Securedataflowsbetweeninternalsystems
https://squareblogs.net/petramiawt/h1-b-incorporating-external-voice-over-ip-services-with-microsoft-teams
SecuredataflowsbetweeninternalsystemsandexternaltelephonicclientsbyimplementinganSBClinkedtoMSTeamsgivingmultipurposefunctionalitysecureconnectionoptions!