This feature does not support networking trunks with extension loop signalling and all analog tie and trunk signalling on the first connection (without voice connection).

This feature is not supported to Functional Devices (including SIP phones).

This feature is not supported if rerouting is active (AMO RICHT, REREOUT=YES). Use of AMO COSSU parameter LCRET=ALCROPT also behaves as if rerouting is active.

This feature is also not supported on networking trunks with extension loop signalling and all analog tie and trunk signalling on the consultation connection (with voice connection) and on the first connection via S0/S2 (without voice connection).

If an outgoing unanswered S0/S2 first connection (trunk call) enters busy state or the connection was released backwards, initiation of consultation call or call transfer is not possible.

If both connections (first connection via S0/S2 and the consultation connection) are in call state and the call is transferred by going on hook, the consultation connection is released forward and the call is signalled at the transferring station. If transfer was activated by key "NOT POSSIBLE" is displayed.

As the user interface shows "NOT POSSIBLE" in negative call transfer cases, call transfer should be activated by key instead of going on hook.

If call transfer is initiated by going on hook the user should make certain, that one of the connections is in talk state to avoid negative cases.

If the first connection is in talk state, consultation call and call transfer from the station as well as other services are handled as previously.

If the first call has not yet answered and the DIGITE activates the CLEAR/CANCEL or TOGGLE key, the consulted party is released and the station enters the current state of the first connection.

If the consulted party dials before the first connection answers, the following DAR are set to "NOT POSSIBLE":

If the feature "Direct trunk select" is active on the first connection, "Transfer before Answer ex Call State" cannot be activated.

Should the first connection lead to a text/fax server or to a VMS or PMS, which is known to the originating PBX, "Transfer before Answer ex Call State" cannot be activated.

If consultation was initiated before the first connection answers, the following reactions are carried out:

Consultation call via the same line is not possible. Instead, consultation call is established via a different B channel.

The feature "Transfer before Answer ex Call State" doesn't support DSS1 phones neither in their active (transferring party) nor in their passive (consulted party) function.