Telephony Cards

Support 1 E1/T1 Port

Compatible with PBX-C302 and PBX-C503 to Expand PBX Functionality

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Full Plug-and-Play Support From the Web GUI

Support 2 FXO and 2 FXS Ports

Compatible with PBX-C301 / C302 / C503 to Expand PBX Functionality

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Full Plug-and-Play Support From the Web GUI

Support 4 FXO Ports

Compatible with PBX-C301 / C302 / C503 to Expand PBX Functionality

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Full Plug-and-Play Support From the Web GUI

Support 4 FXS Ports

Compatible with PBX-C301 / C302 / C503 to Expand PBX Functionality

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Full Plug-and-Play Support From the Web GUI

Support 4 T1 Ports

Compatible with PBX-U502 and PBX-U503 to Expand PBX Functionality

Hot-Swappable for Flexible Configuration

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Support 4 E1 Ports

Compatible with PBX-U502 and PBX-U503 to Expand PBX Functionality

Hot-Swappable for Flexible Configuration

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Support 4 FXS and 4 FXO Ports

Compatible with PBX-U502 and PBX-U503 to Expand PBX Functionality

Hot-Swappable for Flexible Configuration

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Support 8 FXS Ports

Compatible with PBX-U502 and PBX-U503 to Expand PBX Functionality

Hot-Swappable for Flexible Configuration

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs

Support 8 FXO Ports

Compatible with PBX-U502 and PBX-U503 to Expand PBX Functionality

Hot-Swappable for Flexible Configuration

Replace Analog Line Connections with SIP Trunking to Allow Reduced Call Costs