Cisco Cisco Expressway
To generate a CSR and/or upload the Expressway's server certificate, go to Maintenance > Security certificates >
Server certificate.
Server certificate.
Additional server certificate requirements apply when configuring your Expressway system for Unified
Communications. For full information, see Expressway Certificate Creation and Use Deployment Guide on the
Communications. For full information, see Expressway Certificate Creation and Use Deployment Guide on the
Task 6: Configuring NTP Servers
The NTP server address fields set the IP addresses or Fully Qualified Domain Names (FQDNs) of the NTP servers to
be used to synchronize system time. The Time zone sets the local time zone of the Expressway.
be used to synchronize system time. The Time zone sets the local time zone of the Expressway.
To configure the NTP server address and time zone:
1.
Go to System > Time.
2.
Configure the fields as follows:
NTP server 1
Enter
10.0.0.21
Time zone
GMT in this example
3.
Click Save.
Task 7: Configuring SIP Domains
The Expressway acts as a SIP Registrar for configured SIP domains, accepting registration requests for any SIP
endpoints attempting to register with an alias that includes these domains.
endpoints attempting to register with an alias that includes these domains.
■
Registration restriction (Allow or Deny) rules can be configured to limit acceptable registrations. See
.
■
If authentication is enabled, only devices that can properly authenticate themselves will be allowed to
register.
register.
To configure a SIP domain:
1.
Go to Configuration > Domains.
2.
Click New.
3.
Enter the domain name into the Name field, such as example.com.
4.
Click Create domain.
5.
The Domains page displays all configured SIP domain names.
16
Cisco Expressway Registrar Deployment Guide
Expressway System Configuration