Abstract: In one embodiment, an apparatus may include a trunk service unit and at least one logical multimedia terminal adapter (L-MTA). The trunk service unit may be configured to provide session initiation protocol (SIP) service to at least one subscriber equipment in a subscriber network. Each subscriber equipment may have an associated subscriber equipment identifier. The trunk service unit may provide subscriber-facing signaling to communicate with the subscriber network and network-facing signaling to communicate with a stimulus-based network. The L-MTA may be associated with the stimulus based network and may be configured to obtain service from a call management server (CMS) in the stimulus-based network. Each L-MTA may have an associated L-MTA equipment identifier, where the network-facing signaling of the trunk service unit being used to control the at least one L-MTA.