Cisco Cisco Expressway 维护手册
busy
Destination is found but is busy
noanswer
Destination is found but does not answer
redirection
Expressway is asked to redirect the call
default
CPL to run if the other results do not apply
The CPL can perform further actions based on these results. Any results nodes must be contained within the
proxy
node. For example:
<proxy timeout="10">
<busy>
<!--If busy route to recording service-->
<location clear="yes" url="recorder">
<proxy/>
</location>
</busy>
</proxy>
Reject
If a
reject
node is executed the Expressway stops any further script processing and rejects the current call.
The custom reject strings
status=string
and
reason=string
options are supported here and should be used together
to ensure consistency of the strings.
Unsupported CPL Elements
The Expressway does not currently support some elements that are described in the CPL RFC. If an attempt is made
to upload a script containing any of the following elements an error message will be generated and the Expressway
will continue to use its existing policy.
to upload a script containing any of the following elements an error message will be generated and the Expressway
will continue to use its existing policy.
The following elements are not currently supported:
■
time-switch
■
string-switch
■
language-switch
■
priority-switch
■
redirect
■
mail
■
log
■
subaction
■
lookup
■
remove-location
Changing the Default SSH Key
Using the default key means that SSH sessions established to the Expressway may be vulnerable to "man-in-the-
middle" attacks, so you are recommended to generate new SSH keys which are unique to your Expressway.
middle" attacks, so you are recommended to generate new SSH keys which are unique to your Expressway.
An alarm message "Security alert: the SSH service is using the default key” is displayed if your Expressway is still
configured with its factory default SSH key.
configured with its factory default SSH key.
To generate a new SSH key for the Expressway:
250
Cisco Expressway Administrator Guide