When outside of the network, Cisco Jabber uses which of the following DNS SRV records to complete service discovery and reach domain.com?

_cuplogin._tcp.domain.com is used to discover the Cisco Unified Presence server for login and is not the record Jabber uses for external MRA-based service discovery.

_xmpp-server._tcp.domain.com is a federation record used for server-to-server XMPP communication, not for Jabber client external service discovery.

_cisco-uds._tcp.domain.com is used for internal Unified Communications service discovery when Jabber is on the corporate network, not when it is external.

The _collab-edge._tls.domain.com DNS SRV record is the external-facing record that Jabber queries to locate the Cisco Expressway-E server when operating outside the corporate network. Expressway-E acts as a secure reverse proxy, enabling Jabber to reach internal Unified Communications services such as Cisco Unified Communications Manager without a VPN. Without this record resolving to a reachable Expressway-E node, external Jabber clients cannot complete MRA service discovery.