Call forwarding made simple: divert-when-busy codes for UK mobiles
Agentric Team ·
Most owners don't want the AI answering every call — they want it catching the ones they'd otherwise miss. Conditional call forwarding is exactly that, and it's built into every UK mobile network. No apps, no new numbers.
How it works
You dial a short GSM code telling your network: "when I'm busy / don't answer / unreachable, send the call to this number instead" — where "this number" is your Agentric line. Callers never notice the hop.
The standard codes (EE, O2, Vodafone, Three and most MVNOs)
When busy (you're already on a call): * * 61 * [agentric number] # — wait, that's "when unanswered". The exact trio:
- When unreachable/off:
* * 62 * NUMBER # - When unanswered (rings out):
* * 61 * NUMBER #— add* * 11 * SECONDS #style suffix on some networks to set ring delay (usually 5–30s). - When busy:
* * 67 * NUMBER # - Forward everything:
* * 21 * NUMBER #
To cancel all forwarding: # # 002 #. To check status: * # [code] # (e.g. * # 61 #).
Syntax varies slightly by network — the Agentric setup page shows the codes for yours, and your network's support pages confirm them.
The recommended setup for most trades
Forward when busy + when unanswered. You answer when you can; the AI catches what you'd miss. You keep your number, your habits, your control — and every ring still gets answered.
Landline / VoIP users
BT landlines support the same star-code diverts; VoIP providers (Voipfone, Yay, etc.) expose forwarding in their dashboards — point it at your Agentric SIP URI or the number we provision.
Common gotchas
- "When unanswered" delay: 15–20 seconds is usually right (3–4 rings — enough for you, short enough for them).
- Dual SIM phones: set forwarding on the line that takes business calls.
- Test it: ring your own number from another phone while yours is engaged.
Two minutes of dial codes is the entire setup. After that, "missed call" stops existing.