Re: [asterisk-users] Questions on X100P/X101P cards
On Thu, May 07, 2009 at 07:24:21AM +0200, Massimo Nuvoli wrote: John Novack ha scritto: Not sure how you would do that, as the X100 card is an FXO card, won't provide either battery or dial tone to the cordless. What you will want for that is an FXS card or ATA. The X100 card will connect to a central office line, and with the later software echo cancel works OK. Not nearly as bad as some have made it out to be, though for US/Canada lines. Not suitable for UK and others The problem is: analog line is a delicated environment where impedance, volts, and line quality are some of the critical components. I found my X100 cards failing in production, no software component can solve the line impedance or other physical things. I try but no way out. Some X100P cards (e.g.: those that are based on SI3034, but not those basedon SI3035) support programmable impedance settings. Sadly the wcfxo driver does not support it. Fixing it should mostly be a matter of lifting some code from wctdm.c and adapting it. Shouldn't be much of an issue. Anybody wants to try that? (The cards I have at home are SI3035, sadly) A more interesting task would be to add support for some newer (soft/win-) modems. Anybody wants to try that? The wcfxo driver needs some love and care. Don't expect Digium to do that for you. They have more important stuff to do. Go and write your own device drivers. -- Tzafrir Cohen icq#16849755 jabber:tzafrir.co...@xorcom.com +972-50-7952406 mailto:tzafrir.co...@xorcom.com http://www.xorcom.com iax:gu...@local.xorcom.com/tzafrir ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Thu, 7 May 2009 09:32:19 +0300, Tzafrir Cohen tzafrir.co...@xorcom.com wrote: Some X100P cards (e.g.: those that are based on SI3034, but not those basedon SI3035) support programmable impedance settings. Sadly the wcfxo driver does not support it. Fixing it should mostly be a matter of lifting some code from wctdm.c and adapting it. Shouldn't be much of an issue. Anybody wants to try that? (The cards I have at home are SI3035, sadly) A more interesting task would be to add support for some newer (soft/win-) modems. Anybody wants to try that? The wcfxo driver needs some love and care. Don't expect Digium to do that for you. They have more important stuff to do. Go and write your own device drivers. Thanks guys. So, provided the card has the right DAA chips to match the country in which it is used (FCC or CTR21), all it takes to use this hardware to handle a POTS line is patching Zaptel? IOW, the hardware itself is good enough for SOHO use? According to the following document, NovaVox (which no longer sells X100P cards) provides a Zaptel patch for cards sold by X100P.com to support non-FCC countries and UK CID: This document describes how to configure an Open Source IP PBX with an X100P Special Edition (SE) FXO PCI card installed to support Caller ID received from a UK BT PSTN line. The configuration requires implementing a patch for Asterisk®/Zaptel that was originally written for the UK but has also been known to work in other countries.[...] The Zaptel wcfxo driver has two user configurable modes of operation, FCC to support US line standards and CTR21 to support European line standards. The Silicon labs Si3012/Si3035 DAA chip used in the original Digium X100P card and low cost X100P clone cards only supports FCC mode. However, the Si3014/Si3034 DAA chip used on the X100P SE supports global line standards. X100P SE Setup Guide - Global Line Standards http://novavox.co.uk/support/x100p.html Richard Spencer supp...@novavox.co.uk ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Thu, May 07, 2009 at 11:47:03AM +0200, Vincent wrote: On Thu, 7 May 2009 09:32:19 +0300, Tzafrir Cohen tzafrir.co...@xorcom.com wrote: Some X100P cards (e.g.: those that are based on SI3034, but not those basedon SI3035) support programmable impedance settings. Sadly the wcfxo driver does not support it. Fixing it should mostly be a matter of lifting some code from wctdm.c and adapting it. Shouldn't be much of an issue. Anybody wants to try that? (The cards I have at home are SI3035, sadly) A more interesting task would be to add support for some newer (soft/win-) modems. Anybody wants to try that? The wcfxo driver needs some love and care. Don't expect Digium to do that for you. They have more important stuff to do. Go and write your own device drivers. Thanks guys. So, provided the card has the right DAA chips to match the country in which it is used (FCC or CTR21), all it takes to use this hardware to handle a POTS line is patching Zaptel? IOW, the hardware itself is good enough for SOHO use? The problem with X100P and UK calelr ID is, if I understand it correctly, that the card does not detect polarity reversal. But doesn't it provide you with the raw amperage and voltage of the line? This should allow detecting polarity reversal. And once that is done, the driver can send up a polarity reversal event, and no change in Asterisk is required. This is all within wcfxo.c and thus has no effect on the performance of other DAHDI devices. It sounds so simple that there must have been a good reason why something more complicated has been required. According to the following document, NovaVox (which no longer sells X100P cards) provides a Zaptel patch for cards sold by X100P.com