OpenVox D110E 1 Port T1/E1/J1 PRI PCI-E Card / Asterisk / Trixbox / VOIP D110E 1 Port T1/E1/J1 PRI PCI-E card Single T1/E1/J1 port with PCI-Express interface for high performance voice and data applications Up to 30 Simultaneous voice calls VoIP Gateways (support SIP, H.323, and IAX) Voice-over Internet Protocol (VoIP) Services