Sendsms gem helps you to send SMS via way2sms from ruby.
require "sendsms"
w2s = SendSms.new "username","password"
w2s.send "9995436867", "sending via sendsms gem!!!"
require "sendsms"
w2s = SendSms.new "username","password"
msisdn = ["9995436867","9037864203","9037107542"]
w2s.send msisdns, "sending via sendsms gem!!!"
require "sendsms"
w2s = SendSms.new "username","password"
msisdn = { 0 => "9995436867", 1 => "9037864203" , 2 => "9037107542"}
w2s.send msisdns, "sending via sendsms gem!!!"
require "sendsms"
w2s = SendSms.new "username","password"
msisdn = "9995436867;9037864203;9037107542"
w2s.send msisdns, "sending via sendsms gem!!!"
Please see licence