Cisco Cisco Expressway 维护手册
Configuring mobile and remote access on
Expressway
Expressway
This section describes the steps required to enable and configure mobile and remote access features on
Expressway-C and Expressway-E, and how to discover the Unified CM servers and IM&P servers used by
the service.
Expressway-C and Expressway-E, and how to discover the Unified CM servers and IM&P servers used by
the service.
Note that this deployment requires valid certificates on both Expressway-C and Expressway-E. 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.
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.
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.
Configuring the Expressway-C for Unified Communications
Enabling mobile and remote access
To enable mobile and remote access functionality:
1. Go to
Configuration > Unified Communications > Configuration
.
2. Set Mobile and remote access to On.
3. Click Save.
Note that you must enable 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
provisioning for this SIP domain is serviced by Unified CM. The Expressway acts as a Unified
Cisco Expressway Administrator Guide (X8.1)
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Unified Communications
Configuring mobile and remote access on Expressway