Terminal Connections - Cisco Codec C20 Reference Manual

Cisco TelePresence System Codec C20
Contents Introduction

Terminal connections

Managing feedback subscriptions
To register, list and deregister feedback expressions you use
the command xFeedback and its corresponding sub commands.
The registered expressions are only valid for the currently
active connection. If you open two Telnet sessions and register
to get feedback in one session, you do not receive feedback
in the other serssion. This also means that if you disconnect
from a session, you have to re-register all expressions after
reconnecting.
You can register up to 38 expressions.
Codec C20 API Reference Guide TC6.0 February 2013.
D14869.05
About the API About the API xConfiguration
Feedback output
The feedback output is exactly the same as you get when query-
ing the system using the xConfiguration and xStatus commands.
E.g., if you issue the command xStatus Standby Active
on the command line the result is:
*s Standby Active: On
** end
If you have registered for feedback on status changes the
feedback you get when the system goes to standby-mode
will be exactly the same:
*s Standby Active: On
** end
This means that when you are programming against the device
you only need to handle one format.
20
xCommand xStatus
example: Managing feedback subscriptions
A: Register feedback expressions.
Write in:
xFeedback register /Status/Audio
Result:
** end
OK
Write in: xFeedback register /Event/CallDisconnect
Result:
** end
OK
Write in: xFeedback register /Configuration/Video/
MainVideoSource
Result:
** end
OK
B: List out currently registered expressions.
Write in: xFeedback list
Result: /Configuration/Video/MainVideoSource
/Event/CallDisconnect
/Status/Audio
** end
OK
C: Deregister feedback expressions.
Write in:
xFeedback deregister /Event/CallDisconnect
Result:
** end
OK
Write in:
xFeedback deregister /Status/Audio
Result:
** end
OK
D: List the new feedback expressions.
Write in: xFeedback list
Result: /Configuration/Video/MainVideoSource
** end
OK
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