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 ...

Also known as an ISDN LAN modem, it contains a BRI ISDN port and an Ethernet port. It may also provide several Ethernet ports, which lets it serve as a central Ethernet hub for a small workgroup.