I just received a call no problem, and my trunk monitor shows nothing amiss. One suggestion I'd make is to also reboot any home equipment between your ATA and the internet (e.g. cable modem, home router). Do the classic cold restart (unplug modem, router, and ATA; connect modem, wait 30 seconds or boot sequence to complete, connect router, wait 30 seconds or boot sequence to complete, connect ATA, see if phone lights come on).