I'm a complete Asterisk novice and have an installation based on the Asterisk@HomeCD. I've installed my TDM400P with 2 x FXO & 2 x FXS, but every time I try to dial out, I get a message "No circuits available". Can someone confirm the pinouts for connecting the FXO's to a UK BT Line - I have RJ11 connectors on the back of my TDM400P card, so ideally I'd like to know the pin mappings from a standard BT plug to RJ11. Cheers Graham -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050824/c5432e8f/attachment.htm
The jacks on the TDM are ( incorrectly ) referred to as RJ45, correctly they are 8 position modular. The line, either in or out is on the two CENTER pins. NONE of the other 6 pins are used. Though I am not in the UK, from what I know you don't use the two center pins for a single line connection, so you will need to fashion some sort of adapter to connect. Frankly, using the two center pins ( A Bell System brain blizzard) wasn't the smartest idea. It makes the modular plug into, with the addition of just a little moisture, a really good spark gap when a ring signal or small induction of lightning is applied. I have seen many a modular plug turned black and useless since the introduction of modular in the US in the early 70's Good luck John Novack Graham Kiff wrote:> I'm a complete Asterisk novice and have an installation based on the > Asterisk@Home <mailto:Asterisk@Home>CD. > > I've installed my TDM400P with 2 x FXO & 2 x FXS, but every time I try > to dial out, I get a message "No circuits available". > > Can someone confirm the pinouts for connecting the FXO's to a UK BT > Line - I have RJ11 connectors on the back of my TDM400P card, so > ideally I'd like to know the pin mappings from a standard BT plug to RJ11. > > Cheers > Graham > >------------------------------------------------------------------------ > >_______________________________________________ >Asterisk-Users mailing list >Asterisk-Users@lists.digium.com >http://lists.digium.com/mailman/listinfo/asterisk-users >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
Chris Earle (CBL)
2006-Jan-20 09:44 UTC
[Asterisk-Users] Connection TDM400P to UK PSTN (Gains and Impedance)
re: setting zaptel to UK mode Yes, I've set the tonezone, and also when loading the module have set it to OPERMODE=UK Looks like that is working A few ideas: *Maybe* the opermode code in the zaptel drivers isn't actually working ? Meaning, maybe it's saying it's in UK mode but actually isn't? Is there any way to know really? Another question: Is it possible to run the CVS-HEAD/Stable version of Zaptel (1.2 whatever) with an older version of Asterisk? I'm running 1.09, but I was wondering if I could get at the newer echo cancellers like KB1 and MG2 without upgrading to Asterisk 1.2? Thanks for your suggestions everyone Chris ----- Original Message ----- From: "Tzafrir Cohen" <tzafrir@cohens.org.il> To: "Chris Earle (CBL)" <cearle@cbltech.ca> Sent: Thursday, January 19, 2006 1:02 PM Subject: Re: [Asterisk-Users] Re: Connection TDM400P to UK PSTN> On Thu, Jan 19, 2006 at 11:30:25AM -0500, Chris Earle (CBL) wrote: > > Okay, sorry to hash out this discussion again, but it's starting todrive me> > crazy > > > > Successfully got the adapters to allow the BT phones to ring on linescoming> > out of a TDM.......... but now my latest problem is echo. > > > > I have done tweaking of the gains in North and South America, and aftera> > bit of work have gotten echo to go away, but this seems to just not wantto> > go away. > > > > On an incoming call from the POTS, everything on my end sounds perfect, > > but on the internal extension phone, there is an echo when you speak.An> > almost perfect copy of what you say. If I turn down the gains on that > > channel, it doesn't seem to do much, or causes other volume issues. > > > > Help! > > > > In my research and hunting, I am starting to worry that the US-boughtdigium> > cards have IMPEDENCE issues in the UK with the BT Lines etc? That would > > seem to explain why the echo is so incessant. I have even triedchanging> > Echo Cancellers to MARK3. > > > > Right, this is Asterisk 1.0.9, Zaptel 1.0.9.2 on Debian > > > > Suggestions / Experiences in UK appreciated > > Not sure, but if the card is recent, then its impedence values and such > should be configurable. > > For starters, set the tonoezone (both of them) to "uk" in zaptel.conf > and re-run ztcfg . > > Try to see what exactly is the model of your card and your firmware. I'm > not sure how to check this. Maybe ask Digium support. > > -- > Tzafrir Cohen | tzafrir@jbr.cohens.org.il | VIM is-- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.