Ericsson LBI-39224 Dynamic Channels, Dedicated Channels, Save and Send Dvim Configurations, 138

LBI-39224

Dynamic Channels

In this mode of operation, the DVIM processes Aegis calls that are not assigned to dedicated channels. The DVIM assigns the call to the first available non-dedicated channel. The only limitation with this mode of operation is all dynamic channels must have the same DVIU key.

To configure a dynamic channel, change the channel equipped field for that channel to a "Y" (this channel must be connected to a DVIU). Leave the Group Alias and Group ID fields blank when the channel equipped field is set to "Y" to indicate it is for dynamic allocation.

Dedicated Channels

Dedicated channels will always process calls assigned to that channel. This allows DVIUs to be dedicated to Aegis groups. Therefore, a system, agency, fleet or group call may be assigned a dedicated DVIM channel, each of which may have a different DVIU cryptographic key. For example, an agency may be assigned to channel 1 of the DVIM and a group within that agency may be assigned to channel 2 of the DVIM. The agency calls will be encrypted/decrypted by the DVIU connected to channel 1 of the DVIM and the group calls will be encrypted/decrypted by the DVIU connected to channel 2. The 2 DVIUs may have different cryptographic keys.

To dedicate a DVIM channel, set the Channel Equipped field to "Y" and select the desired group from the Group Alias drop-down list box. A warning message will be displayed if the group is already dedicated to a DVIM channel.

Undedicate

Choose the Undedicate button to undedicate a channel. The channel (if previously equipped) will become dynamic and the Group Alias and Group ID fields will become blank.

Save and Send DVIM Configurations

When the channels are configured, the configuration must be sent to the DVIMs. Each DVIM stores the database in its Non-Volatile RAM (NOVRAM) so it will remain present after resets. The data does not have to be uploaded again unless the configuration is changed or the

NOVRAM is reset on the DVIM.		Action	in both	the
DVIM Channel Configuration	dialog	box	and	the

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