[stevetodd]

Just like with IP traffic, companies terminate calls through multiple providers. While bandwidth might be the primary termination provider for 911 for a company, the calls can be routed through others. That backup route, however, may not have locale information so the call might have to be taken initially at a national call center so the locale can be determined, after which it is properly forwarded to the local 911 center. Not ideal since it can add precious time to getting help, but at least the call can get through.