I have a CS1000 with rel 5.5 and we use the 1140E phones. Our system was installed in Aug of 08 and the 500+ 1140E phones were installed then as well. The mfg date of the phones are 8/08 and for the past 6 months I have had over 50 phones go bad. Most of them are the lower buttons, handsfree, # sign, 9 key, 0 key. Has anyone else had this problem or know of a known defect? I know Nortel is gone, but was wondering if there was any kind of recall.