Thanks again Vivek - that did work. However ...
Although GRE was decoded the encapsulated protocols were not. GRE is encapsulating PPP, IP, UDP, and RTP.
Is it possible to see the GRE encapsualted protocols decoded? I've attached a frame for your reference.
The WireShark breakdown looks like this:
Ethernet II
Internet Protocol
Generic Routing Encapsulation
PPP In HDLC-Like Framing
Point-to-Point Protocol
Internet Protocol
User Datagram Protocol
Real-Time Transport Protocol
Thanks Again for all your help
-John