The simple API to request a user's approval on anything via email + sms.

Ruby SDK for operating with Intis telecom API and sending SMS

send sms via e-freesms.com

API for sending or receiving sms

Ruby gem for EPochta API 3.0 - an email and sms service www.epochta.ru

Fetion SMS gem

Wrapper for fibo sms

Send SMS by kavenegar services in iran

Ruby SDK for www.smsbao.com

Rails Action Mailer adapter for balancing multiple providers across email, SMS, and webhook

Like ActionMailer, but for SMS

A RingCentral SMS adapter for Lita.

LittleSMS.ru API binding

Send SMS messages

Client for the Aspiro Merlin SMS gateway

Sends sms and calls to our Notification Gateway

Messente enables you to send SMS messages from Ruby applications.

Description of MetaSms.

Mobile Active SMS sender gem

A Ruby interface to the MobilePronto SMS gateway API.