24.2 The Basics
SwyxFax is a component of SwyxWare and expands the PBX with the option of a central fax service. SwyxFax represents a client/server solution and it includes the following components:
SwyxFax Server as central fax server. It receives the fax documents and forwards them accordingly. SwyxFax Server is started as a service, just like SwyxFax Printer Gateway is started for central print.
Please note that within a SwyxWare installation only one SwyxFax Server may be present .
SwyxFax Client for the individual users together with the corresponding printer driver.SwyxFax Server
The SwyxFax Server is installed as a component of SwyxServer together on one computer, or as a separated service. All SwyxFax parameters are configured in the SwyxWare Administration.
SwyxFax Server is implemented as a service and is automatically started when Windows is started. The service is permanently available on the machine, even if no user is logged on to SwyxFax Server.
The SwyxFax Server is only contacted by the SwyxFax Client. In doing so, the SwyxFax Client can run on the same computer as the server or on any other Windows computer in the network. This makes transparent network operation possible using a central SwyxFax Server and any number of distributed SwyxFax Clients.
All faxes sent and received are managed by SwyxFax Server. SwyxFax Client calls the user-specific data from SwyxFax Server, whereby the data continue to be stored on the server. Therefore, it is only possible to operate SwyxFax Client if the SwyxFax Server is available in the network.
SwyxFax Server automatically provides its services throughout the entire network in LAN environments. No other special supplementary software is required.
SwyxFax Client
SwyxFax Client is the corresponding client software for SwyxFax Server. SwyxFax Client is installed as a component of the telephony client SwyxIt! Classic.
The SwyxFax Client logs on to the SwyxServer. The authentication uses the Windows user account or user name and password.
A printer driver is included in SwyxFax Client. This driver enables you to easily send faxes from other applications.
Fax Transmission
SwyxFax uses different ways to transmit fax documents, e.g. via a SwyxLink to other branch offices or to a terminal adapter within the network.
The ISDN cards and licensed voice channels, which are used by SwyxServer, are also used by SwyxFax Server during a transmission.
Some service providers also offer fax transmission over SIP according to the T.38 standard. You can find details about this in the Knowledgebase under
Forward Inbound Faxes
Received fax documents are always in a page-oriented DCX format (multi-page PCX format).
The associations between fax numbers and local recipients (SwyxFax Client), users' email addresses (Faxmail) or printers are defined in the forwarding table. The forwardings are specified in the properties of the individual user. See 11.2.2.3 The "SwyxFax Numbers" Tab.
When a fax is received for a specific fax number, the table is used to assign the fax to a recipient. The user will then see the received document either in the fax inbox of his SwyxFax Client or he will receive a Faxmail or will receive the document as a printout from a defined printer.
Please note that document printing is only available within a domain environment.
Faxmail
The fax documents you receive can also be delivered as a file per email. This requires that a corresponding SMTP mailserver is permitted for forwarding emails of the SwyxFax Server. SwyxFax Server takes the relevant parameters from the SwyxServer.
Fax stack
From SwyxWare Version 12.40 onwards, the existing fax stack will be replaced by a new stack by default in order to offer a future-proof Swyx Fax solution. The SpanDSP library from www.soft-switch.org is then used.
However, if you want to continue using the old fax stack, you can set this via the Windows registry. To do this, you must create the corresponding keys under "HKEY_LOCAL_MACHINE\SOFTWARE\Swyx\IpPbxFaxSrv\CurrentVersion\Options" and set them to true.
|
Key
(Reg_DWORD value 32-bit) (set if value ≠0) |
Description
|
Default value
|
|---|---|---|
|
DisableSpanDspG711Rx
|
SpanDSP is not used for receiving faxes via G.711 protocol
|
false
|
|
DisableSpanDspG711Tx
|
SpanDSP is not used for receiving faxes via G.711 protocol
|
false
|
|
DisableSpanDspT38Rx
|
SpanDSP is not used for receiving faxes via T.38 protocol
|
false
|
|
DisableSpanDspT38Tx
|
SpanDSP is not used for receiving faxes via T.38 protocol
|
false
|
|
DisableSpanDsp
|
Master key: If this key is set to true, it overwrites internally all keys mentioned here with true, so that SpanDSP is no longer used
|
false
|