I am using http to send sms messages with the sms_send command with an RUT240.
http://1.2.3.4/cgi-bin/sms_send?username=xxx&password=xxx&number=12345678&text=xxx
This works very well most of the time, and I get the response "OK". However occasionally the message fails to send and I get the response "LIMIT". What does this mean please?
It is not because the message is too long.