Technical Description of TANDBERG 8000 with software version E3/B8
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The registration of a H.323 client in CallManager is supported on the CallManager
(CCM) 4.0 software and forward.
Note: CallManager does not support features like Duo Video, H.264 and encryption. A
TANDBERG endpoint registered to CallManager will loose these capabilities.
There is no confirmation on the TANDBERG system that it is registered to a
CallManager.
4.1.3.7
Configuring an H.323 client on the CallManager 4.0
To configure the CallManager with an H.323 client, log on to the administration web
interface and go to the phone configuration page. The Phone configuration page is
located on: device (top menu) -> Add a New device -> Phone -> H.323 Client.
In the phone configuration page type the IP address of the TANDBERG system in the
Device name field, select device pool and push the insert button. A pop-up box will now
appear on the screen and ask you if you would like to configure the directory number.
Push the ok button. You should now see the Directory Number Configuration WEB
page. Enter the E.164/phone number of your TANDBERG system in the Directory
number field, and in the “Forward and Pickup Settings” enter the time of “No Answer
Ring Duration”. The time selected has to have a value from 1 to 300 seconds. Push the
Add button to update the CallManager with the directory number settings.
You have now configured the CallManager with a H.323 client and should be able to
register the TANDBERG system to it.
When the TANDBERG system is registered to a CallManager, it will be possible to
place and receive calls from this system to any other video and voice systems that are
registered on the same CallManager.
4.1.3.8
H.323 ID
H.323 ID is a feature allowing text names instead of E.164 numbers to be dialled. The
TANDBERG system will use the System Name as its H.323 ID. Even though one
cannot dial out with an H.323 ID via the remote control one can use the web interface or
the dataport. Other systems can also dial in using the H.323 ID.
4.1.3.9
Dynamic playout buffering
Shapes the incoming data for better playout and re-sequencing of packets delivered out
of order. This ensures better lip sync.
4.1.3.10
Asymmetrical media capabilities
Audio and video protocols can be fully asymmetrical.
E.g., the TANDBERG system can send H.263 and receive H.261 at the same time.
4.1.3.11
Diagnostic tools for IP
Q.931
To show Q.931 trace during a call you need to issue the command
syslog on
.
One can get traces for RAS, Q.931 and H.245 with this command. It is a complex
trace and requires an extensive knowledge in H.323 signalling to be understood.
Ping
Ping is used to see if the codec is able to reach a specific IP-address, using a
mechanism in IP called ICMP. If a codec is unable to register to its gatekeeper,
or if it is unable to dial a specific endpoint, one can use ping to see if there is at
least an IP-route to the gatekeeper or to the endpoint. In case you have problems,
