Has anyone ever run into this...
Client calls a specific external number 1-847-XXX-XXXX and they get a fast busy. They then wait a couple of seconds (literaly) and then press "redial" and the call go through ok. To add to the strange behavior when the call does get through you find your self listening to an IVR but seemingly not quite at the beginning.
If you hang up and wait a few more seconds and try calling the number again you get fast busy again. Wait a few more seconds and the call goes through again with the symptoms as described above.
It's bizarre and I'm have no idea what could account for this behaivor. Anyone have any ideas?