AAD: Azure Active Directory
AD: Active Directory
ADAL: Azure Active Directory Authentication Library
Candidate: Possible combination of IP address and port for media channel
CDR: Call Detail Record
CQD: Call Quality Dashboard
DID: direct inward dialing
DSCP: Differentiated Service Code Point
EWS: Exchange Web Services
ExpressRoute: An Azure service that lets you create private connections between Microsoft datacenters and infrastructure that's on your premises or in a colocation facility.
FQDN: fully qualified domain name
GPO: Group Policy Object
HTTPS: Hypertext Transfer Protocol Secure
ICE: Interactive Connectivity Establishment
ITSP: Internet telephony service provider
LAN: local area network ...