I need to disable all un-necessary protocols on my voice gateway. I have callmanager (6.11) and Cisco IOS voice gateway. I do not use sip or h323 to connect to any other voice gateway. Calls from phones only need to talk to callmanager and voice gateway and calls will go out from PRI on the voice gateway.
I also use SRST in case callmanager fails.
My understanding is that I only need sccp as the protocol for communication between callmanager, voice gateway and phones. So can I disable all H323 and SIP connections to my voice gateway? Callmanager always talk to voice gateway through SCCP. Is this correct? If callmanager fails, all phones will talk sccp to voice gateway. Is this correct? So is there any need for H323 connection in this scenario? If all my calls are going through PRI do I need to enable H323 or SIP connections to the voice gateway at all?
I know that for SRST we need H323. But this is only a service enabled on the router and no h323 connection to the voice gateway is needed. Is this correct?
You typically configure the voice gw to either use MGCP, H323 or SIP, not SCCP. First determine which protocol you are using, the easiest way would be to identify the GW on the CallManager to find out if it's MGCP or H323 or SIP, then you can disable unnecessary config from it.
As to SRST you are correct it typically uses H323 so all the pertaining dial peers will need to stay for sure.
No, CallManager is your "protocol translator", a device can talk any of the supported protocols with CM. In your example the GW talks to CM via H323 and the phone talk to CM via SCCP (or they could use SIP), the phones do not talk directly with GW, the signaling always goes via CM under normal operation. If GW falls under SRST then the call-manager-fallback service supports SCCP signaling and phone talk SCCP with it, however the GW is still using H323 for PSTN connectivity. So, as you see you always use protocol transaltion in the mixture.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
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