This appears to be the approach that both the new Sangoma 911 and Clearly IP 911 solutions to RAY BAUM ACT challenges offer at this time.
But there are other ways discussed in other threads to get this information relayed dynamically only when needed that can help avoid the privacy issues associated with the traditional Registered Location method. I also offer up some answers to the Frequently Asked Question about Dispatchable Location separately from this forum - just as long as we are diverting from the OP I thought I’d make mention of it 