to support non-FCC countries and UK CID: Quoting later on: | The DAA chip used in the X100P SE card is a Si3014/Si3034, which does | support polarity reversal detection. However, because the X100P card | Zaptel driver does not include any polarity reversal detection code, | the X100P SE polarity detection feature cannot be used. An alternative | is to use a patch that uses a history buffer to store the CID value | written by Tony Hoyle. By the time the first ring arrives, the buffer | has a history of what was received immediately before so the CID | information can be extracted. So, anybody wants to work on the code of wcfxo to add polarity detection? CPU is cheap (certainly so when referring to wcfxo, which will only driver very few channels on a system), but this is still no excuse to waste it. Alternatively, some code to manually detect polarity reversal by sampling amperage and voltage of the card may also help. This document describes how to configure an Open Source IP PBX with an X100P Special Edition (SE) FXO PCI card installed to support Caller ID received from a UK BT PSTN line. The configuration requires implementing a patch for Asterisk®/Zaptel that was originally written for the UK but has also been known to work in other countries.[...] The Zaptel wcfxo driver has two user configurable modes of operation, FCC to support US line standards and CTR21 to support European line standards. The Silicon labs Si3012/Si3035 DAA chip used in the original Digium X100P card and low cost X100P clone cards only supports FCC mode. However, the Si3014/Si3034 DAA chip used on the X100P SE supports global line standards. This is the first thing I mentioned. Should be a relatively trivial change in the driver. -- Tzafrir Cohen icq#16849755 jabber:tzafrir.co...@xorcom.com +972-50-7952406 mailto:tzafrir.co...@xorcom.com http://www.xorcom.com iax:gu...@local.xorcom.com/tzafrir ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Thu, May 07, 2009 at 11:47:03AM +0200, Vincent wrote: X100P SE Setup Guide - Global Line Standards http://novavox.co.uk/support/x100p.html Richard Spencer supp...@novavox.co.uk Another thing: their global-line-standard should basically (if properly written) resolve http://bugs.digium.com/view.php?id=11057 . Though I guess the new code will actually be in DAHDI, as Zaptel is frozen. The driver already checks at init time the chip type and thus it is easy to give different initialization / behaviour for si3034 and si3035. -- Tzafrir Cohen icq#16849755 jabber:tzafrir.co...@xorcom.com +972-50-7952406 mailto:tzafrir.co...@xorcom.com http://www.xorcom.com iax:gu...@local.xorcom.com/tzafrir ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Wed, May 6, 2009 at 10:53 PM, John Novack jnov...@stromberg-carlson.org wrote: Not sure how you would do that, as the X100 card is an FXO card, won't provide either battery or dial tone to the cordless. What you will want for that is an FXS card or ATA. The X100 card will connect to a central office line, and with the later software echo cancel works OK. Not nearly as bad as some have made it out to be, though for US/Canada lines. Not suitable for UK and others Ah, yes. Thanks for correcting me on that, I was getting some things mixed up in my head. -jonathan ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
Jonathan Moore wrote: On Wed, May 6, 2009 at 10:53 PM, John Novack jnov...@stromberg-carlson.org wrote: Not sure how you would do that, as the X100 card is an FXO card, won't provide either battery or dial tone to the cordless. What you will want for that is an FXS card or ATA. The X100 card will connect to a central office line, and with the later software echo cancel works OK. Not nearly as bad as some have made it out to be, though for US/Canada lines. Not suitable for UK and others yeah I agree with the above - I never really found echo to ever be a problem, my only complaint was on some less than stellar cpu's I was having dtmf recognition problems. Ah, yes. Thanks for correcting me on that, I was getting some things mixed up in my head. -jonathan ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Thu, 07 May 2009 10:16:55 -0400, Jon Pounder j...@inline.net wrote: yeah I agree with the above - I never really found echo to ever be a problem, my only complaint was on some less than stellar cpu's I was having dtmf recognition problems. BTW, can someone explain to a libart major like me (;-)) where echo comes on in a telephone conversation? I seem to recall it's due to the length of the line between the CO and the local party, but I'm not sure. Is there a way to keep track of this issue, and overtime, to configure it to answer a call by expecting such and such echo, and thus, avoid starting sampling from scratch every time? Thank you. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Thu, 7 May 2009 13:40:20 +0300, Tzafrir Cohen tzafrir.co...@xorcom.com wrote: Another thing: their global-line-standard should basically (if properly written) resolve http://bugs.digium.com/view.php?id=11057 . Though I guess the new code will actually be in DAHDI, as Zaptel is frozen. Ah yes, I seem to remember Zaptel had to change their name to DAHDI for some reason. Is there a mailing list to ask for more information about Zaptel/DAHDI? http://lists.digium.com/mailman/listinfo/ ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
