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I’m interested in understanding more about how MCI deals with a converged Enterprise’s need to provide universal call routing via a single access method to sites, i.e. 911, 411, call Joe’s Pizzaria around the corner? SLAs?
I know it needs PSTN, but that doesn’t mean it has to be separate access circuits going into the site. Correct me if I’m wrong but technically, switch configurations between the POP and CO could provide these services. I believe this to be less a technical problem and more a regulatory one. But for now, how would one achieve the technical solution between the POP, CO and premise systems?
I agree that it is more of a regulatory issue, between the IXCs and the LECs. Nevertheless 911, 411 and other service extensions are best kept as a PBX function, SS7 systems can route them with the proper information with certain limitations.
In any case I am a firm believer of having few switch lines as a backup anyway, so why not program the PBX to switch these calls to them anyway?