Cisco Cisco Expressway
Figure 6: Single sign-on for on-premises UC services
Single Sign-On prerequisites
On the Expressway pair:
n
An Expressway-E and an Expressway-C are configured to work together at your network edge.
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A Unified Communications traversal zone is configured between the Expressway-C and the Expressway-
E.
E.
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The SIP domain that will be accessed via SSO is configured on the Expressway-C.
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The Expressway-C is in Mobile and remote access mode and has discovered the required Unified CM
resources.
resources.
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The hostnames of the required Unified CM resources are added to the HTTP server allow list on the
Expressway-C.
Expressway-C.
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If you are using multiple deployments, the Unified CM resources that will be accessed by SSO are in the
same deployment as the domain that will be called from Jabber clients.
same deployment as the domain that will be called from Jabber clients.
On the Cisco Jabber clients:
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Clients are configured to request the internal services using the correct domain names / SIP URIs / Chat
aliases.
aliases.
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The default browser can resolve the Expressway-E and the IdP.
On the Identity Provider:
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The domain that is on the IdP certificate must be published in the DNS so that clients can resolve the IdP.
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The identity provider must support SAML 2.0. You must use one of the following IdPs:
l
Microsoft Active Directory Federation Services (ADFS) version 2 or 3
Unified Communications Mobile and Remote Access via Cisco Expressway Deployment Guide (X8.5)
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Single Sign-On (SSO) over the Collaboration Edge