It is similar that the typical HDLC scenario, but using frame relay.
The only special requisite is that you must disable keepalives.
With this technology you also can use pvc's, but the selected dlci is representative in both edges.
As in HDLC p2p links one of the edges must be the DCE and the other DTE.
R1(config)#interface Serial1/0
R1(config-if)# no ip address
R1(config-if)# encapsulation frame-relay
R1(config-if)# no keepalive
R1(config-if)#clock rate 64000
R1(config-if)#interface Serial1/0.1 point-to-point
R1(config-subif)#ip address 172.16.120.2 255.255.255.0
R1(config-subif)#frame-relay interface-dlci 101
R2(config)#interface Serial1/0
R2(config-if)# no ip address
R2(config-if)# encapsulation frame-relay
R2(config-if)# no keepalive
R2(config-if)#interface Serial1/0.1 point-to-point
R2(config-subif)#ip address 172.16.120.1 255.255.255.0
R2(config-subif)#frame-relay interface-dlci 101
