
First steps
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IP VCR: if you have users who need to upload recordings, configure active connections or change
settings, they will need a user account
MCU specific user fields
A number of fields appear in the MCU Add User page only. These work together.
It is possible to associate voice-only endpoints (via the E.164 phone number) with a user. If the user
calls in from this number the MCU identifies the call as being from the user. If the following fields are
then also configured for the user account, the MCU will know how to treat the call
Associated video endpoint — if this is an endpoint that you configured previously, then the MCU will
call out to this video endpoint on receiving an audio-only call from the E.164 number. This allows the
user to fully participant in a conference by talking and listening on the telephone but viewing the
conference video on the configured video endpoint. Moreover, the audio and video streams are
associated - for example, the volume that the participant talks with on the telephone is considered in
the same way as other participants when the MCU decides who appears in the largest video pane.
(There are different types of endpoint - go to Endpoints and see the online help topic “Displaying
endpoint list”)
Upload bit map — if you upload an static image after the user has been created, the MCU will display
this picture of the user (instead of a video stream) if they are participating as an audio-only participant
Port reservation (MCU only)
MCU has two types of ports: voice-only and video ports (that accept both video and audio). By default,
port reservation is disabled and the MCU will allocate the most appropriate type of port to each endpoint
until all the ports of that type are allocated. It will then allocate an audio-only port to an endpoint that can
support both video and audio until all the ports on the MCU are in use — and equally, if only video ports
are available, it will allocate a video port to an audio-only device until all are in use. It is not possible to
guarantee how many participants will be able to join a conference at any time because you cannot guarantee
how many ports will be used by other conferences.
However, if port reservation is enabled then this behavior changes. When you schedule a conference you
must specify the number of audio-only and video ports to reserve. The MCU will not allow you to specify a
number that would take the total port count during the conference to more than the MCU has. When you
display the conference list the number of participants is displayed as A/B where A is the number of active
participants and B is the configured limit. See the online help topic “Displaying conference lists”.
The maximum number of user accounts on all Codian MCUs and IP VCRs is 200 user
accounts.
The maximum number of user accounts on the ISDN gateway is 10 and there are only two
privilege levels: admin and list only (for the guest user that allows you to see basic details
about active calls).
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