Hi, sounds for me like when i use an headset and the microfone handle scratches on my beard while i talk ;)
maybe you have a network cable whitout screening. I had bad problems on different phones which sounds like that you have cause of electric or magnetic inteferences but when i changed the network cable everything was fine again. do you have made an echo test lie exten => 999,1,Echo() to hear yourself and try to find this issue. best regards steve smith Vieri schrieb: > Hi, > > I'm experiencing a few (but meaningful) cases of audio distortion (or bad > quality). I can't say yet how often this happens. > > Please listen to the following sound file: > > http://213.96.91.201/temp/distorted_audio_1.wav > > This was recorded by Asterisk while the local SIP caller was dialing out a > SIP trunk (so the problem is on my side, definitely, and it doesn't seem to > be related to the bandwidth between my peer and the SIP provider). You can > hear a scratchy sound during the whole fragment. > > I can't determine the possible cause of this kind of distortion. Maybe an > expert ear can give me a clue. It shouldn't be the Asterisk server's CPU > usage. Could it be a network issue between the Asterisk system and the SIP > client? (it happens with SIP hardphones as well as softphones so I guess it's > improbable it's the client software/firmware) Both softphones and hardphones > use GSM and usually work fine (this kind of issue is not too frequent). The > LAN isn't dedicated to voice but has QoS prioritizing VoIP. > > Could the cause of the distortion be network-related? And only on "my" side? > Should I consider other causes? > > Thanks, > > Vieri > > > > > > -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
