When and why do I use the IBM MQ custom channel for WCF?

We can use the IBM MQ custom channel to send and receive messages between WCF clients and services in the same way as the built-in transports provided by Microsoft, enabling applications to access the features of IBM MQ within the WCF unified programming model.

Typical usage pattern scenarios for the IBM MQ custom channel for WCF are:

As an interface to web services hosted over IBM MQ (SOAP over JMS).
As a non-SOAP interface for transmission of native IBM MQ messages.