SAP Message BCOMEC025 - Extension &1 is not connected with the call

Diagnosis
In connection with a call, you tried to execute an action on theconnection &V1&. This connection is not connected with the call. Theaction can, therefore, not be executed.
Further information on the external software component:
V3

Procedure for System Administration
The error can occur in 2 different places:
1. In the connected gateway
2. In the underlying CTI software
In this case the error occurred in (&V4&).
The return code for the underlying CTI software is: &V2&