----- "DHAVAL INDRODIYA" <dhaval.it01...@gmail.com> escreveu:
> Hi, > > Carlos > > I checked dmesg on my server and i found following message > > what is meaning for this ? i cant understand > > VPM400: Not Present > VPM450: echo cancellation for 128 channels > VPM450: hardware DTMF disabled. > VPM450: Present and operational servicing 4 span(s) > > regards > Dhaval That means you have a VPM450 echo cancelling module attached to your digital board. All you need to do in order to activate echo cancelling is setting echocancel=yes on your chan_dahdi.conf. After that you can check if the echo canceller is really enabled by triggering a "dahdi show channel X" on the Asterisk CLI. X should be a channel that's currently on a call. Here's an example: stara*CLI> dahdi show channel 64 Channel: 64 File Descriptor: 77 Span: 3LI> Extension: Dialing: no Context: pabx Caller ID: Calling TON: 0 Caller ID name: Destroy: 0 InAlarm: 0 Signalling Type: ISDN PRI Radio: 0I> Owner: DAHDI/64-1 Real: DAHDI/64-1 Callwait: <None> Threeway: <None> Confno: -1 Propagated Conference: -1 Real in conference: 0 DSP: yes Relax DTMF: no Dialing/CallwaitCAS: 0/0 Default law: alaw Fax Handled: no Pulse phone: no Echo Cancellation: 128 taps unless TDM bridged, currently ON PRI Flags: Call PRI Logical Span: Implicit Actual Confinfo: Num/0, Mode/0x0000 Actual Confmute: No Hookstate (FXS only): Onhook Of course, the interesting line to you is the "Echo Cancellation" one. -- _____________________________________________________________________ -- 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
