How to divert calls on O2
Send missed calls on your O2 mobile to another number while your phone still rings first. O2 uses the standard UK divert codes below, and so do networks that run on O2, like giffgaff, Tesco Mobile and Sky Mobile.
Checked 11 November 2026 against O2's own help pages. Networks do change things, so check with O2 if something doesn't match.
Replace NUMBER with the number you want calls to go to, for example your CallVest number. Type the code into your phone's keypad like a phone number and press call. You'll see a message on screen confirming it worked.
Divert when you don't answer
**61*NUMBER#
Your phone rings first. If you don't pick up, the call goes to the number you set. This is the one most trades use.
Divert when you're on another call
**67*NUMBER#
A second caller goes to the number you set instead of voicemail.
Divert when there's no signal or your phone is off
**62*NUMBER#
Lofts, basements and rural jobs. Calls go to the number you set.
All three at once
**004*NUMBER#
Sets no answer, busy and no signal in one go.
Check what's set
*#61#
Shows where unanswered calls are currently going.
Turn all diverts off
##002#
Cancels every divert. Your phone goes back to normal voicemail.
Does O2 charge for diverted calls?
Many O2 Pay monthly plans include unlimited UK minutes, and a diverted call counts as a normal call from your phone, so it's usually covered. If you're on Pay as you go or a plan with a minutes limit, diverted calls come out of your credit or minutes, so check your plan first.
How long does my phone ring before it diverts?+
Usually about 15 to 20 seconds. To change it, add ** and the number of seconds (5 to 30) before the #, for example **61*NUMBER**25#.
Does this work on giffgaff, Tesco Mobile and Sky Mobile?+
Yes. They use O2's network, and the standard codes on this page work the same way. If one doesn't, contact your network, as some plans restrict diverts.
iPhone: is there a setting instead?+
Yes: Settings, then Phone (or Apps, Phone), then Call Forwarding. But the iPhone setting forwards every call, so your phone won't ring at all. If you want your phone to ring first and only missed calls to be forwarded, use the **61* code from the keypad instead.
Android: is there a setting instead?+
Yes. Open the Phone app, tap the three dots, then Settings, Calls (or Supplementary services), Call forwarding, and choose When unanswered. The wording varies a little between Samsung, Google Pixel and other phones.
The code isn't working+
Check you've typed it exactly, with the number starting 07, 01, 02, 03 or +44, and pressed call. Some business tariffs and work phones have diverts locked by the account admin. CallVest customers: tell us your network and we'll set it up and test it with you on the setup call.
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