Configuring Call Policy To Use An External Service - Cisco TelePresence Administrator's Manual

Dial plan and call processing

Configuring Call Policy to use an external service

To configure Call Policy to refer all policy decisions out to an external service:
1. Go to Configuration > Call policy >
2. Select a Call Policy mode of Policy service.
3. Configure the fields that are presented as follows:
Field Description
Protocol The protocol used to connect to the policy
service.
The default is HTTPS.
Certificate When connecting over HTTPS, this setting
verification controls whether the certificate presented by
mode the policy server is verified.
If On, for the VCS to connect to a policy server
over HTTPS, the VCS must have a root CA
certificate loaded that authorizes that server's
server certificate. Also the certificate's Subject
Common Name or Subject Alternative Name
must match one of the Server address fields
below.
HTTPS Enable this option if you want to protect
certificate certificate checking using CRLs and you have
revocation list manually loaded CRL files, or you have
(CRL) enabled automatic CRL updates.
checking
Server Enter the IP address or Fully Qualified Domain
address 1 - 3 Name (FQDN) of the server hosting the service.
You can specify a port by appending :<port>
to the address.
Path Enter the URL of the service on the server.
Status path The Status path identifies the path from where
the VCS can obtain the status of the remote
service.
The default is status.
Username The username used by the VCS to log in and
query the service.
Password The password used by the VCS to log in and
query the service.
Cisco VCS Administrator Guide (X8.1.1)
Configuration.
Usage tips
The VCS automatically supports HTTP to
HTTPS redirection when communicating
with the policy service server.
The VCS's root CA certificates are loaded
via (Maintenance > Security certificates
> Trusted CA certificate).
Go to Maintenance > Security
certificates > CRL management
configure how the VCS uploads CRL files.
If an FQDN is specified, ensure that the
VCS has an appropriate DNS
configuration that allows the FQDN to be
resolved.
For resiliency, up to three server
addresses can be supplied.
The policy server must supply return status
information, see Policy server status and
resiliency [p.338].
The maximum plaintext length is 30
characters (which is subsequently
encrypted).
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