Altesys VoIP Gateways are professional solution that can connect analog interface phones and fax machines devices to a Voice over IP exchange.  They are supplied with FXS and FXO ports, plus an Ethernet 10/100 port and can be connected to a local or remote VoIP exchange or telephony provider. Supplied with FXS ports that connect traditional telephone devices to your Voice Over IP exchange, the ATA adaptors convert the digital signal to analog (and vice versa), and allow you to see your traditional telephone as an internal extension of the exchange.  An economical and functional choice that allows the move to VoIP technology without necessarily having to substitute existing plant.

FXS Ports for connecting traditional telephone devices to Voice Over IP exchanges.  They convert the digital signal format to analog (and vice versa) and allow you to see your traditional telephone as an internal extension of the exchange.  This enables the move to VoIP without necessarily having to substitute existing plant infrastructures.
FXO Ports for connecting IP devices to analog PSTN network or to a traditional exchange. 

2 FXS VoIP Gateway.
4 FXS VoIP Gateway.
1 FXS 1 FXO VoIP Gateway.
2 FXS 2 FXO VoIP Gateway.
2 FXO VoIP Gateway.
4 FXO VoIP Gateway.
8 FXS VoIP Gateway.
24 FXS VoIP Gateway.
24 FXO VoIP Gateway.
12 FXS 12 FXO VoIP Gateway.
ATA 1 FXS VoIP ATA171 Gateway.
ATA 2 FXS VoIP ATA172 Gateway.