We are currently upgrading from CUCM 6.x to 8.6. One of the discussion points has been upgrading our voice gateways (about 200+ of them) from mgcp to h323. I'm a little leery of this given having to manually configure router patterns on each h323 gateway vs doing them on call manager.
Are large voice deployments using mgcp vs h323 for the gateways? If so, can you give good reasons why?
I guess what I'm really interested in is managing a large amount of gateways using either protocol - if there are any differences that would lead me one way vs another if you had a large amount of gateways and a small amount of people to manage them.
With over 200 GWs I would definitely go with either H323 or SIP as backhualing MGCP to CUCM can add significant bandwidth requirements for 200+ sites on the central location.
As far as management I feel it's really the same amount of management, as with MGCP you need to drill down through menus on CUCM and H323 you simply adjust configuration on the GW, and once you really deploy the GW there is no much you would need to have to do to either.
H323 is a also a lot more robust with significantly less issues, just search this forum for all the MGCP issues folks experience, it supports more features, i.e. partial PRIs, NFAS, etc, there is no dependency on IOS version/CUCM version.
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