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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 04/07/13 21:59, Rob Beard wrote: > On 04/07/13 21:39, Gordon Henderson wrote: > >>>> I've tried adjusting the txgain in chan_dahdi.conf and it >>>> doesn't seem to make much if any difference (I've also >>>> restarted dahdi and Asterisk after making the changes). It's >>>> currently set at txgain = 22.0 (I wasn't sure how high to put >>>> it to). >>> >>> You could try a Zycoo ZX20-A202. Which is an ARM based >>> Asterisk box with two FXO ports built in. (Around £140). >> >> They all use the same modules - or the same reference design for >> the analog side of things. The issue here is that the incoming >> line is long, so the voice volume is low - the hardware can >> amplify it a bit, but not by much. >> > > I seem to remember back in the days if dialup that you could call > BT and they would increase the gain on the line, I wonder if this > could be worth a try? Can't hurt. Do it from a basic phone plugged directly into the "test socket". Might get their attention more if you were quiet to them than if they were quiet to you though ;) Also remember to tell them "It's fine on 01803 DEFGHI". (Check if both lines are from the same cabinet.) You could also, for comparison, try ringing 17070 then option 2 with the same phone plugged into the test socket on both lines. If you can hear some noise on the troublesome line when it should be quiet that would also be something to get in touch with BT about. If it turns out that the lines come from different cabinets and one has always been much quieter than the other then BT are likely to just say "tough". Don't tell them you have a PBX connected to the lines. Also what happens if you try to use a fax on the line in question? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEARECAAYFAlHV9yEACgkQsoRLMhsZpFdo2QCdGcrogmhWhD1Spf06M28gvCmy WzYAnjfAZlHSaQnhi576BPo6M/m+vtS+ =9lam -----END PGP SIGNATURE----- -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq