You don't state this, but the assumption would be that your external calls are DAHDI based, so you might need to tweak txgain in dahdi.conf.
_____ From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of hin lee Sent: Friday, January 29, 2010 12:08 PM To: Asterisk Users Subject: [asterisk-users] microphone on Polycom 550/650 I have quite a number of users complaining that when they are using handsfree to talk over a landline, the other end can't hear them. It's like the person is speaking 5 feet away and can barely hear their voice. However between internal SIP calls, it's fine. What could be the problem?
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