*******THIS PRICE IS FOR 3 FSV-4PFS UNITS******* The FSV-4PFS is a 4 Port T1/E1/BRI Failsafe Switch. It will switch 4 trunk lines between two ... more info
Sangoma A104X QuadT1/E1 AFT Interface Card - Asterisk The Sangoma A104 is an updated, quad port version of Sangoma's range of advanced, flexible ... more info
Zapata Telephony Tormenta III PCI Cards are 4 Port T1 or E1 PCI Interface Cards Primarily designed for the Asterisk(tm) PBX.. Similar to the TE410P ... more info
BUY TWO 4 PORT INTERFACE CARDS, GET THE FSV-4PFS FOR A DOLLAR! or BUY ONE 4 PORT INTERFACE CARD, GET THE FSV-4PFS FOR 50% OFF! The FSV-4PFS is a 4 ... more info
The TE4xxP supports E1, T1, and J1 environments and is selectable on a per-card or per-port basis. This feature enables signaling translation ... more info
The FSV-4PFS is a 4 Port T1/E1/BRI Failsafe Switch. It will switch 4 trunk lines between two redundant phone switches at Layer 1. The Primary (MAIN) ... more info