Руководство По Обслуживанию для Cisco Cisco Expressway
registrations. The default is On.
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IM and Presence Service: Instant messaging and presence services for this SIP domain are provided
by the Unified CM IM and Presence service. The default is On.
by the Unified CM IM and Presence service. The default is On.
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XMPP federation: Enables XMPP federation between this domain and partner domains. The default is
On.
On.
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Deployment: Associates the domain with the selected deployment, if there are multiple deployments.
This setting is absent if there is only one deployment (there is always at least one).
This setting is absent if there is only one deployment (there is always at least one).
Turn On all of the applicable services for each domain.
Note that these settings are not entirely independent. You cannot disable SIP registration and
provisioning while using IM and Presence. You can disable IM and Presence while SIP registrations
and provisioning on Unified CM is On, but the reverse is not true. So, if you switch IM and Presence
Service On, then your setting for SIP registrations and provisioning is ignored and the Expressway-C
behaves as though it was On.
Note that these settings are not entirely independent. You cannot disable SIP registration and
provisioning while using IM and Presence. You can disable IM and Presence while SIP registrations
and provisioning on Unified CM is On, but the reverse is not true. So, if you switch IM and Presence
Service On, then your setting for SIP registrations and provisioning is ignored and the Expressway-C
behaves as though it was On.
Discovering Unified Communications servers and services
The Expressway-C must be configured with the address details of the Unified Communications
services/nodes that are going to provide registration, call control, provisioning, voicemail, messaging, and
presence services to MRA users.
services/nodes that are going to provide registration, call control, provisioning, voicemail, messaging, and
presence services to MRA users.
IM and Presence Service configuration is not required if you're deploying the hybrid model, as these services
are provided by the WebEx cloud.
are provided by the WebEx cloud.
Note: The connections configured in this procedure are static. You must refresh the configuration on the
Expressway-C after you reconfigure or upgrade any of the discovered Unified Communications nodes. For
more details, see
Expressway-C after you reconfigure or upgrade any of the discovered Unified Communications nodes. For
more details, see
Go to
Configuration > Unified Communications > <UC server type>
and click Refresh servers.
Trusting the certificates presented to the Expressway-C
If TLS verify mode is On when discovering Unified Communications services, then you must configure the
Expressway-C to trust the certificates presented by the IM and Presence Service nodes and Unified CM
servers.
Expressway-C to trust the certificates presented by the IM and Presence Service nodes and Unified CM
servers.
1. Determine the relevant CA certificates to upload:
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If the servers' tomcat and CallManager certificates are CA-signed, the Expressway-C's trusted CA list
must include the root CA of the certificate issuer.
must include the root CA of the certificate issuer.
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If the servers are using self-signed certificates, the Expressway-C's trusted CA list must include the
self-signed certificates from all discovered IM and Presence Service nodes, Cisco Unity Connection
servers, and Unified CM servers.
self-signed certificates from all discovered IM and Presence Service nodes, Cisco Unity Connection
servers, and Unified CM servers.
2. Upload the required certificates to the Expressway-C (
Maintenance > Security certificates > Trusted
CA certificate
).
3. Restart the Expressway-C (
Maintenance > Restart options
).
Discovering IM and Presence Service nodes
1. On Expressway-C, go to
Configuration > Unified Communications > IM and Presence Service
nodes
.
The page lists any IM and Presence Service nodes that have already been discovered.
Cisco Expressway Administrator Guide (X8.5.2)
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Unified Communications
Mobile and remote access