Chapter 13 VoIP
Voice over IP (VoIP) uses the IP protocol for voice and video transmission.
The main difference compared with conventional telephony is that the voice information is
not transmitted over a switched connection in a telephone network, but divided into data
packets by the Internet protocol and these packets are then passed to the destination over
undefined paths in a network. This technology uses the existing network infrastructure for
voice transmission and shares this with other communication services.
13.1 Settings
You set up your VoIP connections in the VoIP->Settings menu.
You can telephone over the internet using all internally connected telephones. The number
of connections depends on various parameters:
• The availability of the system's free channels.
• The available bandwidth of the DSL connection.
• The configured, available SIP providers.
• The SIP-out licenses that have been entered.
13.1.1 SIP Provider
You configure the SIP provider you want in the VoIP->Settings->SIP Provider menu.
You change the status of the SIP provider by pressing the
button or the
button in the
Action column.
After about one minute, registration with the provider has taken place and the status is
automatically set to
(active).
13.1.1.1 Edit or New
Choose the
icon to edit existing entries. Select the New button to create new entries.
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