Auerswald COMpact 5200 Advanced Information page 529

You must enter all the extension numbers for a PTP connection that is
not running linear call distribution.
Sonnerie pour connexion PTP susmentionné
The ringtone specifies which sequence of sounds is used to signal external
calls to the phone numbers of the PTP connection to internal subscribers on
the PBX.
Notes:
Individual ringtones can be assigned to extension numbers that were
input in different ways.
See the Functions, Uses, Concepts > Ring tones section for information
about exceptions to signalling and sound sequences.
Appel direct (DDI)
If you want an extension number to be different from the ones used in linear
call distribution, or if an extension number is needed for a different function
(e.g. remote configuration, CLIP no screening), you must also enter it in the
COMpact 5200/5200R/5500R - Firmware V7.2 - Advanced Information V04 07/2018
Settings – Réseaux publics
Voix sur IP (VoIP)
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