Setting Up Call Forwarding
Forward calls from your existing business number to your Infercall AI receptionist. Choose your carrier or provider below for step-by-step instructions.
Forwarding guidance for United Kingdom. Change country in the site header or the forwarding tool.
How Call Forwarding Works
Call forwarding lets you redirect incoming calls from your existing business number to your Infercall phone number. You can choose to forward:
- Let me answer first — Set up the provider-supported unanswered, busy and phone-off/no-signal conditions together. Your provider may support only some of them.
- Individual conditions — An advanced choice when you want only one kind of forwarding.
- All calls — Every call goes directly to your AI receptionist, for example in an optional finish-work routine.
For mobile providers in your selected country, use the call forwarding code generator to find provider-specific activation and cancellation codes for your number.
One setup. Clear undo beside it.
Use the forwarding tool to choose your mobile provider and your own Infercall number. Start with “Let me answer first”. It shows the shortest supported commands for that provider, the exact conditions covered and matching undo, with restrictions. Landlines and hosted phone systems have separate instructions further down this guide.
- Check and record the current destination for every condition before changing anything. Confirm plan restrictions, charges and the correct SIM.
- Follow each distinct provider-supported command manually and wait for carrier confirmation. There is no universal “all conditional” activation shortcut.
- Use status checks where published, then call your business number from another phone. Test each selected condition, normal ringing and voicemail/overflow.
- To undo, use the adjacent turn-off steps for those conditions. Stopping a divert does not necessarily restore your previous voicemail or destination. Restore recorded routes separately and test again. Broad resets are not the normal undo.
Download the selected setup and its matching undo on your own device. The private file includes coverage, restrictions, restoration warnings and your destination number. Follow the confirmation shown on your phone, then test the change.
For after-hours use, the tool also has a separate finish-work all-calls routine. In the morning, turn off that same all-calls setting—or leave Infercall answering. Do not cancel every divert.
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UK Mobile Carriers
Use your chosen provider's evidence and plan restrictions. EE and Three reference codes are explicitly labelled rather than presented as officially published carrier tables.
Vodafone (UK)
Forward All Calls
**21*[INFERCALL_NUMBER]###21#Forward When No Answer
**61*[INFERCALL_NUMBER]*10*[SECONDS]###61#Forward When Busy
**67*[INFERCALL_NUMBER]###67#Forward When Phone Is Off or Has No Signal
**62*[INFERCALL_NUMBER]###62#Include the country code in your destination number. Replace [SECONDS] with 5, 10, 15, 20, 25, 30. Let me answer first: 3 distinct command(s); code coverage: Unanswered, Busy, Phone off or no signal. Turn off only the conditions shown here. This stops that forwarding; it does not necessarily restore your previous voicemail or other destination. Every code here is from Vodafone UK's own support page. Vodafone UK Pay monthly. On Pay as you go you can only divert to voicemail. Vodafone UK diverts to UK landlines and mobiles.
EE
Forward All Calls
**21*[INFERCALL_NUMBER]###21#Forward When No Answer
**61*[INFERCALL_NUMBER]**[SECONDS]###61#Forward When Busy
**67*[INFERCALL_NUMBER]###67#Forward When Phone Is Off or Has No Signal
**62*[INFERCALL_NUMBER]###62#Include the country code in your destination number. Replace [SECONDS] with 5, 10, 15, 20, 25, 30. Let me answer first: 3 distinct command(s); code coverage: Unanswered, Busy, Phone off or no signal. Turn off only the conditions shown here. This stops that forwarding; it does not necessarily restore your previous voicemail or other destination. Standard UK network codes. EE doesn't publish them, but they're the codes its network uses, and EE customers confirm them on the EE Community forum. EE says diverts have to be set from your phone. Customer Services can't set them for you. EE diverts go to other UK numbers. The number is written in +44 form, as in EE's own guides. ##002# also removes your voicemail divert. Text VM ON to 150 to turn voicemail back on.
