Cisco Cisco Expressway
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.
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.
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.
Unified CM.
3.
For each domain, turn On the services for that domain that Expressway is to support. The available services
are:
are:
—
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 registrations.
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 registrations.
—
IM and Presence Service: Instant messaging and presence services for this SIP domain are provided by the
Unified CM IM and Presence service.
Unified CM IM and Presence service.
—
XMPP federation: Enables XMPP federation between this domain and partner domains.
—
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).
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.
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.
Discover 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
are going to provide registration, call control, provisioning, voicemail, messaging, and presence services to
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Mobile and Remote Access Through Cisco Expressway Deployment Guide
Configuring Mobile and Remote Access on Expressway