SwyxGate & PSTN Cards
- A SwyxGate SX2 Quad BRI card
Connection to the outside world
In order to connect an IP based phone system to the public switched telephone network (PSTN: ISDN or analogue lines) trunking gateways are used, which convert packet-based IP voice communications to circuit-based voice.
SwyxGate is a gateway which is integrated into the SwyxWare server platform. The SwyxGate converts incoming calls from the PSTN into IP packets and adapts outgoing calls from the IP network into signals and voice transmission to the PSTN. To interface with the PSTN, SwyxGate uses standard ISDN and analogue boards connecting to the PSTN.
Swyx is offering following ISDN and analogue boards:
| ISDN QuadBRI | GWY card ISDN SX2 QUAD BRI | 8 ISDN channels |
| ISDN Single PRI | GWY card ISDN SX2 Single PRI | 30 ISDN channels |
| ISDN Dual PRI | GWY card ISDN SX2 Dual PRI | 2 x 30 ISDN channels |
The number of simultaneous connections to the telephone network depends on the user's configuration. It is possible to run several ISDN and analogue cards on one PC / SwyxGate, but due to PC limitations, is it recommended to operate with a maximum of 76 ISDN channels on a single PC / SwyxGate. If more than 76 channels are required, this can be achieved simply by adding more separate SwyxGates to a SwyxWare installation i.e. by adding extra PCs to the system, configuring the additional PCs as separate SwyxGates and installing the desired number of ISDN cards on the SwyxGate PCs.
It is possible to combine different boards on one SwyxGate up to a maximum of four (logical) cards. Please see example below:
- Four SX2 QuadBRI
- Two SX2 DualPRI (one SX2 equals 2 logical boards)
- Two SX2 SinglePRI and two SX2 QuadBRI
- Two SX2 DualPRI and two SX2 QuadBRI
- Two SX2 SinglePRI and two analogue
The Swyx installation program makes adding separate SwyxGates very easy and a matter of a few clicks. This is done simply by putting the SwyxWare CD into the CD ROM drive on the PC where the separate SwyxGate have to be installed and follow the setup installation Wizard.
SwyxGate is the basic prerequisite for the least cost routing (LCR) function of the SwyxServer. If configured accordingly it can choose the most favourable network carrier in the telephone network. SwyxGate can be installed on a SwyxServer as well as on a stand-alone PC. The administration of SwyxGate is performed through Microsoft's Management Console (MMC).
SwyxGate can communicate with an existing traditional PBX, allowing customers to benefit from a step by step migration to IP telephony. In this scenario SwyxGate can assist with short-term bottlenecks that may be affecting the existing PBX.
Key benefits of SwyxGate:
- Cost-saving - shares same hardware as SwyxServer
- Easy configuration with Microsoft Management Console (MMC)
- Voice compression for efficient use of band-width
- Fax and DTMF support
- Secure Fax transmission by T.38 protocol (Fax-over-IP)
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