Installation Instructions

120

Glossary

Gigaset N720 DECT IP Multicell System / engbt / A31008-M2314-L101-6-7619 / Glossary.fm / 29.08.2016

Version 2, 06.08.2010

Music on hold

Music that is played while you are on a Consultation call or during Call swapping.

The waiting participant hears music while on hold.

NAT

Network Address Translation

Method for converting (private) IP addresses to one or more (public) IP addresses. NAT

enables the IP addresses of Network subscribers (e.g., VoIP telephones) in a LAN to be

concealed behind a shared IP address for the Router on the Internet.

VoIP telephones behind a NAT router cannot be reached by VoIP servers (on account

of the private IP address). To "get around" NAT, it is possible to use either ALG in the

router, STUN in the VoIP telephone, or for the VoIP provider to use an Outbound

proxy.

If an outbound proxy is made available, you must allow for this in the VoIP settings for

your phone.

Network

Group of devices. Devices can be connected in either wired or wireless mode.

Networks can also differ in range and structure:

– Range: local networks (LAN) or wide-area networks (WAN)

– Structure: Infrastructure network or ad-hoc network

Network subscriber

Devices and PCs that are connected to each other in a network e.g., servers, PCs and

phones.

Outbound proxy

Alternative NAT control mechanism to STUN and ALG.

Outbound proxies are implemented by the VoIP provider in firewall/NAT

environments as an alternative to SIP proxy servers. They control data traffic through

the firewall.

Outbound proxy and STUN servers should not be used simultaneously.