manager (CallManager) solving and how is that benefiting you? It supports nearly every telephony feature that enterprise needs such as IP telephony, conferencing, unified communication, messaging, remote workplaces and more. Review collected by and hosted on G2.com. Show More 10/15/2021 Current UserValidated ReviewerIncentivizedSource: G2 invite ## Work at Cisco? 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