1-10
Voice over IP
1.4.2
The central position of the Swyx VoIP Router
Swyx VoIP Router take up a central position in the switching of
telephone calls between internal and external subscribers over the
different channels of communication. Depending on the model and
equipment, the devices interconnect the following communication
participants and channels into a common telephone infrastructure.
1. Internal VoIP terminal devices connected to LAN, WLAN and
DMZ, such as SIP telephones and SIP softphones
2. The internal telephone infrastructure with ISDN or analog PBX
and ISDN and analog telephones
3. Analog terminal devices, internally connected either into the
ISDN network via a PBX with a/b ports, or alternatively into the
VoIP network over an ATA (Analog Telephone Adapter)
4. External SIP providers and all of the external subscribers attai-
nable via them
5. Upstream SIP PBXs with all of the internal and external subscri-
bers attainable through it
6. The external telephone world via an exchange line or upstream
PBX, and all of the external subscribers available via the land-line
network
Swyx VoIP Router
Internet
VoIP subscribers
VPN tunnel
VoIP subscribers
Swyx VoIP Router
ISDN PBX
ISDN telephones
Analog fax
machines and
telephones
Analog PBX
PSTN
Example: Sites with ISDN or analog lines
Analog
telephones
Summary of Contents for SwyxConnect 1722
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