HP — T.30 protocol trace

Table 22. Fax receive error codes (continued) Error code Error definition Solution 238 239 (ECM error) 240 (ECM error) 241 (ECM error) The sending fax machine sent an unexpected communication. None. This is a defect in the remote sending machine. 242 The remote fax machine is attempting to receive instead of send. Both machines have attempted to start a reception at the same time. It is possible to accidentally initiate a fax reception after dialing on many machines, if there is no paper in the machine or if the paper is not correctly loaded and cannot be sensed by the appropriate document sensor.

Ensure that a document is ready and correctly loaded in the transmitting fax machine and that the remote machine is attempting to initiate a transmission and not a reception. 243 244 The user of the remote machine has pressed that machine's top key causing the session to be prematurely terminated. -Or- The remote fax machine determined that there was a feature incompatibility between the two machines and has terminated the session. An example would be when the local machine wanted to initiate polling, but the remote machine did not support this mode of operation.

1 Confirm that the remote user is not inadvertently attempting to poll transmit from the local machine, instead of transmitting to the local machine. This mode of operation must be specially configured on the local machine. If poll transmission from the local machine is the desired mode of operation confirm that the local machine has been configured for this operation. 2 Reconfigure the local fax machine to use different configuration settings, toggle the ECM state and/ or select a slower reception speed. 245 246 (ECM error) The user of the remote machine has pressed that machine's Stop key causing the session to be prematurely terminated.

1 If the document was large, ask the remote user to retransmit the document as two or more smaller documents. The local machine has been “holding off” the remote machine during reception of a large and/or complex document because of lack of available memory. This hold off time has exceeded the timeout (typically 60 seconds) used by the remote machine and it has terminated the session. 2 Disable ECM and reattempt the fax reception. 247 - 251 The remote machine appears to be stuck “on.” None. EN Troubleshooting tools 213