olivier taylor wrote: > what do you mean by a better software echo canceller? > I use the standard one in dahdi, wich is better? > Oslec doesn't seems available for dahdi. OSLEC was what I was thinking of... although whether or not there is a patch for DAHDI to use OSLEC I do not know. > In fact the problem came when I needed G729, not supported and not > available by Digium for trunk and 1.6 1.6.0 will be released soon, so you definitely will have one then. I'm not sure whether or not they have a 1.6 pre-release of the g.729 binary. I'll look into this. Matthew Fredrickson Digium, Inc. > I tried to install the last version of asterisk, libss7, and dahdi. > Since, I have echo problem I didn't had before. > > > Olivier > > Matthew Fredrickson a ?crit : >> olivier taylor wrote: >>> echocancel is set, the exact message is : >> >> Ok, this means that you either need to try to use a different/better >> software echo canceller or you need to get a hardware echo canceller >> that will perform better. Thanks for checking that, we just had a >> problem a while ago where the echo canceller wasn't being turned when >> calls came in (in a particular scenario) and I wanted to make sure >> that that wasn't happening again. >> >> Matthew Fredrickson >> Digium, Inc. >> >>> >>> uu212-190-xx-xxx*CLI> dahdi show channel 2 >>> Channel: 267-183*CLI> >>> File Descriptor: 22 >>> Span: 1 >>> Extension: 7-183*CLI> >>> Dialing: no >>> Context: default >>> Caller ID: >>> Calling TON: 0 >>> Caller ID name: >>> Mailbox: none >>> Destroy: 0 >>> InAlarm: 0 >>> Signalling Type: SS7 >>> Radio: 00-67-183*CLI> >>> Owner: DAHDI/2-1 >>> Real: DAHDI/2-1 (Linear) >>> Callwait: <None> >>> Threeway: <None> >>> Confno: -1 >>> Propagated Conference: -1 >>> Real in conference: 0 >>> DSP: yes >>> Busy Detection: no >>> TDD: no >>> Relax DTMF: no >>> Dialing/CallwaitCAS: 0/0 >>> Default law: alaw >>> Fax Handled: no >>> Pulse phone: no >>> DND: no >>> Echo Cancellation: >>> 128 taps >>> currently ON >>> CIC: 2 >>> Actual Confinfo: Num/0, Mode/0x0000 >>> Actual Confmute: No >>> Hookstate (FXS only): Onhook >>> >>> >>> Matthew Fredrickson a ?crit : >>>> olivier taylor wrote: >>>>> >>>>> >>>>> Matthew Fredrickson a ?crit :Well, I am quite happy with libss7, no >>>>> real reasons to change for me. >>>>> But, I can't be sure and this is another problem, since I use >>>>> chan_dadhi, I have big echo problems, it wans't the case with zaptel. >>>>> I am buying E1 cards with hardware echo canceller to avoid this >>>>> problem because I didn't find any solution with Dahdi. >>>>> Tuning by rxgain/txgain makes the echo a bit better, but an echo >>>>> still remain. >>>> >>>> I think I might have mentioned this in another email, so please >>>> forgive me if I did, but when you have a call up with echo on it, >>>> can you check `dahdi show channel x` where is is the DAHDI channel >>>> that you are connected to and tell me if the echocancel: option is >>>> set to something besides no? >>>> >>>> Thanks, >>>> Matthew Fredrickson >>>> Digium, Inc. >>>> >>>>> >>>>> Dunno if I am the only to have that problem. >>>>> >>>>> Kind regards, >>>>> >>>>> Olivier >>>>>> Krzysztof Drewicz wrote: >>>>>> >>>>>>> Oakland, Alan napisa?(a): >>>>>>> >>>>>>>> To further clarify, libss7 is developed by Digium, where >>>>>>>> chan_ss7 is >>>>>>>> developed by a company called Dicea, more information on >>>>>>>> chan_ss7 can be >>>>>>>> found on it's voip-info page >>>>>>>> http://www.voip-info.org/wiki/view/Asterisk+ss7+channels >>>>>>>> >>>>>>> Also: >>>>>>> >>>>>>> chan_ss7 by Dicea has a cluster/failover capability where you >>>>>>> have one SPC for you asterisk (one point code in SS7, just like >>>>>>> one IP), and if used with 2 hosts, each one having at least one >>>>>>> E1 to your SS7 peer , then (if your peer understands changeover >>>>>>> and emergency changeover messages it's 99.99%) one of your >>>>>>> asterisk machines could do a reboot, and a second one will go on. >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> libss7 has (am i correct) no official support, in other words: >>>>>>> you cannot expect Digium Support (even with Asterisk Premium >>>>>>> Edition) to solve your problems with libss7, they will help, but >>>>>>> the response time etc... for ss7 is not in the contract. >>>>>>> >>>>>> >>>>>> Regarding the current "official" support channel for libss7, this >>>>>> is certainly no worse off than the lack of an official support >>>>>> channel for chan_ss7. And with libss7 you get the benefit that >>>>>> the original author (myself) is still actively maintaining and >>>>>> supporting it, as well as working with many of you in the >>>>>> community with any problems you run into. >>>>>> >>>>>> There are still some policies and decisions we have to make about >>>>>> how we're going to officially support libss7 though. I believe >>>>>> that when we make the official release of Asterisk-1.6.0 (Open >>>>>> source) installation support will be something you can call >>>>>> support about (although it'll probably end up coming back to me >>>>>> for a while, while the technical support staff are learning how to >>>>>> support it). >>>>>> >>>>>> With regards to BE, I was asked a while ago about including libss7 >>>>>> support in it. At the time (this was probably a year or year and >>>>>> half ago), I thought it wouldn't be a good idea, due to maturity >>>>>> issues. Now though, I feel that libss7 is to the point where I >>>>>> would feel good about putting it in BE since, IMHO, it has been >>>>>> proven as far as stability and performance goes. >>>>>> >>>>>> If there is enough interest in getting support for libss7 (i.e. >>>>>> people would be willing to buy copies of it to use with libss7) I >>>>>> can look into what it would take to get it in. >>>>>> >>>>>> -- >>>>>> Matthew Fredrickson >>>>>> Digium, Inc. >>>>>> >>>>>> _______________________________________________ >>>>>> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >>>>>> >>>>>> asterisk-ss7 mailing list >>>>>> To UNSUBSCRIBE or update options visit: >>>>>> http://lists.digium.com/mailman/listinfo/asterisk-ss7 >>>>>> >>>>>> >>>>> >>>>> ------------------------------------------------------------------------ >>>>> >>>>> >>>>> _______________________________________________ >>>>> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >>>>> >>>>> asterisk-ss7 mailing list >>>>> To UNSUBSCRIBE or update options visit: >>>>> http://lists.digium.com/mailman/listinfo/asterisk-ss7 >>>> >>>> >>> >> >> >
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