by default there is no throttling (throughput variable is not set). but there is another variable called max-pending-submits set to 10 by default, which limits outstanding operating between SMSC and kannel to 10.
i.e. if kannel submitted 10 submit_sm (MT) he won't submit anymore he will wait some time to get an answer (wait-ack). 2013/7/23 Qqblog Qqblog <qqb...@ymail.com> > Our SMSC is smpp. I don't set any variable related to speed. Whether > Default speed of kannel is unlimited or not ? If not unlimited , any > variable will speed up the sending rate . Pls advise. >