similar to: Echo cancellation again ...

When I want to pick up a ringing line, I dial *8 and hit New Call softkey on my Poly 501. For some reason, if I pick up the hand set and dial *8, it seems to ignore or drop the 8 digit. I've confirmed that this happens with all of my 12 Polycom 501s. Does anyone know what would cause this or how to fix it? Craig Bruenderman Network Advocates, Inc. 300 Envoy Circle Suite 300 Louisville, KY

I am looking into the possibility of buying a Cisco 7960 with a 7914 expansion module. I know a lot of people are using the 7960, but I haven't read much about the 7914 and I was wondering if anybody has used this module with Asterisk? -- Thank you for your time __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com

My carrier tells me our Adtran is seeing error seconds and timing slips. Is there any way to check this on the T100P, maybe in /proc? Craig Bruenderman Network Advocates, Inc. 300 Envoy Circle Suite 300 Louisville, KY 40299 Main: 502-412-1050 DID: 502-992-5929 Fax: 502-412-1058 Mobile: 502-548-1100

Are there any known issues with Cisco 7960s and any particular TFTP daemons? I cannot seem to get mine to speak to a Linux box, but Solarwinds under Windows works like a charm. Craig Bruenderman Network Advocates, Inc. 300 Envoy Circle Suite 300 Louisville, KY 40299 Main: 502-412-1050 DID: 502-992-5929 Fax: 502-412-1058 Mobile: 502-548-1100

Hi, i am from Germany, so excuse my School English. I use Asteriks 1.2.12.1, zaptel 1.2.9 and mISDN Rc25 - since my update of Asterisk 2 wooks ago, Echos accure in my SIP Calls. I use SNOM 360, sometimes there is no echo (for example if i call myself via SIP->Asterisk->SIPProvider->TELEKOM->ISDN) but if i call other people there occures Echo many times. The Routing is always the

Does anyone have a recommendation for a good SIP phone with a busy lamp field? I need my operator to be able to see extension status for about 20 extensions and transfer via HOLD + extension button. I've got a pair of SNOM 360s with the sidecar, but I'm very disappointed with them. The buttons are cheap and rubbery like a Sipura 841, the handset cord is short and cheap, the audio quality

I'm attempting to set up my SoundPoint 501 with my Asterisk server. I've configured DHCP and TFTP and successfully updated both the BootRom and SIP application. I've also created a custom cfg file for this phone's MAC address and the settings seem to be taking just fine. I can see that the phone registers with my Asterisk server but 'sip show peers' reports that the phone

Has anyone has issues with echo using a Wildcard with a PRI from a major Canadian Telco? (Bell, Telus, AllStream, Sprint, Group Telecom). We are using a T1 from GT that is giving use annoying echos whenever a SIP/IAX2 client calls a local analog line. Calling cells phones is no issue since its digital. Regardless, there should be no issue with echo on a PRI at all. NOC at GT is telling us

Hi, How would one activate/deactivate hardware echo cancellation on the TE406 card? Can it be done per channel? I'm going to run TE406 in the following scenario: ISDN -> TE406 -> PABX I understand from Steve Underwood's site that echo cancellation is not good for faxes (and they do that themselves). So what I want to do and bypass echo cancellation for selected extensions before

Hi,

On Tue, 11 Oct 2005 10:36:51 +0200, Jean-Marc Valin <Jean-Marc.Valin@USherbrooke.ca> wrote: > Source code at: > http://people.xiph.org/~jm/speexclient/ I rewritten my program so it is more similar to yours, I grabbed your code for storing and retrieving echo, and I have better results, I think the echo is cancelled in about 50% but it still can be heared. I think there is a

Hi all, 1. Just bought a new TE411P and about to install it replacing the existing TE410P. I am assuming I need to set echocancel=no and echocancelwhenbridged=no now that it will be done in hardware, correct? 2. Is there any way to monitor hardware echo cancellation to ensure it is working (apart from being on a call)? 3. The Digium webite says "By supporting 16ms with 128 channels or

> Message: 1 > Date: Thu, 15 Jul 2010 00:19:43 -0600 > From: devi at purpletalk.com > Subject: [Speex-dev] Speex Echo Cancellation > To: speex-dev at xiph.org > Message-ID: <20100715001943.pr04hvtxsc8k04so at mail.purpletalk.com> > Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; > format="flowed" > > Hi > > I am using speex

Hello all, I use speex as codec [narrowband and wideband], echo canceller and preprocessor. I was able to use it in all case except in echo cancellation. I found that in my application, echo cancellation works only if echo tail [echo filter length] is arround 2000 ms or more. But recomended value in the documentation is 100 ms. With 2000 ms echo tail echo cancellation works fine but it takes

In what scenarios non-Echo Cancellation cards (T1/E1/FXO) should be used ? Don't all good and professional installations need echo cancellation cards? Are there people out there with non-Echo Cancellation cards for T1 or 8 FXO ports and who really don't have any echo issues and they are running serious businesses? -- Zeeshan A Zakaria -------------- next part -------------- An HTML

Dear, I have Asterisk 1.6 with an E1 Digium card with echo cancellation module. So I need to use just the echo cancellation by hardware and disable the echo cancellation by software. I use DAHDI for my telephony hardware. If the lines involved with echo cancel are: In /etc/dahdi/system.conf: echocanceller=mg2,1-15,17-31 In /etc/asterisk/chan_dahdi.conf: echocancel=yes echocancelwhenbridged=no

Shortly, I'll be purchasing a Sangoma A102. I'm wondering if I should spring for the hardware echo cancellation circuit or not. Upon initial implementation, the 2 T1 Ports will be used as a passthrough as we slowly transition off of a legacy PBX. Eventually, we'll only be using one of the ports, and will be providing VoIP service to a bunch of SIP deskphones. So - with that usage

Hello all, Today I tried speex echo cancellation on my VoIP application running on a windows mobile based PDA (OMAP1510 168MHz). The result is disappointing: it takes 150-250 ms to do echo cancellation (by calling speex_echo_capture() ) for a 20 ms frame! I've defined the FIXED_POINT macro. Is there anyway to do some optimization? Nick

Hi, all. I'm a programmer lived in Korea. This time, I was investingating echo cancellation and found speex echo cancellation related API. But echo stilll remains. 1. echo cancellation using only files works propertly. 2. echo cancellation using sound device works not propertly. You can download test files as followed. http://www.vdream.co.kr/temp/ec/echocancel.wmv ( testing screen capture

Hi! For reasons that I won't bore people with, I'd like to disable echo cancellation on-the-fly, depending on which DID a call came in on. I've seen things like spandsp disable EC for faxes, so I know it's possible. Any idea where to start looking? (I assume I'll have to make a helper application of some sort to be called externally, and that's fine.) Thanks! -Ken