Partner R6, 206, Mail VS in 5 slot carrier- There was static on each extension -I replaced the R6, same static heard on all extensions. switched back to original R6 cpu. After unplugging each line and each station, one at a time - no change until w/power off, I unseated the Mail VS,power on, and all static was gone. I reseated the Mail VS and same static sound returned to ext 11 only, unseat Mail VS - static gone reseat Mail vS static return on ext 11, only. So I connected ext 11 to port 21 - mostly clear - there is some minor tone noise in the background of all ext, and more static on all extensions only when a call comes in. Is Mail VS injecting static? Any ideas would be most helpfull.
Thank you

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