You're a Bouygues Telecom customer (B&You, Sensation or Bouygues Pro plan) and you want to redirect your calls to another number while you're on the road, on a job, or permanently to an external answering service. Good news: Bouygues allows every type of forwarding on all its plans, at no extra cost.

This guide lists the USSD codes to dial, the iPhone and Android paths, and covers a feature specific to Bouygues: scheduled forwarding, which lets you activate forwarding only during certain time slots (evenings, weekends). Very handy if you want to switch to an AI phone answering service only outside business hours.

Which USSD code for Bouygues call forwarding

To set up unconditional call forwarding on Bouygues Telecom, dial **21*number# then press call. For forwarding only on no-answer, enter **61*number*11*20#. To turn it off, ##21# or ##61#. All standard GSM codes work on Bouygues, on both B&You and Pro.

Forwarding is free within mainland France to a Bouygues mobile. To another operator or a non-Bouygues landline, the forwarded call is deducted from your plan's minutes, exactly as if you had dialled that number yourself.

Bouygues code summary table

Forwarding typeActivation codeDeactivation code
Unconditional (all)**21*number###21#
No answer (20s)**61*number*11*20###61#
Busy**67*number###67#
Out of reach / switched off**62*number###62#
All conditional (busy + no answer + out of reach)**004*number###004#
Clear everything (forwarding + voicemail)##002#

To check that forwarding is active, dial *#21# (unconditional) or *#61# (no answer). The phone displays the configured redirect number.

Scheduled forwarding: the Bouygues exclusive

Since 2022, Bouygues Telecom offers a scheduled call forwarding feature in its "Mon Compte Bouygues" app, which no other consumer operator in France provides. You define time slots (for example: Monday to Friday from 7 p.m. to 9 a.m., and all weekend), and forwarding activates only during those windows.

To access it: open the Mon Compte Bouygues app, go to Ma ligne mobile > Services > Renvoi d'appel, then enable "Planifier" (Schedule). You choose the destination number and the time slots. Handy for redirecting to an AI phone answering service only at night and on weekends, without changing your daytime behaviour.

iPhone tutorial (Bouygues, B&You, Pro plans)

  1. Go to Settings > Phone > Call Forwarding.
  2. Toggle it on and enter the destination number.
  3. The handset-and-arrow icon appears in the status bar, confirming it's active.

For conditional forwarding, dial the USSD code manually in the Phone app (just like a regular number). Apple doesn't expose these options in Settings.

Android tutorial (Bouygues, B&You, Pro plans)

  1. Open the Phone app.
  2. Three-dot menu > Settings > Calls > Call forwarding.
  3. Select the type (Always forward, When busy, When unanswered, When unreachable).
  4. Enter the destination number and confirm.

On Samsung One UI, the option is sometimes called "Call forwarding" or "Transfert d'appel". On recent Pixel and Xiaomi devices, "Call forwarding". The functionality is identical.

Bouygues landline (Bbox)

For a Bbox landline, you have two options. The quickest: dial the USSD code directly on the DECT handset (yes, that works too). The most visual: log in to your Bouygues Telecom account, under Ma Bbox > Téléphonie > Renvoi d'appel.

Landline forwarding to a Bouygues mobile is free. To another operator, it's charged according to your Bbox plan (most include unlimited calls to French mobiles).

Points to watch

Voicemail vs conditional forwarding: if your voicemail is active and set to 5 rings (the Bouygues default), it picks up the call before no-answer forwarding at 20 seconds kicks in. Disable voicemail or shorten its delay (an option in the 660 service) if you want conditional forwarding to work.

Special case: the B&You Bloqué plans at €4.99 block outgoing calls beyond the plan allowance, but allow incoming forwarding at no extra cost. No risk of going over your plan with standard forwarding.

For multi-line Bouygues Pro professionals, forwarding is also managed from the Espace Pro portal, with advanced rules (forwarding by time slot, by day, to several numbers in cascade).

Check an active Bouygues forward

Dial *#21# for unconditional, *#61# for conditional no-answer, *#67# for busy. The phone immediately displays the configured destination number or "Disabled". You can also check the status of your forwards in the Mon Compte Bouygues app, under Ma ligne mobile > Services.

For a practical test, ask someone to call your number from another line and wait at least 25 seconds (conditional delay + switchover time). If you hear your AI phone answering service pick up instead of your usual voicemail, you're all set.

Forward to what?

Forwarding to a colleague, an associate or your own work mobile is useful in the short term. In the medium term, it just kicks the problem down the road: the target will be unavailable one day too. The real answer is an AI phone answering service that picks up 24/7, sorts the urgent job (leak, breakdown, accident) from the schedulable quote request, and sends you an SMS + email summary within the minute.

The key advantage of pairing Bouygues scheduled forwarding with an AI answering service: you keep your mobile for daytime calls (your usual customer relationship), and at night and on weekends calls are absorbed automatically by the AI. No need to switch it on or off manually — everything is handled by the time slots in the Mon Compte Bouygues app.

Further reading: understand how a callbot works, the cost of a human phone answering service for comparison, the GDPR compliance of a voice AI.

To try Accueil IA for free with your Bouygues number, create your account in 2 minutes and enjoy the free trial: around ten minutes of calls over 3 days, with no charge whatsoever. You set up the voice, the trade and the hours from the web dashboard without having to call a salesperson, and you can enable or disable forwarding whenever you like, with no action needed on our side.

One last word on number portability. If you leave Bouygues for another operator, your active forwards aren't carried over automatically: you have to reprogram them with the new operator. On the Accueil IA side, the redirect number doesn't change, so the only step to redo is "dial the USSD code" on the new line.