Auerswald COMpact 3000 analog Operating Manual page 597

Glossary
Terminology and Functions
S
SIP Port
The SIP port is entered as the port of the local system which has to be used as the output port
for the SIP transfer.
SIP-DDI (SIP Trunking)
Some VoIP providers also support a VoIP point-to-point connection with a direct extension
option. The provider allocates a PBX base number with additional extensions (DDI),
e.g., 9200–0.
Soft Call
With the soft call function, a user can use the Web interface of the PBX to dial an external
telephone number from the telephone book, the call data list, an RSS feed or by entering his
own telephone number. To do this, the user must log into the Web interface with his user
password.
Splitting
Splitting is the switching between two calls. As opposed to a conference call, you can only
speak to each communication partner by going back and forth between the two. When you
speak with one communication partner, the other call is kept on "hold".
STUN
Using STUN (Simple Transversal of UDP over NATs), the public IP address of a DSL
connection can be determined. To do this, a STUN request is sent to a STUN server, which
then shares its own IP address allocated by the VoIP provider with the DSL connection.
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COMpact 3000 analog/ISDN/VoIP - Firmware V4.0 - Operating Manual V06 12/2020