kannel with clickatell on http connection

this configuration work for me

group = smsc
smsc = http
smsc-id = click
system-id = xxxx #apiid
system-type = clickatell
smsc-username = xxx # username
smsc-password = xxxx # password
send-url = "http://api.clickatell.com/http/sendmsg"
port = 13015
denied-smsc-id = modem
allowed-smsc-id = click
connect-allow-ip = "127.0.0.1;192.168.*.*;196.30.96.134"

196.30.96.134 this ip needed for callback from clickatell

and callback url can be set as
http://xxx.xxx.xxx.xxx:13015/cgi-bin/sendsms
which set to your ip address and port
this work with kannel 1.4.1 or newer

it will handle all needed parameters and processes