O2
Forward All Calls
**21*[INFERCALL_NUMBER]###21#Forward When No Answer
**61*[INFERCALL_NUMBER]*11*[SECONDS]###61#Forward When Busy
**67*[INFERCALL_NUMBER]###67#Forward When Phone Is Off or Has No Signal
**62*[INFERCALL_NUMBER]###62#Include the country code in your destination number. Replace [SECONDS] with 5, 10, 15, 20, 25, 30. Let me answer first: 3 distinct command(s); code coverage: Unanswered, Busy, Phone off or no signal. Turn off only the conditions shown here. This stops that forwarding; it does not necessarily restore your previous voicemail or other destination. O2's own guides publish the turn-on codes. The turn-off and check codes are the standard UK network codes from O2's Community guide; O2 doesn't list them on its help pages. O2 diverts go to UK landlines and mobiles. ##002# also removes your voicemail divert. Call 1750 free to turn O2 voicemail back on. Networks that run on O2 (such as giffgaff and Tesco Mobile) generally use the same codes.
Three
Forward All Calls
**21*[INFERCALL_NUMBER]###21#Forward When No Answer
**61*[INFERCALL_NUMBER]###61#Forward When Busy
**67*[INFERCALL_NUMBER]###67#Forward When Phone Is Off or Has No Signal
**62*[INFERCALL_NUMBER]###62#Include the country code in your destination number. Three doesn't publish a ring time for unanswered calls, and customers report it varies, so this code doesn't set one. Let me answer first: 3 distinct command(s); code coverage: Unanswered, Busy, Phone off or no signal. Turn off only the conditions shown here. This stops that forwarding; it does not necessarily restore your previous voicemail or other destination. Standard UK network codes. Three doesn't publish them. Three customers report them working on the Three Community forum, but some say diverts to another number stopped working for them, so test yours after dialling. Turn Wi-Fi calling off before you dial. Three customers report the codes don't work properly with Wi-Fi on. Three's price guide says it charges for each diverted call, depending on the number you divert to. If the code doesn't take, use your phone's Call Forwarding settings, or call Three on 333.
VoIP Providers
RingCentral
- Log in to your RingCentral admin portal
- Go to Phone System → Auto-Receptionist → IVR Settings
- Select your phone number or extension
- Under 'Call Handling', choose 'Forward calls'
- Enter your Infercall phone number
- Set the number of rings before forwarding (recommended: 3-4)
- Click Save
Vonage Business
- Sign in to the Vonage admin portal
- Navigate to Phone Numbers → Manage
- Select the number you want to forward
- Click 'Call Routing' or 'Call Forwarding'
- Choose 'Forward to external number'
- Enter your Infercall phone number with country code
- Set conditions (all calls, no answer, busy)
- Save your changes
8x8
- Log in to 8x8 Admin Console
- Go to Users → select your user profile
- Click 'Call Forwarding Rules'
- Add a new rule with your Infercall number
- Set the forwarding conditions
- Enable the rule and save
Business Phone Systems
Cisco Unified Communications
- Log in to your Cisco UCM Self Care Portal
- Navigate to Phones → Call Forwarding
- Enter your Infercall number in the 'Forward All' or 'Forward No Answer' field
- Set the no-answer timeout if applicable
- Click Save
Contact your IT administrator if you don't have access to the self-care portal.
Avaya
- Press the 'Feature' button on your Avaya phone
- Dial the call forwarding feature code (typically *2)
- Enter your Infercall phone number
- Press # to confirm
Feature codes vary by system configuration. Contact your IT team for your specific codes.
Microsoft Teams Phone
- Open Microsoft Teams
- Click your profile picture → Settings
- Go to Calls → Call answering rules
- Select 'Forward my calls'
- Choose 'Voice app' or enter your Infercall number
- Save your settings
Traditional Landlines
For BT Business phone lines, use the BT Business call diversion instructions. For a BT Digital Voice home service, use the Digital Voice guide. BT Cloud Voice, Featureline and other hosted systems have separate instructions.
Troubleshooting
Call forwarding isn't working
Use your provider's required number format: some require a national number, while others use a country code. Check the instructions above or the code generator. Wait for a confirmation tone or message after activating; some carriers require you to stay on the line for a few seconds.
Calls go straight to my carrier voicemail
You may need to disable your carrier's voicemail first, or set a shorter ring time for forwarding. Contact your carrier to adjust voicemail settings.
I'm being charged for forwarded calls
Most carriers treat forwarded calls as outgoing calls from your plan. Check with your carrier about forwarding rates. Consider using conditional forwarding (no-answer only) to minimize charges.
My carrier isn't listed
Check your carrier's current support instructions for your exact mobile, landline or hosted service. Do not use another carrier's codes as a substitute; forwarding eligibility, number format and cancellation codes can differ.