Hi all, Does Thomson 2030 hardphone has the feature of supporting more than one user registered at the same time? I heard not... But I think that's weird because it has 4 profiles... Thanks, Ricardo.
Gordon Henderson
2006-Sep-14 04:54 UTC
[asterisk-users] Very Loud (+Echo/Reverb) issue with TDM400P+fax detection (UK)
Interesting problem - small server with a TDM400P card, one FXO and one FXS module. The dialplan (amongst other things) routes an incoming call from the PSTN no the FXO port to to the FXS port, and a number of SIP phones. There is a fairly standard DECT phone with handsets round the office connected to the FXS port, and all was going well until I added fax detection. Do get it to work, I needed to up the rxgain on the incoming line to 7, but this seems to have caused a weird effect on the internal DECT phone - it's now very loud and it's the volume that (I suspect) is causing a local echo (it's more like reverb) issue. The far-end doesn't seem to hear it, and it happens for both incoming and outgoing calls (made from the internal analog/DECT phone) Whats really odd is that if the incoming call is picked up on a SIP phone then you don't seem to get this loudness/echo/reverb issue. Am I missing some magic config in the zaptel.conf file, or any other clues to make it work? I can "fix" it by tunning off fax detection and commenting out the rxgain line, but fax detection is a desired feature in this case... (and it's working very well too - fax to email, woo hoo!) I've tried this on 2 different systems with different makes of dect phone (and 'real' analogue phones) and it's the same, so I'm sure it's not a hardware fault thats the problem... Asterisk 1.2.10, zaptel-1.2.7, Linux 2.6.17.x, Debian Sarge base and based in the UK if that's any additional help... zapata.conf below: [channels] usecallerid=yes cidsignalling=v23 ; Added for UK CLI detection cidstart=polarity ; Added for UK CLI detection hidecallerid=no callwaiting=no threewaycalling=yes transfer=yes echocancel=yes echotraining=yes immediate=no ;faxdetect=incoming context=internal signalling=fxo_ks sendcalleridafter=2 ; the hidden option given by Slav from Digium mailbox=100 callerid=100 channel => 4 context=incoming signalling=fxs_ks ;rxgain=7.0 ; Need this for incoming FAXes immediate=no ; will take the line on the first ring callerid=asreceived ; propagate the CID received from BT channel => 1 Thanks, Gordon