pChat is our web-to-web private chat product. It runs on its own domain and Android app, separate from Phone Agent.
Phone Agent (what you’re on now) is send-only: your code triggers SMS, WhatsApp, Telegram, email, and local notifications through an Android phone you own. No inbound chat, no conversation threads.
pChat is two-way private chat between web users, with translation, voice messages, attachments, and conversation history. If that’s what you need, head over there instead.