[Asterisk-Users] help with linejack card

[Gregg Lebovitz]

Switching to slinear doesn't make a difference when recording from the
phone. It does, however, make the playback to the phone a bit choppy.

I don't think this is a format problem, but thanks for your help. If I
get the dial out to a PSTN working I will let you know.

Gregg

On Fri, 2003-03-07 at 11:38, David T Hollis wrote:
> Gregg Lebovitz wrote:
> 
> >Hi,
> >
> >I am trying to get a prototype working based on Asterisk and Quicknet
> >cards. I currently have to systems set up each with a LineJack card. I
> >have the systems working, but can't get the voicemail demo to work
> >properly. Messages to the user telephone set from the voicemail system
> >are clear, but recordings left through the phone are distorted. Sounds
> >like the audio has lots of echo and sampling error type distortion.
> >
> >I know this must be covered in the archives, but I can't find a
> >reference.
> >
> >I am using the Asterisk demo configurations. configuration is as
> >follows:
> >
> >;
> >; Linux Telephony Interface
> >;
> >; Configuration file
> >;
> >[interfaces]
> >
> >;mode=immediate
> >;mode=fxo
> >mode=dialtone
> >
> >;format=g723.1
> >;format=slinear
> >format=ulaw
> >
> >silencesupression=no
> >;
> >; List all devices we can use.  Contexts may also be specified
> >;
> >context=local
> >context=default
> >
> >;
> >txgain=100%
> >rxgain=100%
> >device => /dev/phone0
> >
> >
> >_______________________________________________
> >Asterisk-Users mailing list
> >Asterisk-Users at lists.digium.com
> >http://lists.digium.com/mailman/listinfo/asterisk-users
> >  
> >
> Try using the slinear format.  In reading the comment that slinear would 
> sometimes cause crashes, I changed to use the gsm codec.  When I tried 
> to use the system, I would always get a error on playing back messages 
> because a recording in that format was not found.  Changing it back to 
> slinear made it work great.
> 
> BTW, if you can get the LineJack to dial outbound on the PSTN, let me 
> know.  Haven't managed to get that to work just yet.
> 
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