Hi all, OK, I fixed this issue. Our SMSC would refuse sending ACK's if we send them too many messages per second as our configured throughput. Setting the relevant SMSC options in kannel.conf solved it:
throughput = 5 flow-control = 1 Maybe this helps anyone else, too. Dave > Hello, > > I have kannel 1.3.1 set up and running. Sending single messages works > perfect. However, I have a problem sending SMS to multiple recipients > (around 50-100) at once. Some messages get delivered most of 'em don't. I > see the following warning messages in the logs: > > 2003-11-19 17:33:07 [6] INFO: EMI2[IP-Address:Port]: closing connection. > 2003-11-19 17:34:07 [6] WARNING: EMI2[IP-Address:Port]: received neither > ACK nor NACK for message 19 in 60 seconds, disconnecting and reconnection > > What does it mean? Are the messages lost? In kannel DLR's for all messages > are created and do not get updated anymore. > > Our SMSC lets us send 5msg/sec. I haven't set the throughput option for > the SMSC configuration in Kannel. Could that be the reason for the > failure? > > Dave >