BTW, can someone explain to a libart major like me (;-)) where echo comes on in a telephone conversation? I seem to recall it's due to the length of the line between the CO and the local party, but I'm not sure. Yes, I'll tackle that. It takes a finite amount of time for the electrical signal originating in one phone to arrive at another phone over whatever path it is taking. If the path is copper, that time can be fairly small. If the path is satellite, the time will have to exceed the 1/4 second round trip to the bird. If there are SIP packets involved, the time must be larger than twice the packet size because of the time taken to collect the data in the packet and then to serialize it at the other and after it arrives. If the path involves the internet, there is the path delay there to be added in (ping will give you an idea of what that is, but it can often be 50 - 200 ms). All of this constitutes a delay. It can be a bit annoying in its own right because one person asks a question, and twice the delay time elapses before they start hearing the answer. However, if there are POTS analog circuits involved anywhere, a second factor comes into play. A POTS analog circuit is two wires, which carry an electrical representation of sound. Both sides of the conversation are carried over the same wire. (its called a 2 wire circuit. There are also four wire circuits where each direction travels on a separate pair of wires. They don't have echo problems. Digital circuits also have separate paths for each direction, so are immune to echo) The problem with a two wire circuit is how to separate the sound going in both directions. That is done by something called a 2 wire to 4 wire converter, also commonly known as a hybrid. It basically works by subtracting out what it knows is being sent at the near end from what it sees on the wire. If that subtraction is perfect, only what came from the other end is left and that is presented to the listener. In the real world, this isn't perfectly possible, but it can be done fairly well. However, there is a side effect that comes with the transition from two wire to four wire. Some of the signal originating at one end of the wire gets to the other end and is reflected back. For an analogy, tie the end of a long rope to a pipe, stretch it out and snap the other end. You will see a wave travel to the pipe and then come back. If you were able to attach the rope to the pipe with a suitable dashpot or something that would fully absorb the wave, nothing would come back. This reflection from the other end is the cause of echo. If the path is terminated in exactly the correct impedance, there would be no echo. However, for real circuits over the range of frequencies that make up sound, that impedance is a complex quantity, and cannot be exactly matched. The bottom line is that any circuit with one or more 2 wire analog portions is going to have some echo. Since most of the circuits provided by a phone company are POTS, they are two wire analog from the subscriber to the CO. If the subscriber equipment is Asterisk, then a 2 wire to 4 wire conversion and digitization takes place there. Likewise virtually all telco links are digital and a conversion takes place in the switch in the CO. Then at the other end the process is repeated. That makes a total of 4 interfaces where echo can originate in a typical phone call. If part of the call is SIP, or internet or satellite, the delay is large enough to guarantee it will be noticeable. Since there are several interfaces there can be several echoes. Another example that illustrates the concept is a speaker phone. If the person on the other end is using a speakerphone, then some of what you say comes out of the speakerphone, bounces off the walls of the room, gets picked up in the mic and comes back to you. Again, if the delay is very large, it will be an echo by the time it gets back to you. Speakerphones (if they are full duplex--i.e. allow both parties to talk at once) have to have echo cancellers to prevent this from happening. Is there a way to keep track of this issue, and overtime, to configure it to answer a call by expecting such and such echo, and thus, avoid starting sampling from scratch every time? Unfortunately not. If you've followed the discussion to this point, you understand that the magnitude (loudness) of the echo depends on the impedance mismatch which is unique to the circuitry at each end (for a typical call) of the call. The delay time is unique to the call path, which is likely different for each call, and in the case of internet calls, can vary within the call. The echo canceller must constantly do pattern matching to recognize changes and adjust for them. Its job is to subtracting out a signal of exactly the same amplitude as the echo, but of the opposite polarity and delayed by exactly the path delay the echo is travelling through. Since there can easily be four or more
[asterisk-users] Questions on X100P/X101P cards
