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Glossary
Gigaset S675/S685 IP / GBR / A31008-xxxx-xxxx-x-xxxx / glossary.fm / 5/18/09
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Ringback when the call is not answered
= CCNR (Completion of Calls on No Reply). If a participant does not respond
when called, a caller can arrange an automatic ringback. As soon as the desti-
nation phone has completed a call and is free again, the caller is rung back. This
feature must be supported by the exchange. The ringback request is automat-
ically cancelled after about 2 hours (depending on the VoIP provider).
Ringback when the number is busy
= CCBS (Completion of Calls to Busy Subscriber). If a caller hears the busy tone,
he or she can activate the ringback function. As soon as the connection is free
the caller is rung back. As soon as the caller lifts the receiver the connection is
made automatically.
S
Server
Provides a service to other
). The term can indi-
cate a computer/PC or an application. A server is addressed via
/
.
SIP (Session Initiation Protocol)
Signalling protocol independent of voice communication. Used for establishing
and ending a call. It is also possible to define parameters for voice transmission.
SIP address
.
SIP port / Local SIP port
(Local)
that is used to send and receive SIP signalling data for VoIP.
SIP provider
SIP proxy server
IP address of your VoIP provider's gateway server.
Static IP address
A static IP address is assigned to a network component manually during net-
work configuration. Unlike a
, a static IP address does not
change.
STUN
Simple Transversal of UDP over NAT
NAT control mechanism.
STUN is a data protocol for VoIP telephones. STUN replaces the private IP
address in the VoIP telephone data packets with the public address of the
secure private network. To control data transfer, a STUN server is also required
on the Internet. STUN cannot be implemented with symmetric NATs.
See also:
.
Subnet
Segment of a
.