A method performed by a multi-mode mobile station for an inter-technology handoff of a communication session from a first network associated with a first radio frequency RF technology to a second network associated with a second RF technology, the method comprising: exchanging bearer data with the first network via the first RF technology; detecting an availability of the second network associated with the second RF technology in response to receiving a system overhead message via the second RF technology; intercepting, at a link layer of a second protocol stack associated with the second RF technology, signaling associated with the second RF technology and providing the intercepted signaling to an application layer of a first protocol stack associated with the first RF technology, wherein the intercepting further comprises: intercepting, by a first link layer shim (536, 540) of the protocol stack associated with the second RF technology, link layer signaling; intercepting, by a second link layer shim of the protocol stack associated with the second RF technology, bearer data, wherein each of the first link layer shim (536, 540) and the second link layer shim provides the intercepted signaling and bearer data to the application layer associated with the first RF technology; encapsulating the intercepted signaling of the second RF technology; tunneling (606, 608) the encapsulated signaling to the second network via the first RF technology and first network; establishing a registration state in the second network via the tunnel, without directing bearer data to the second RF technology and while continuing to exchange bearer data with the first network via the first RF technology; and subsequent to establishing a registration state in the second RF technology, handing off to the second RF technology and ceasing the intercepting of signaling of the second RF technology and tunneling the intercepted signaling via the first RF technology. exchanging bearer data with the first network via the first RF technology; detecting an availability of the second network associated with the second RF technology in response to receiving a system overhead message via the second RF technology; intercepting, at a link layer of a second protocol stack associated with the second RF technology, signaling associated with the second RF technology and providing the intercepted signaling to an application layer of a first protocol stack associated with the first RF technology, wherein the intercepting further comprises: intercepting, by a first link layer shim (536, 540) of the protocol stack associated with the second RF technology, link layer signaling; intercepting, by a second link layer shim of the protocol stack associated with the second RF technology, bearer data, wherein each of the first link layer shim (536, 540) and the second link layer shim provides the intercepted signaling and bearer data to the application layer associated with the first RF technology; intercepting, by a first link layer shim (536, 540) of the protocol stack associated with the second RF technology, link layer signaling; intercepting, by a second link layer shim of the protocol stack associated with the second RF technology, bearer data, wherein each of the first link layer shim (536, 540) and the second link layer shim provides the intercepted signaling and bearer data to the application layer associated with the first RF technology; encapsulating the intercepted signaling of the second RF technology; tunneling (606, 608) the encapsulated signaling to the second network via the first RF technology and first network; establishing a registration state in the second network via the tunnel, without directing bearer data to the second RF technology and while continuing to exchange bearer data with the first network via the first RF technology; and subsequent to establishing a registration state in the second RF technology, handing off to the second RF technology and ceasing the intercepting of signaling of the second RF technology and tunneling the intercepted signaling via the first RF technology.