Diagnosis
The subscriber to the call on hold is no longer valid. They may havehung up. Therefore, it is no longer possible to transfer the call, toinitiate a conference or to switch between an active call and a call onhold.
Further information on the external software component:
V3
The server concerned is &V1&.

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&