Cisco Cisco Expressway 维护手册
Expressway-E. This involves:
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Installing suitable security certificates on the Expressway-C and the Expressway-E.
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Configuring a Unified Communications traversal zone between the Expressway-C and the Expressway-E
For information about how to do this, see:
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already have a secure traversal zone in place)
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Note that if XMPP federation is to be used, the IM&P servers need to be discovered on the Expressway-C for
all the relevant information to be available when generating certificate signing requests.
all the relevant information to be available when generating certificate signing requests.
Setting up the Expressway-C
This section describes the configuration steps required on the Expressway-C.
Configuring DNS and NTP settings
Check and configure the basic system settings on Expressway:
1. Ensure that System host name and Domain name are specified (
System > DNS
).
2. Ensure that local DNS servers are specified (
System > DNS
).
3. Ensure that all Expressway systems are synchronized to a reliable NTP service (
System > Time
). Use
an Authentication method in accordance with your local policy.
If you have a cluster of Expressways you must do this for every peer.
Enabling the Expressway-C for mobile and remote access
To enable mobile and remote access functionality:
1. Go to
Configuration > Unified Communications > Configuration
.
2. Set Unified Communications mode to Mobile and remote access.
3. Click Save.
Note that you must select Mobile and remote access before you can configure the relevant domains and
traversal zones.
traversal zones.
Configuring the domains to route to Unified CM
You must configure the domains for which registration, call control, provisioning, messaging and presence
services are to be routed to Unified CM.
services are to be routed to Unified CM.
1. On Expressway-C, go to
Configuration > Domains
.
2. Select the domains (or create a new domain, if not already configured) for which services are to be routed
to Unified CM.
3. For each domain, turn On the services for that domain that Expressway is to support. The available
services are:
l
SIP registrations and provisioning on Unified CM: Endpoint registration, call control and
provisioning for this SIP domain is serviced by Unified CM. The Expressway acts as a Unified
Communications gateway to provide secure firewall traversal and line-side support for Unified CM
provisioning for this SIP domain is serviced by Unified CM. The Expressway acts as a Unified
Communications gateway to provide secure firewall traversal and line-side support for Unified CM
Cisco Expressway Administrator Guide (X8.5.2)
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Unified Communications
Mobile and remote access