True, there are some interfaces supported in H323 and not in MGCP (DID, E&M come to mind). Common PSTN interfaces are good for mgcp, though.
- heavier troubleshoot,
Not necessarily. You can still use the IOS debugs if you're used to them, but you can also see trace messages in the CallManager trace logs, and use the integrated Q931 translator in CallManager. There are very few commands to get mgcp going in the gateway - most configuration takes place in the CallManager GUI so, IMHO, makes it easier.
- MGCP release 0.1 (means that's not a definitive and stable release ?),
Though I'd normally agree with being shy about 0.x releases, I don't believe this is an issue. The MGCP messaging between CCM and MGCP routers is stable.
- no busyout,
You still have use of busyout commands, though you identify an issue. I have used busyout successfullty with mgcp gateways, though I don'tknow if that gets transferred to the PBX (i.e. yellow alarm). I don't have any news on that one.
- loss of isdn tuning and monitoring on the router,
Not that I know of. Which "tuning"? You can still enter commands for the voice port (x.x:23) to "tune". Lots of monitoring with the Admin Servicability monitor/Real-Time Monitor
- limited digit manipulation,
You have all the digit manipulation capabilities of CallManager - aka translation patterns. There are some things you can do with number expansion in an H323 gateway, but not much that I've seen.
To all of these I would add that mgcp gives you call survivability - call stays up if a callmanager server goes down, plus much more integration with your dial plan, CallManager GUI administration, simplified administration in the gateway. There would have to be some pretty specific circumstances to get me to go with H323.
The data sheet refers to busying out the trunks based on network congestion. I was talking about a forced busyout. We used, I believe, the "ds0 busyout dso-timeslot " command under "controller t1 xx" to busy out a range of timeslots. But, I'm not sure what the pbx side saw.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...