SMS Phone
Every SMS leaves from the school's own SIM
Pair a phone once. It collects messages from the school system and texts them from its SIM — no SMS company, no API keys.
Connect a new phone
One code, one phone, used once.
No code is waiting. Generate one when you are standing at the phone — codes last 20 minutes and work only once.
Install the agent on the phone: SMS app (Android) — allow installing apps from the browser once, then open it and type the pairing code.
Connected phones
Revoke stops a phone immediately.
No phone has been paired yet
SMS name
The school name at the top of every SMS. At most 20 letters, so each message stays one SMS.
Time between texts
The phone waits this long between two SMS, so the SIM never looks like a spammer. Takes effect on the phone's next check-in.
Now: 1 minute. A big batch moves slower on purpose — at one minute a text, 200 messages take about three and a half hours instead of a rush that gets the number blocked.
How a message reaches a SIM
The portal decides, the phone only carries it out.
- Someone sends a message from Send message. It is written into the message outbox straight away.
- A paired phone asks the portal for work, and takes the next messages.
- The phone texts each one from its SIM and reports back the SIM's own answer.
- The outbox shows the result, so the office can prove what left and when.
A phone belongs to this school alone. Its token can be revoked here at any moment, and a revoked phone can neither read nor send anything.