Auerswald COMpact 5000R, Advanced Information

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SIP
COMpact 5000/R - Firmware V7.4A - Advanced Information V13 06/2019
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sent from a local IP address to the public network, the sending IP address
is swapped with the public IP address. This function is performed in the
reverse direction for the reply.
Disabled (use local address
NAT traversal is not performed by the PBX. The router which connects the
local area network with the Internet should be a properly functioning, SIP-
aware router which performs NAT traversal.
Enabled with use of STUN
NAT traversal is performed by the PBX. To achieve this, a STUN server
must also be specified for the VoIP provider.
Enabled
NAT traversal is performed by the PBX. To achieve this, the registrar for
the VoIP provider must be switched on. The SIP request also contains
an "rport" part in which the IP addresses used here (local, public) are
transported.
Note: If Enabled is selected: If problems occur with single-sided call
connections, use Enabled with use of STUN instead.
Caution: Each time a port is opened on the NAT router, this creates a
potential source of danger.
• It is essential you put additional protective measures in place.
utilisier l’adresse IP publique statique
Requirements:
• Registered fixed IP address (see
Settings )
NAT traversal is performed by the PBX. The VoIP provider requires a
connection via a static public IP address.