ClickSend, the cloud-based SMS service offers an SDK in PERL language to integrate with the SMS API functionalities. Requirements include internet connection and a ClickSend account. No installation is needed. With ClickSend, users could benefit from custom integration, Microsoft Outlook SMS, and online SMS.
Pusher has announced an enhanced "Sandbox" plan to its tiered pricing program. The original Sandbox version permitted 20 concurrent connections, and 100,000 messages per day. Now, the plan allows 100 concurrent connections and 200,000 messages per day. The move is aimed to attract new developers.