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. In fact the problem came when I needed G729, not supported and not available by Digium for trunk and 1.6 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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