Cisco Cisco Expressway Maintenance Manual
Field
Description
Usage tips
Status path
The Status path identifies the path from where
the Expressway can obtain the status of the
remote service.
the Expressway can obtain the status of the
remote service.
The default is status.
Username
The username used by the Expressway to log in
and query the service.
and query the service.
Password
The password used by the Expressway to log in
and query the service.
and query the service.
The maximum plaintext length is 30
characters (which is subsequently
encrypted).
characters (which is subsequently
encrypted).
Default CPL
This is the fallback CPL used by the
Expressway if the service is not available.
Expressway if the service is not available.
You can change it, for example, to
redirect to an answer service or recorded
message.
redirect to an answer service or recorded
message.
4.
Click Save.
The Expressway should connect to the policy service server and start using the service for Call Policy
decisions.
decisions.
Any connection problems will be reported on this page. Check the Status area at the bottom of the page and
check for additional information messages against the Server address fields.
check for additional information messages against the Server address fields.
Supported Address Formats
The destination address that is entered using the caller’s endpoint can take a number of different formats, and this
affects the specific process that the Expressway follows when attempting to locate the destination endpoint. The
address formats supported by the Expressway are:
affects the specific process that the Expressway follows when attempting to locate the destination endpoint. The
address formats supported by the Expressway are:
■
IP address, for example
10.44.10.1
or
3ffe:80ee:3706::10:35
■
H.323 ID, for example
john.smith
or
john.smith@example.com
(note that an H.323 ID can be in the form of a URI)
■
E.164 alias, for example
441189876432
or
6432
■
URI, for example
john.smith@example.com
■
ENUM, for example
441189876432
or
6432
Each of these address formats may require some configuration of the Expressway in order for them to be supported.
These configuration requirements are described below.
These configuration requirements are described below.
Dialing by IP Address
Dialing by IP address is necessary when the destination endpoint is not registered with any system. See the
section for more information.
Dialing by H.323 ID or E.164 Alias
No special configuration is required to place a call using an H.323 ID or E.164 alias.
, applying any transforms and then searching the Local Zone
and external zones for the alias, according to the search rules.
Note that SIP endpoints always register using an AOR in the form of a URI. You are recommended to ensure that
H.323 endpoints also register with an H.323 ID in the form of a URI to facilitate interworking.
H.323 endpoints also register with an H.323 ID in the form of a URI to facilitate interworking.
189
Cisco Expressway Administrator Guide
Dial Plan and Call Processing