Kannel
Open Source WAP and SMS Gateway
14 Alternatives To Kannel
Handcent SMS
Handcent SMS is a free enhanced SMS and MMS application for Android.
Jasmin SMS Gateway
Jasmin is a very complete open source SMS Gateway with many enterprise-class features such as:
KAPSYSTEM
KAP Computer Solutions Pvt. Ltd.,
MessageMedia
MessageMedia offers SMS software and solutions for businesses.
Nexmo
Nexmo is a simple two way SMS API with global reach and wholesale rates
Spring Edge
Spring Edge offers voice, messaging and authentication API’s for business applications.
Swift SMS Gateway
SMS Gateway is your bridge between the Internet and the world of cell phone SMS text messaging.
TargetEveryOne
TargetEveryOne helps companies build customer relationships and increase sales.
TextMagic
TextMagic is a business text-messaging service for sending notifications, alerts, reminders, confirmations and SMS marketing campaigns.
Twilio
Brings voice and messaging to your web and mobile applications.
UltraSMSScript
UltraSMSScript is a business text messaging & SMS marketing self-hosted software platform where you only pay a 1-TIME fee for the software and the WHOLESALE costs of texts. Start your own white label SaaS SMS Marketing business.
Wavecell
Wavecell simplifies real-time cloud communications using SMS, Chat Apps, Video Interaction and Voice solutions.
mjoy
mjoy is a free messaging application allowing its users to send unlimited text messages to any mobile number currently registered by any cellular service across the globe.