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COMpact 5200/5200R/5500R - Firmware V7.2 - Advanced Information V04 07/2018
Settings – Réseaux publics
Voix sur IP (VoIP)
Type d’analyse
Par défaut
Selects an evaluation method for phone numbers which will work for most
providers.
Default (using the From Header as a Screened Number)
Selects an evaluation method for phone numbers which will work for most
providers. The user provided number (unscreened number, corresponds to
CLIP no screening) in the "From" header is transferred to the network
provided number (screened number). The phone numbers can be used, for
example, for Call Through via VoIP.
Caution:
As soon as you have enabled this option, your
phone and PBX are open to attacks such as the transfer of
manipulated phone numbers.
•
To protect your phone and your PBX, ensure your VoIP
provider has integrated adequate levels of security in
their number presentation.
