ECS System Configuration for ICS-21 / 22 / 24 Panels The Eclipse Configuration System (ECS) software does not directly support the ICS-21 /22/ 24 headset panels. For correct operation the ECS system should be at version V4.2 or above In order to configure an ICS-2x panel the port is configured to drive an ICS-1008 panel with 14 keys (7 pairs of buttons). The ICS-2x channels are mapped onto the ICS-1008 keys starting from the left.  The user must programme a listen key on the top row and a corresponding talk key on the bottom row, Only the leftmost pair of keys on the ICS-1008 can be used to program the ICS-21; any other keys on the ICS-1008 will have no  affect. Only the leftmost two pairs of keys on the ICS-1008 can be used to program the ICS-22; any other keys on the ICS-1008 will have no  affect. Only the leftmost four pairs of keys on the ICS-1008 can be used to program the ICS-24; any other keys on the ICS-1008 will have no  affect.  There must be a corresponding listen key on the top row to the talk key on the bottom row of the ICS-1008 configuration for the ICS-2x panel to work correctly. If a talk key only is configured on the ICS-1008 in ECS, the Talk key on the ICS-2x will not latch. It should be noted that the panel signalling and control protocol used by the Eclipse matrix differs from the Matrix Plus 3. As a result the operation of these panels with an Eclipse matrix may be slightly different to their operation with a Matrix Plus 3.
Solution update May 2017: You can now connect ICS-22 panels to EHX V9.0 or later systems
Other panel types are now obsolete

Connecting an ICS-2x panel over Voice2 units The baud rate should be set to 19200, 8,N,1 .   Data framing should be set to NONE for VOICE framing setting.