I have an opportunity to sell and install a UC520 with about 20 users. It is for one office of a very large organization that already has Cisco CME and CUCM in many locations. We are getting some push back from a competing vendor that they need to have a CME on a 2851 with CUE module. The UC520 is half the price of the CME solution and seems more appropriate to me based on the size of the office and the fact they have no plans to ever grow larger.
So my question is if anyone can think of reasons that a UC520 would or would not integrate well into a larger CUCM network?
For example, I assume inter office dialing should not be a problem to configure. But, what about admin and monitoring tools? I think CCA is just for UC520, right? CUCM and CME would typically be administered in a large organization how?
Thanks for any input.
You are going to have some problems with support. UC500 is not supported with CUCME or with CUCM. I am not saying it won't work, but you just aren't likely to get any support when you have problems and I know that some features will not work like the UC500 being an SRST router. You can make a SIP trunk connection to CUCM and to CUCME, but you won't be able to use CCA for most of this to do the configuration anyway.
Every organization has different monitoring tools, but likely are SNMP based for CUCME. CUCM has many different tools available. For configuration, CUCM has a web based GUI. CUCME has CCP, which has a very different feature set than CCA. They do not do the same things and have different focuses. CUCME also has a basic GUI, but is configured mostly though CLI. The only real pro is cost up front.
UC520 has a limit of 5 sites in a multisite (full mesh) network, and is a distributed model.
UC520 has a limit of 10 total remote teleworkers (this includes multisites)
UC520 doesnt support SRST
UC520 doesnt support advanced routing protocols (usually placed behind a SIP Trunk SP demarcation router)
UC520 runs an IOS/CME/CUE bundle which does not offer every feature you can configure on ISR CME
UC520 has a configuration Assistant (CCA) which helps with Day0 and Day one configuration.
UC520 tops out at 64 users.
UC520 does have SNMP MIBs so can me monitored from a NOC
UC520 supports lower cost phones using a tokenized SCCP protocol called SPCP so is perhaps price advantaged.