The SMS Fusion API adds several messaging capabilities such as 2-Way SMS, automated sequences, real-time reporting, URL opt-out and personalized messages. The API allows developers to queue SMS messages and perform HLR look-ups. SMS Fusion offers 4 pre-paid plans which vary according to the developer's needs.
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The SMS Fusion PHP SDK by SMS Fusion adds enterprise grade SMS capabilities. Clients can benefit from virtual phone numbers for replies, easy to use automated responses and user engagement tracking. PHP 5.4+ is required.