One Pager DFN Telephony – VoIP Centrex with NFON

Process diagram (A)

Information, notes and links

0. The participant (TN) is informed about the general conditions of the DFN Telephony service and its “VoIP Centrex” connection type.

1. Trial setup (optional; max. 4 weeks) – recommended

2. Service agreement between the participant and the DFN Association

3. Ordering of quantities and project-specific services
(special requirements, consulting services, etc.)

4. Deutsche Telekom provides the institute’s telecommunications manager with the relevant administrative information
(login details, troubleshooting process, dates, etc.)

5. The institute/user defines the required number range
(new telephone number, porting/migration of existing telephone number(s))

6. Initial setup of the institute on the NFON platform

7. The institute now assumes responsibility for independently managing the VoIP Centrex system (both functionally and commercially)

VoIP Centrex prerequisites

  • Connection to the X-WiN research network

  • Requirements catalogue (types of extensions and functions)

Number porting

  • From an external provider: lead time of 34 working days (Mon–Fri, 06:00–12:00)

  • Deutsche Telekom internal: 24 working days (Mon–Fri, 06:00–08:00)

Number restrictions

  • Telephone numbers are unrestricted by default

  • Restrictions can be requested from the DFN Association

Information material/links

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