JMS Topics on the broker gateway not being listed


I am using wM 7.1.2 and am not able to register a JMS topic on the broker gateway between the territories.

I have 2 territories that I am connecting using a gateway.
In the gateway I can see all the wM publishable documents being listed from the brokers on the territory, but cannot see the JMS topics in the list.

Is it possible to connect 2 broker territories using a gateway to transmit messages being posted to a JMS topic in 1 territory ?

Any help would be really appreciated.