A media gateway is used in telecommunication e.g. in next generation networks and in IP Telefony. In this context the gateway converts digital voice or picture information (media) from one network type to another. Normally a data transcoding comes along with that conversion.

The interface environment of our bintec routers and the possibility of using Digital Signal Processors in some model lines, afford us to advance this approach.

Our experience lead us to construe that theme in two different directions.

The Remote CAPI is multiserver and multiside capable, which means that several servers can share the ISDN interfaces on a bintec RT device and that a server can use several bundled bintec RT devices.

Voice and fax applications can transfer data simultaneously on all available channels. Thanks to the dedicated DSP hardware available for each channel, the entire system is not overburdened and the computing power remains available for all routing and VPN tasks. The quality of each fax connection is therefore consistently high, irrespective of the capacity utilisation of the rest of the system.

As the remote CAPI is a network application, which operates independently of the MS Windows© operating system software, it is ideal for server use. Consequently, CAPI applications can be installed and maintained without suspending operation and no reboot of the server is required. The software supports 16/32/64 Bit operating systems and applications. The remote CAPI is also available for Linux. Funkwerk can also supply the source code for embedded use.

This function is groundbreaking for the use of virtual machines. MS Hyper-V©, MS virtual PC©, VMware©, virtualBox© and other virtual platforms do not offer an option to connect ISDN cards. The bintec Remote CAPI avoids this problem and thereby allows fax and unified communication servers to be operated on virtual systems.

The following partners have already successfully certified our solution:
 

 

 

Telephone calls and fax transmissions (T.38) are transferred simultaneously between the IP network and the traditional telephone network. This can be carried out either directly as a terminal adapter (an ISDN telephone is registered with the VoIP provider) or using a PBX.
A traditional ISDN PABX can be coupled with SIP providers or a modern IP PABX can be operated on the ISDN S0/s2m exchange connection. Fax transmission over T.38 is supported in both scenarios. A fax device on the analogue connection of the traditional PABX can thus send and receive faxes over the SIP provider. This allows FoIP clients and servers in the LAN to fax over the ISDN exchange.
The G.711, G.726 and G.729A voice coding offered by the SIP trunking and DDI-capable Funkwerk Media Gateway can be adapted to suit your quality requirements and thereby ensure ISDN quality and high compression. Echoes are successfully suppressed in G.168.
Fax over IP, T.38, permits implementation of the analogue T.30 group 3 fax protocol.
Thanks to the intelligent quality of service bandwidth management and adjustment, you can prioritise voice traffic over normal data traffic over the internet, for example, and thereby always ensure sufficient bandwidth for your IP voice connections.

Media gateways are certified by:

VPN gateways are certified by Starface, amongst others, which realise secure IP PABX connections over VPN with VoVPN.

Naturally, the router functions are not reduced in any way.