No Intramail. All calls DIL to IVR ext 200. 200 b/na to 201. 201 b/na to 202. 202 b/na to 201. This sequence is recommended by NEC for circular hunt. 200-202 are analog ports connected to IVR.
DIL overflow is ring-group 600. All pharmacy phones are in this ring group. If the IVR is busy or broken calls will ring the ring group. 0 out of the IVR also rings the ring group.
It all works except once the forwarding stops then only 200 is available. The next call in results in a key ring. Thanks for working with me on this!