Supported Platforms | Sirrix Aktiengesellschaft

Which Linux distribution do you use for tests and development?

For development, we use the current Debian Testing version.

Do you plan support for FreeBSD or MacOS X?

No, currently there is no support planned. We are available to support you in questions of porting!

Is Trixbox supported?

Yes, current versions are supported.

With TrixBox 2.0 a problem may be caused by an incorrect header files package (asterisk-devel) which does not fit to the binary package.
To resolve the issue, please perform the following steps:

Update Asterisk and Asterisk-Devel
# yum install asterisk asterisk-devel
This should install the recent Asterisk binaries and header files (version 1.2.14).
Update chan_sirrix
# cd sirrix-pci/asterisk # make clean # make # make install
Reboot system
# reboot

Which Asterisk and kernel versions are supported by the latest driver?

The latest driver supports Asterisk 1.2.x and 1.4.x. We recommend the use of Linux kernel 2.6. Linux kernel 2.4 is no longer supported.

Is it possible to use a Sirrix card in an SMP system?

No, unfortuntately the current driver is not guranteed to work with SMP kernels. However, SMP support should be available soon.

Is the Sirrix.PCI4S0 working with Xen or other virtualisation technologies?

Running Asterisk without specific hardware drivers works "out-of-the-box". If you are only working with VoIP you only need a network interface which is virtualized by Xen.

In order to enable hardware access as well, you also need virtualization for the specific hardware or you run Asterisk in Dom0 which would not give you the virtualization advantage for Asterisk.

Sirrix AG is working in the EMSCB project together with universities and other companies. We also have contact to people of the OpenTrustedComputing project.

If you are interested in using the Sirrix.PCI4S0 hardware with virtualization technologies please contact our support team at support at sirrix dot com.

Does the Sirrix driver support conference channels?

Conferences with arbitrary many participants are possible with the standard Asterisk features.

Is PCI-X supported by the Sirrix card?

In principle the Sirrix.PCI4S0 is working in all PCI compatible mainboards. Since PCI-X is downward compatible, so the card will work without problems. However, on newer mainboards (e. g. with PCI-X) problems were encountered while using the older firmware version 040826. These problems are solved with firmware versions >= 050803. A firmware update can be done via CD-ROM which can be downloaded from our website. Please request the link from support (at) sirrix (dot) com

Is the Sirrix.PCI4S0 supported by the D-channel analyser?

Yes, the D-channel analyser supports Sirrix.PCI4S0. Further details can be found here

Are there problems if the card is not used in Germany?

The Sirrix.PCI-cards work fine if the provider is using the EuroISDN protocol (EDSS1, ITU-T Q.921/Q.931) or an ETSI equivalent protocol

Which ISDN protocols are supported by the Sirrix-card?

The Sirrix card drivers support the ETSI EuroISDN protocol (EDSS1). It won't work on DMS-100, 5ESS, NTT or other signalling protocols.

Does the Sirrix card support Q.Sig?

Yes, the Sirrix card drivers support basic call handling features. However, extended features are currently not supported. If you require specific features, please contact sales (at) sirrix (dot) com

Is call forwarding over the telephone switch of the provider possible with the Sirrix.PCI4S0 so that the actual number is obtained at the destination line?

CallDeflection (Mehrgeräteanschluss) as well as CallRerouteing (Anlagenanschluss) is possible with the channel driver for the Sirrix.PCI4S0 and Asterisk. With the two methods a call can be dynamically rerouted to a new number. Information regarding the dialplan commands can be found here

Is DID / DDI supported by the Sirrix.PCI4S0?

DID / DDI is possible with the Sirrix.PCI4S0 on BRI S0 lines if supported by the local Telco. In the "sirrix.conf" configuration file just configure a group with "number = 1234+" where "1234" is the base number of your external line. Then all digits dialed after "1234" are collected and used for calling an Asterisk extension.

Is it possible to use PCI4S0 with Hylafax using a CAPI interface?

There is no CAPI driver for Sirrix.PCI4S0. As far as we know, a software connection between Asterisk Hylafax currently is not possible. For receiving fax, we received very good results using the Asterisk application RxFax in connection with the SpanDSP library.

Does the PCI4S0 card support analog data transmission (fax, analog modem, etc.)? Does it only work between the ports on the card itself or can it be used in combination with Digium PRI cards?

Simple switching of analog data transmission is possible. It also works with other ISDN cards, but the switching delay will be higher (as Asterisk has to handle the data in software) which will limit the maximum transmission speed (FAX 9600 should work without any problem, FAX 14400 should be no problem as well). On a Sirrix<->Sirrix connection there is almost no delay as hardware PCM switching is used.