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title: "Service Numbers"
canonical: "https://help.telegra.de/space/MCCE/9561348867036/Service%20Numbers"
format: markdown
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Administrators can assign call flows to service numbers assigned to the company by telegra.

Administrators must have the ***Service Numbers: Modify*** access right to manage service numbers.

![Define service numbers in telegra Contact Center](media://132060b2-26c9-4303-a4ae-e7ba4461366e)


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### Service Number Management:

- Navigate to ***Call Handling → Service Numbers***. A list of service numbers currently assigned to the company is displayed.
- Select the appropriate service number from the list.
- You can change the name of the service number if necessary.
- You can also change the description of the service number.
- Select a **call flow** to be used by the service number.
- To specify when a service number will be assigned either a different call flow or the same call flow with changed parameters, click the desired date and time for the activation time.

![Set activation time for service numbers](media://e73508e7-3824-4240-acd2-54eaa15f7a25)



> 📝 **Note: **If you do not set an activation time, all call flow changes will be applied immediately.

- Do not forget to **save** the settings.

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