SAP Message BCOMEC038 - The new call could not be initiated for the purpose of consultation

Diagnosis
In order to execute the requested action, a new call must be initiatedas a consultation. In the process, an error occurred.
Further information on the external software component:
V3
The server concerned is &V1&.

System Response
The consultation was not initiated.

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&