I have a T1 going into *, SIP phones Grandstream & Polycom IP500. Everything works great, but when I use the monitor command, or use IP Switchboard to record a call, the call has really loud static, and you can only make out maybe 1 or 2 words spoken. I have tried the IN-OUT, and combined wav files, and they are all bad. Running on Redhat 9 with SOX ,MPG123 0.59r, TE405p. These are calls going in, or out the T1. Any thoughts? Thanks much, Dan