14.5 Unified Communications Mobile and Remote Access Configuration

This topic lists the configuration steps for implementing Unified Communications mobile and remote access.

Make sure that the following prerequisites are met:

  • Cisco Jabber for Windows 9.7 or later is used.
  • Local DNS and public DNS records for Unified Communications mobile and remote access are configured on the DNS servers.
  • Cisco Expressway Core and Cisco Expressway Edge are configured with the initial configuration.
  • Cisco Unified Communications Manager is configured to allow registrations from Cisco Jabber for Windows clients.

Before configuring Unified Communications mobile and remote access, make sure that the following prerequisites are met:

  • Cisco Jabber for Windows 9.7 or later must be used. Starting with this version, the Unified Communications mobile and remote access functionality is enabled by default and the client can identify that it must connect through the Cisco Expressway Series when there is no response to the _cisco-uds._tcp.(domain) DNS SRVlookup request.
  • Local DNS and public DNS servers must be configured with the required records for Unified Communications mobile and remote access functionality.
    Note

    Make sure that the _cisco-uds._tcp.<domain> and _cuplogin._tcp.<domain> SRVs are not resolvable from outside of the internal network.

  • Cisco Expressway Core and Cisco Expressway Edge are configured with initial configurations (system name, DNS, and NTP as a minimum).
  • Cisco Unified Communications Manager is configured to allow registrations from Cisco Jabber for Windows clients.

Unified Communications Mobile and Remote Access Configuration Procedure

This section lists the steps that are required to implement Unified Communications mobile and remote access.

  1. Enable Unified Communications mobile and remote access on both Cisco Expressway servers.
  2. Configure Unified Communications mobile and remote access on Cisco Expressway Core.
    1. Configure a SIP domain to route registrations to Cisco Unified Communications Manager.
    2. Install the Cisco Unified Communications Manager Tomcat certificate.
    3. Discover Cisco Unified Communications Manager servers.
  3. Configure a secure traversal zone connection for Unified Communications mobile and remote access.
    1. Configure a traversal zone on Cisco Expressway Edge.
    2. Configure a traversal zone on Cisco Expressway Core.
    3. Generate a security certificate on both Cisco Expressway servers.
    4. Sign a security certificate for both Cisco Expressway servers.
    5. Install a security certificate on both Cisco Expressway servers.
    6. Install CA certificates on both Cisco Expressway servers as trusted CA certificates.

Most of the configuration steps are performed on Cisco Expressway Core and Cisco Expressway Edge servers. The Cisco Unified Communications Manager Tomcat certificate that must be installed on Cisco Expressway Core must be obtained from the Cisco Unified Communications Manager server or servers.

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