Remote control programs can be used as an OBM management tool as well. The remote control software is installed in the server to be managed. From a client PC (with remote control client software), you can connect to the server remotely using the network (in-band) or using a dial-up modem connection (out-of-band) and take control of the server, as if you were local to the machine
Server-based remote control software is a limited solution because, like KVM solutions, it works for servers only and not for other equipment. Even for servers, the remote control software may be limited to specific operating systems and platforms. It is also not a scalable solution and suffers from many of the same in-band network constraints. It is generally a one-to-one connection and would require considerable processing power, space, network bandwidth and telephone lines to manage multiple servers remotely.

Remote Console Management (RCM)
Remote console management gives you direct access to network devices regardless of network issues or your physical location.
For example, when your router at a remote location is down you cannot communicate with it through the WAN. In-band management is impossible. You must find an MIS expert to send onsite.
Out-of-band management (OBM) provides a secondary path to the network devices. It allows the administrator to gain access to the remote device regardless of network issues. The administrator can dial into a remote console management device such as the OutPost Sentinel ENS 8 and connect directly up to the network element or intelligent device that is causing the failure. That device can then be restarted, reconfigured, or taken offline enabling your network to function with minimum downtime
In addition, OutPost Sentinel products complement in-band management solutions, such as HP OpenView, but are offered at a fraction of the cost of in-band-only solutions.