Patent ID: 7684805

Claim:
A private instant communications processing element configured for connection ma private network and for use in conjunction with a first public land mobile network, the first public land mobile network providing wireless access to a first plurality of wireless user devices, the first plurality of wireless user devices comprising a first group of private wireless user devices operable in the first public land mobile network which is configured to route signals from the first group of private wireless user devices to the private instant communications processing element connected in the private network, the private instant communications processing element being configured to: receive, via the first public land mobile network, in the private instant communications processing element of the private network, instant communications signals from devices in the first group of private wireless user devices; perform instant communications signal processing on the received instant communications signals by producing a combined signal which includes the received instant communication signals from the devices in the first group of private wireless user devices; transmit, via the first public land mobile network, from the private instant communications processing element of the private network, the combined signal of the received instant communications signals to a PoC (push-to-talk over cellular) server in the first public land mobile network in association with a generic identifier, such that the combined signal is treated as coming from a single wireless user device; and wherein the instant communications signals are PoC (Push-to-talk over cellular) voice signals.