# Forward calls to a mobile > Send calls to a mobile, either for a whole number with Call diversion or alongside a person's other phones with an External number device. - URL: https://kb.voipcloud.online/au/call-flows/forward-calls-to-a-mobile/ - Section: Call-flow recipes - Type: guide - Applies to: All countries - Last reviewed: 2026-11-09 Calls to your business number ring a mobile. Pick the option that fits: | You want to… | Use | | --- | --- | | Send all calls to a number straight to one or more mobiles, with no office phones involved | **Option A:** [Call diversion](https://kb.voipcloud.online/au/pbx/accept-make-divert/call-diversion/) | | Ring a person's mobile as well as their Webphone or desk phone, or when they don't answer there | **Option B:** an **External number** device on their [User](https://kb.voipcloud.online/au/pbx/accept-make-divert/user/) | ```text Option A: Inbound number → Call diversion → No answer → Voicemail Option B: Inbound number → User (devices: desk phone + External number) → No answer → Voicemail ``` **On a free trial?** Forwarded calls are outside calls. On a free trial they only work once you're verified, and they end after 1 minute. Test forwarding properly once your account is active. See [Your free trial](https://kb.voipcloud.online/au/getting-started/free-trial/). ## Before you start - A phone number in an [Inbound number](https://kb.voipcloud.online/au/pbx/receive-calls/inbound-number/) object. - The mobile numbers you want to forward to. - For Option B, no extra device licence is needed: an **External number** device doesn't use one. There is a limit on how many external numbers each user can have; the PBX warns you if you reach it. - Calls forwarded to a mobile are charged as outgoing calls. Which call plan applies depends on the object that forwards the call: from a **User** (Option B), the user's call plan applies; from a **Call diversion** (Option A), the system-wide default pay-as-you-go call plan applies. Check the rates in **Billing** › **Rates search**. ## Option A: forward a number with Call diversion 1. On the **PBX** tab, drag [Call diversion](https://kb.voipcloud.online/au/pbx/accept-make-divert/call-diversion/) from the **Accept, make and divert calls** group onto the canvas and click the gear icon. 2. Enter a **Name**, such as "On-call mobile". 3. Click **Add**, enter the mobile number in **Phone number** and click **Add**. Add more numbers if several people should get the call. Your own inbound numbers can't be used. 4. If you added more than one number, choose the **Ring mode**: **Ring all** rings them all at once, **Linear** rings them one after another in the order listed. 5. Set each number's **Ring time**. 6. Turn on **Need to accept a call after the answer**. The person who answers must press **1** before the call connects, so the mobile's own voicemail can't pick up your callers. 7. Click **Save**. 8. Connect the **Inbound number** to **Call diversion**. 9. Connect the **No answer** path to a [Voicemail](https://kb.voipcloud.online/au/pbx/accept-make-divert/voicemail/), so callers can leave a message when nobody answers. ## Option B: ring a person's mobile with their other phones 1. Click the gear icon on the person's [User](https://kb.voipcloud.online/au/pbx/accept-make-divert/user/). 2. Under **Device configuration**, click **Add**, choose **External number**, enter their mobile number in **Phone number** and click **Add**. 3. Choose the **Ring mode for incoming calls**: - **Ring all**: every device, including the mobile, rings at once. - **Linear**: devices ring one after another in the order listed. Drag the mobile to the bottom to try it last. - **Twinning**: the first device rings first, then the others join it after the delay you set. 4. Set each device's **Ring time**. 5. Turn on **Need to accept a call after the answer on the external number**, so the mobile's own voicemail can't pick up your callers. 6. Click **Save**. 7. Make sure the **User** is connected to the **Inbound number** or to the object that sends calls to them, and connect its **No answer** path to a [Voicemail](https://kb.voipcloud.online/au/pbx/accept-make-divert/voicemail/). To stop calls reaching the mobile for a while, turn off **Incoming calls** for that device. The mobile is kept, ready to turn back on. **Note:** A user with an external number turned on always counts as online in a [Queue](https://kb.voipcloud.online/au/pbx/mass-incoming-calls/queue/). Queue calls will keep trying that user, even if their mobile is off. ## Apply configuration Click **Apply configuration** in the top-right corner. Nothing changes for real calls until you do. ## Check it works 1. Call your business number from a different phone, not the mobile you forwarded to. 2. The mobile should ring. Answer it. If you turned on the accept option, you'll hear a prompt: press **1** to connect. 3. Call again and let it ring out. You should reach voicemail, not the mobile's own voicemail. ## Variations - **Forward only after hours:** put [Time conditions](https://kb.voipcloud.online/au/pbx/conditions/time-conditions/) in front, and connect **Doesn't match** to the **Call diversion**. See [Business hours and after-hours calls](https://kb.voipcloud.online/au/call-flows/business-hours/). - **Office first, then mobile:** use Option B with **Linear** ring mode and the mobile last in the device list. - **Pause forwarding:** in **Call diversion**, turn off **Diversion** for a number to stop calls going to it without deleting it. ## Related - [Call diversion](https://kb.voipcloud.online/au/pbx/accept-make-divert/call-diversion/) - [User](https://kb.voipcloud.online/au/pbx/accept-make-divert/user/) - [Missed calls to voicemail](https://kb.voipcloud.online/au/call-flows/missed-calls-to-voicemail/) - [Public holidays and closures](https://kb.voipcloud.online/au/call-flows/holiday-closures/)