Hello, I'm looking for a dirt cheap solution for SOHO use to handle at most a couple of POTS lines, and I notice that X10?P cards go for $15 on eBay as opposed to $90 for an OpenVox card or over $200 for a Sangoma. I have a couple of questions about those cheap FXO cards: 1. Are they all glorified softmodems, ie. none has an on-board CPU or DSP and outsources all processing to the computer's CPU? 2. Are they all bad, no matter what chipset is used (Intel, Motoral, Ambient)? If not, which offer good enough quality to handle a single POTS line? 3. Why are they often bad quality? Because the driver itself is badly written? Because PC's don't have enough speed to handle the tasks using their own CPU (hard to believe, but I don't know)? Thank you. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On 06/05/09 13:43, Vincent wrote: Hello, I'm looking for a dirt cheap solution for SOHO use to handle at most a couple of POTS lines, and I notice that X10?P cards go for $15 on eBay as opposed to $90 for an OpenVox card or over $200 for a Sangoma. I have a couple of questions about those cheap FXO cards: 1. Are they all glorified softmodems, ie. none has an on-board CPU or DSP and outsources all processing to the computer's CPU? 2. Are they all bad, no matter what chipset is used (Intel, Motoral, Ambient)? If not, which offer good enough quality to handle a single POTS line? 3. Why are they often bad quality? Because the driver itself is badly written? Because PC's don't have enough speed to handle the tasks using their own CPU (hard to believe, but I don't know)? Hi Vincent, I bought a cheap eBay X100p card over a year ago. When I first tried it was appalling. I couldn't get rid of the echo and noise no matter what. I then came across OSLEC (at the time a new Free Echo Canceller). A bit of hacking to get it to work and hey-presto! No more echo. I have been using the same card ever since with no noticeable issues. I think OSLEC is now the default EC for many distributions so I would have thought you will be fine although, of course, YMMV. For a cheap backup to your VOIP service they do the job. I wouldn't use them for a proper system though. HTH Al ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Wed, 06 May 2009 14:02:20 +0100, Alan Lord (News) alansli...@gmail.com wrote: For a cheap backup to your VOIP service they do the job. I wouldn't use them for a proper system though. Thanks for the feedback. I have two more questions: 1. Can the OSLEC echo canceller run OK on an 1.6GHz Intel Atom not doing much more than this and running Asterisk? 2. Is it good enough to handle a single FXO line for professional use? 3. Can you give me a pointer about which X100p you bought on eBay? AFAIK, there are three chipsets : Intel, Motorola, and Ambient. Using a $15 card over an $80 card is not insignificant because I could then sell a small server for $99. Thank you. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Wed, 6 May 2009, Vincent wrote: On Wed, 06 May 2009 14:02:20 +0100, Alan Lord (News) alansli...@gmail.com wrote: For a cheap backup to your VOIP service they do the job. I wouldn't use them for a proper system though. Thanks for the feedback. I have two more questions: 1. Can the OSLEC echo canceller run OK on an 1.6GHz Intel Atom not doing much more than this and running Asterisk? The OSLEC benchmark tell me it can run 14 concurrent instances on a 550MHz VIA C3 processor. On a 1.6GHz Atom, it tells me it can do 80 concurrent instances, so I think the overhead of OSLEC is the least of your problems there. 2. Is it good enough to handle a single FXO line for professional use? I use OSLEC in my standard PBX products - Not with x100p cards though, but with Digium and OpenVox cards. However I'm in the UK - your lines may be different... Gordon ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
I use these cards and they work pretty well. FWIW when Digium sold them they were also just winmodems with a resistor removed to change the PCI device ID. Later on the Zaptel driver included the device ID of the winmodem. I used to be able to get the winmodem itself for under $10, but I think they are discontinued now. Ambient = Intel, FWIW. If you want I'll dig out out and give you the details. If you need a large quantity I would try to find the winmodems that are compatible. On Wed, May 6, 2009 at 08:43, Vincent vincent.delpo...@bigfoot.com wrote: Hello, I'm looking for a dirt cheap solution for SOHO use to handle at most a couple of POTS lines, and I notice that X10?P cards go for $15 on eBay as opposed to $90 for an OpenVox card or over $200 for a Sangoma. I have a couple of questions about those cheap FXO cards: 1. Are they all glorified softmodems, ie. none has an on-board CPU or DSP and outsources all processing to the computer's CPU? 2. Are they all bad, no matter what chipset is used (Intel, Motoral, Ambient)? If not, which offer good enough quality to handle a single POTS line? 3. Why are they often bad quality? Because the driver itself is badly written? Because PC's don't have enough speed to handle the tasks using their own CPU (hard to believe, but I don't know)? Thank you. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
