Analogue Voice Modules and Cards (FXO)
For hub systems connecting to a traditional PABX with analogue telephone connections, the the Analogue Voice Modules or Cards are essential. The module can be installed into the V50plus chassis - or connected to a Standard CPU Card to create an Analogue Voice Card and installed within a V150 or V200 chassis.The Analogue Voice Card (FXO) offers 8 ports for the connection to a telephone switch. The sockets are delivered as RJ45 - also supporting RJ11.
The card contains the hardware for 8 full telephone ports, but a reduced cost 4 port configuration is shipped as standard, with channels 5, 6, 7 and 8 software enabled through the use of a feature key. This allows users to upgrade the number of voice ports they need at a time after initial installation, when needed. Users will just need a text-based feature key to be issued from Vocality.
Ports 1 to 4 offer full telephone interfaces, supporting both 2 wire and 4 wire communications: 2 wire for ringing telephones, and 4 wire for E&M switches and open communications circuits - popular in broadcasting applications.
Echo cancellation, SCIP (formerly FNBDT), fax and modem support are delivered on all ports as standard.
Each voice port can be soft configured with a number of compression algorithms. All of them are compatible with the Digital Voice Card, and G.729A is compatible with VoIP (Satellite Optimised SIP).
- G.723.1 delivers voice at 5.3Kbps and 6.3Kbps
- G.729A delivers voice at 8Kbps
- NetCoder delivers voice at 6.4Kbps to 9.6Kbps
- ADPCM and PCM are also available