SMARTY Voicemail Not Working on OnePlus
SMARTY voicemail works via a call divert. If it has stopped, the divert has likely been cleared. This guide explains how to restore SMARTY voicemail on your OnePlus, set your PIN and access messages by calling 123.
- Restore voicemail divert
- Step-by-step fix
- Common causes
- Frequently asked questions
- Call your voicemail number directly to check it is set up
- Confirm voicemail number is stored correctly
- Check if call forwarding is incorrectly redirecting calls
- Reset voicemail via carrier settings or customer service
ℹ️ About SMARTY — Voicemail Not Working
SMARTY operates on the Three MVNO. SMARTY refunds unused data each month. No phone support — use help.smarty.co.uk live chat. APN is simply "internet".
Known OnePlus considerations: No phone support means for urgent issues you must use live chat at help.smarty.co.uk. EU roaming included on most plans.
- Support: help.smarty.co.uk (no phone support) — visit support page
- Network status: Check SMARTY network status
Restoring SMARTY Voicemail on OnePlus
Call 123 from your SMARTY SIM. If the call connects and asks for a PIN, voicemail is working but the divert may need restoring. If the call fails, proceed to the next step.
Dial **61*123*11*30# from your OnePlus phone dialler and press Call. This re-enables the voicemail divert for unanswered calls on SMARTY.
Dial **67*123*11*30# (busy) and **62*123*11*30# (phone off/no signal). This restores voicemail when your OnePlus is unavailable on SMARTY.
If voicemail asks for a PIN you do not know, call smarty.co.uk live chat to reset it. SMARTY will verify your identity before resetting the voicemail PIN on your account.
The SMARTY app or Visual Voicemail feature on your OnePlus may give direct access to messages without a PIN. Check your SMARTY app for a voicemail or messages tab.
If using codes, ensure the voicemail number is in full UK format. Some OnePlus models require a + prefix: +447782333123 instead of 0 or just 123.
If voicemail has never worked or was recently lost after a plan change, call smarty.co.uk live chat. SMARTY may need to re-provision the voicemail service on your account.
Common Causes of This Issue on SMARTY
| Cause | Likelihood | Fix |
|---|---|---|
| Divert cleared | High | Re-enable with dial code |
| Wrong voicemail number | Medium | Use correct number for carrier |
| PIN locked | Medium | Reset PIN via support |
Frequently Asked Questions
What is the SMARTY voicemail number?
The SMARTY voicemail access number is 123. Dial this from your SMARTY SIM to check messages. If calling from abroad, dial the full international format: +44 followed by the number without the leading zero.
How do I set up voicemail on SMARTY?
Dial 123 from your OnePlus and follow the recorded prompts to set your PIN and record a personal greeting. If voicemail is not set up, callers will hear a default SMARTY greeting. You only need to do this once.
Why has SMARTY voicemail stopped working?
Voicemail on SMARTY works via a call divert. If the divert was cleared — by a network reset, SIM swap, or firmware update — voicemail calls will ring indefinitely instead of going to the mailbox. Re-enable using dial code **61*123*11*30# on your OnePlus.
Still having trouble? Contact SMARTY support on smarty.co.uk live chat or visit our contact page for further help.