Topic Last Modified: 2014-04-08

When you configure Domain Name System (DNS) for public instant messaging connectivity, you will find that the configuration that supports external users will support public IM connectivity. If you have already configured your Edge Server or Edge pool, you should have the DNS records necessary to support public IM connectivity.

DNS Summary – Public Instant Messaging Connectivity

Location/TYPE/Port FQDN/DNS Record IP Address/FQDN Maps to/Comments

External DNS/A

Access Edge service interface

Access Edge service external interface (Contoso). Repeat as necessary for all SIP domains with Lync enabled users.

See Also