Configuring T1 CAS Trunks: Inbound E&M FGD and Outbound FGD EANA
Because E&M FGD supports only inbound ANI, a deployment requiring both inbound
and outbound ANI can combine an E&M FGD and FGD EANA trunk. The FGD trunk
will be used for inbound calls, and the FGD EANA trunk will be used for outbound
calls.