An alternative name for ISDN terminal adapter. The term is widely used, because the unit looks like a modem, connects to the same serial port as a modem and may support analog phones. See ISDN ...

This "dual analog" method, also known as "modem bonding," uses the Multilink PPP protocol and must be supported by the ISP. ISDN modems use channel bonding to split the data stream into two 64 ...