Lync Server 2010 cannot route emergency calls with location information directly by itself and instead relies on an E-911 Network Routing Provider to route the calls appropriately. Lync transmits the location information it knows about to the routing provider, which delivers it to the emergency service.
To configure a routing provider, use the following:
Set-CsLisServiceProvider –ServiceProviderName <Name> -ValidationServiceUrl <URL from Provider> -CertFileName <Certificate path and filename issued by provider> -Password <Password issued by provider>
After a provider has been provisioned, each address in the location database should be validated with the provider. To run a test against all existing addresses, use the following ...