Joseph wrote: > On 03/04/09 15:44, Marco Signorini wrote: > >> Hi Joseph. >> I've spent some time tuning the SPA3102 FXS line input and output gain >> and I think that this is an important variable. >> Let's try to record incoming and outgoing fax tones with asterisk on SIP >> channel (disabling the fax detection on SPA and sending fax inband) and >> look at the recorded file with a wave editor (Audacity). >> I had better results if the maximum level is near half to the full >> dynamic. Then switch to T38, if you need it. >> > > As I remember I have experimented with gain on PSTN line as well but have > reset back to default. > I have: > SPA To PSTN Gain:0 > PSTN To SPA Gain:0 > > I think "0" is the default. > > Yes, "0" is the default. Is the fax machine connected to the FXS port or do you use the SPA3102 only as a SIP 2 PSTN gateway? If you use the FXS port, please take a look at the gain parameters you can find in the "Miscellaneous" section in the "Regional" page (log in as Administrator then switch to the "advanced" report).
Now I've -5 as input gain and -2 as output. I don't know if this could helps you. Best regards, Marco Signorini ======================= INGEGNI Tech S.r.l. http://www.ingegnitech.com _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
