We are planning to deploy a simple voip network for our customer (about 50 phones).
They will use ATA-186s, 1750s and even AS5300 to access the PSTN. The problem is they do not have a gatekeeper at all. I'm worrying about security issues meaning how we can not allow to perform unauthorized calls through as5300 using right phone number from different place (different ip address)? By default AS5300 will process this call.
What are the way(s) to not allow this behaviour without interaction with gatekeeper?
On the assumption that the 5300 is running H.323, then your options are access lists on the 5300 to only accept the H.225 setup signalling from the Call Manager. You can leave the RTP stream uncontrolled since its meaningless without the call setup. The Call Managager acts as a signalling converter between the IP Phones Skinny and H.323, so all call control can be done via Calling Search Space / Partitions.
With CCM3.3 you can control the ATAs via MGCP too.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.