1. A system for presence-based management in a communication network, the system comprising: an instant messaging (IM) and presence server coupled to one or more network devices in a communication network, the network devices coupling two or more endpoints to each other and enabling communication between a first one of the endpoints and one or more second ones of the endpoints, the IM and presence server being operable to: using IM, discover one or more of the network devices; using IM, obtain presence information on the discovered network devices from the discovered network devices; and using the presence information on the discovered network devices from the discovered network devices, maintain presence data associated with the discovered network devices.