In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a mobile station (MS). The MS registers to a first public land mobile network (PLMN) over a first access technology (AT). The MS determines that a received signal quality of the first PLMN over the first AT is lower than the operator controlled signal threshold per access technology. In response, the MS periodically attempts to obtain service on the first PLMN over a second AT. A received signal quality of the first PLMN over the second AT is equal to or greater than an operator controlled signal threshold per access technology.