How to Divert Calls on BT Landline
Never lose another customer when you’re busy or on a job. Use these standard short codes to automatically route missed or rejected calls on your BT Landline line to your British AI receptionist.
Conditional Divert (Busy / No Answer / Reject)
This code diverts incoming calls to your receptionist only when you don’t answer, when your line is busy, or when you tap Decline. Normal calls ring your phone first as usual.
Dial this into your Phone keypad:
*21*+44XXXXXXXXXX#
Replace +44XXXXXXXXXX with the dedicated UK number assigned in your MyReceptionist dashboard.
#21#.Step-by-Step Setup Instructions
Get your AI number
Sign up to MyReceptionist in 5 minutes. You get a dedicated UK mobile number allocated instantly to your business.
Enter code on BT Landline
Open your Phone dialler, type *21*...#, and tap Call. BT Landline will show a success notification.
Test with another phone
Call your mobile from another device and reject it. Your AI receptionist answers in your company name and sends you a WhatsApp summary.
This applies to physical landline handsets. iOS security restricts executing MMI codes directly from web browser links. Simply copy the code, open your native Phone keypad, paste, and tap Call.
Other BT Landline Call Forwarding Codes
| Diversion Type | Activation Code | Cancel Code |
|---|---|---|
| All Calls (Unconditional) | *21*YOUR_NUMBER# | #21# |
| Only When No Answer (20s) | *61*YOUR_NUMBER# | ##61# |
| Only When Busy / Rejected | *67*YOUR_NUMBER# | ##67# |
| Check Divert Status | *#21# | — |
Looking for another UK network?
Ready to connect your BT Landline phone?
Get your UK receptionist live in 5 minutes. 59p a minute, no subscription, cancel anytime.