Operator console
Campaigns and customer chat, sent from your own phone number.
Signalbox drives a mobile SMS gateway on your handset. Queue throttled marketing blasts on one side, answer replies in a live chat inbox on the other. No carrier account, no per-message middleman.
Campaign queue
Import contacts, build lists, schedule sends, and throttle output per minute.
Two-way inbox
Replies land in a WhatsApp-style thread view that updates in real time.
Gateway agnostic
Android SMS Gateway or SMSMobileAPI — swap providers from Settings.