I'd say in life you get what you pay for.. and sometime you even pay for stuff that should be free.. These knockoff cards, can be built in-house for 20$ or less using an old walkie talkie, a rope, some standard matches, and an old MCgyver Tv episode..They do just that, echo the sound back to the other end.. no seriously.. Used 3, all 3 where thrown out either a window, or another opening .. It's great for testing don't get me wrong, once PSTN echo starts to drive you or the other party mad , or your cheap cap's start to go off specs, you'll say I should of bought 1 of the 50$ instead of 5 of the $10 ones.. of course, same strategy goes with china knockoffs, you run 6 pair of shoes for the price of 1 that lasts 6 times the other.. So basically for 10$ try it out.. Then when you want 2-3 ports, or do voice rec (spynx openmrc etc whatever) you'll need quality My 0.02 -Original Message- From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users- boun...@lists.digium.com] On Behalf Of Andrew Joakimsen Sent: May-06-09 7:01 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] Questions on X100P/X101P cards I use these cards and they work pretty well. FWIW when Digium sold them they were also just winmodems with a resistor removed to change the PCI device ID. Later on the Zaptel driver included the device ID of the winmodem. I used to be able to get the winmodem itself for under $10, but I think they are discontinued now. Ambient = Intel, FWIW. If you want I'll dig out out and give you the details. If you need a large quantity I would try to find the winmodems that are compatible. On Wed, May 6, 2009 at 08:43, Vincent vincent.delpo...@bigfoot.com wrote: Hello, I'm looking for a dirt cheap solution for SOHO use to handle at most a couple of POTS lines, and I notice that X10?P cards go for $15 on eBay as opposed to $90 for an OpenVox card or over $200 for a Sangoma. I have a couple of questions about those cheap FXO cards: 1. Are they all glorified softmodems, ie. none has an on-board CPU or DSP and outsources all processing to the computer's CPU? 2. Are they all bad, no matter what chipset is used (Intel, Motoral, Ambient)? If not, which offer good enough quality to handle a single POTS line? 3. Why are they often bad quality? Because the driver itself is badly written? Because PC's don't have enough speed to handle the tasks using their own CPU (hard to believe, but I don't know)? Thank you. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
On Wed, May 6, 2009 at 8:47 PM, ContactTel Business li...@contacttel.com wrote: I'd say in life you get what you pay for.. and sometime you even pay for stuff that should be free.. I have to agree. I have a few of these cards I started out with. They were great for the wow, I finally got asterisk to do something but worthless for actually running in a system for any kind of real work. That being said, I have every intention of leaving one in the system as a quick way to get a cordless phone in our work area (we have an old cordless telephone laying around... hook it up, lets me call up front with no problems... that I can't live with). I would not suggest using these cheap cards in production systems where a little bit of bad service really matters. After all, it's for the phone system the one thing most people assume just always works... as always... ymmv.. -- jon ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
Jonathan Moore wrote: On Wed, May 6, 2009 at 8:47 PM, ContactTel Business li...@contacttel.com wrote: I'd say in life you get what you pay for.. and sometime you even pay for stuff that should be free.. I have to agree. I have a few of these cards I started out with. They were great for the wow, I finally got asterisk to do something but worthless for actually running in a system for any kind of real work. That being said, I have every intention of leaving one in the system as a quick way to get a cordless phone in our work area (we have an old cordless telephone laying around... hook it up, lets me call up front with no problems... that I can't live with). Not sure how you would do that, as the X100 card is an FXO card, won't provide either battery or dial tone to the cordless. What you will want for that is an FXS card or ATA. The X100 card will connect to a central office line, and with the later software echo cancel works OK. Not nearly as bad as some have made it out to be, though for US/Canada lines. Not suitable for UK and others John Novack -- Dog is my co-pilot ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Questions on X100P/X101P cards
John Novack ha scritto: Not sure how you would do that, as the X100 card is an FXO card, won't provide either battery or dial tone to the cordless. What you will want for that is an FXS card or ATA. The X100 card will connect to a central office line, and with the later software echo cancel works OK. Not nearly as bad as some have made it out to be, though for US/Canada lines. Not suitable for UK and others The problem is: analog line is a delicated environment where impedance, volts, and line quality are some of the critical components. I found my X100 cards failing in production, no software component can solve the line impedance or other physical things. I try but no way out. After i bougt a 'real' analog board, even the worst is much much much better. I now, the cost is a problem, and there is NOT a single cheap analog board from DIGIUM or SANGOMA or others Bye. begin:vcard fn:Massimo Nuvoli n:Nuvoli;Massimo org:Progetto Archivio SRL adr:;;Via Giustetto 75;Abbadia Alpina Pinerolo;TO;10060;Italia email;internet:mass...@archivio.it title:Amministratore Delegato tel;work:0121303544 tel;fax:0121040601 x-mozilla-html:FALSE url:www.progettoarchivio.com version:2.1 end:vcard signature.asc Description: OpenPGP digital signature ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
