If I am correct then, in order to resume an existing held call, we use RETRIEVE_CALL_REQ. So i created this function. Its almost similar to HOLD_CALL_REQ with the exception that we dont have to add the boolean in fixed part of the message.
However after repeated debugging, i am still not able to figure out why this function is not working. When i send a message to the server, i get the following response:
MsgType: FAILURE_CONF, BodyLength: 110
Invoke ID: 22
status: 3
text: com.cisco.Ged188.CRACTIInvalidMessageException: illegal message field of
type: CONNECTION_DEVID_TAG
However I checked, and i am sending the correct value of connection_device_id. Can someone please help me on this?