When establishing an ISDN connection to a remote site with PPP capability, you can transmit data more quickly: Data can be compressed and/or multiple B channels can be used for data transmission (channel bundling).
Connecting with channel bundling differs from "normal" connections in that not only one, but rather several B channels are used parallel for data transmission.
Channel bundling makes use of MLPPP (Multilink PPP). Of course, this procedure is only available if PPP is used as a B-channel protocol. MLPPP is useful for, for example, Internet access via providers who also operate MLPPP-enabled remote sites for their dial-in nodes.
Note: DSL channels can also be bundled by using MLPPPoE.
