Digium TE121B (Single Span T1/E1/J1 PCI Express Card with Echo Cancellation
The Digium TE121B is a high-performance, cost effective digital telephony interface card with the power to create a seamless network, interconnecting traditional telephony systems with emerging Voice over IP technologies.
When the Digium TE121B is used in conjunction with Asterisk®, the Digium TE121 can be used to deliver a wide range of PBX and IVR services to the network or handset including Voicemail, Call Conferencing, Three-way Calling, and VoIP Gateways.