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306730
2007 Mar 30
1
One way intermittent static to PSTN
We are having intermittent problems where the person we call reports
static when we place an outgoing PSTN call. Only the person called
hears static, to us the conversation sounds fine. Never happens on
inbound calls. It doesn't matter what channel you call from (IAX, SIP,
or Zap). We have a Sangoma A108D with hardware echo cancellation with 2
PRIs to Level3 and 2 PRIs to a Nortel Option