USB FXS Device

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Anyone manage to make one of these work *on* an Asterisk server? Have been researching most of the morning and have only found windows-centric devices that talk SIP to asterisk (of course). I want one that has a Linux driver that preferably could be an asterisk channel itself.
WIthout spending a gazillion dollars of course 🙂

I found this: Broadtel UPA-1. I have email inquiries into them, but I
saw in a blog post that they would “provide Linux drivers on order”, but nothing further…

Cheers,

j

14 thoughts on - USB FXS Device

  • Also found the “Digium S100U” which is exactly what I want… but doesn’t seem to be available anymore?

    Cheers,

    j

  • Yes, but that goes against the “spending a gazillion dollars”
    requirement, and though I didn’t specify my needs, I am just looking for a single FXS port.

    Basically I would like to build an ATA out of a Raspberry Pi 🙂 Ideally for < $100. Cheers, j

  • why punish yourself like that ?
    pap2t is 2xFXS hanging off a network jack for $50

    Half your budget, twice the density, and a nice box too

  • why not just get a usb headset and use with one of the sip client apps ?

    if you’re going to the trouble of having a phone to plug in the fxs why rely on the pc at all ?
    use one of the spa type routers and plug the pc into it and the phone or if you have a free network jack just use a pap2t

    Then it works whether you have to reboot the pc etc and does not steal cpu cycles from the pc.

  • Doesn’t support OpenVPN…

    Our architecture (hosted PBX offering) works entirely over OpenVPN – the phones we provide do it natively (Yealink). Haven’t been able to find an ATA that will. So our customers that have analog devices today need an ATA that can reach their hosted PBX. Today we front a PAP2T
    (actually the Cisco equiv now that the Linksys line is EOL) with a DD-WRT box whose only function is to provide OpenVPN access to their hosted PBX.

    Now I have this awesome little box – the Raspberry Pi – that can run asterisk natively for $35 (well closer to $50 with the needed parts).
    Obviously it can also run OpenVPN. Gives me all kinds of possibilities for tracking link quality. If I could find a USB FXS dongle that would work as an asterisk channel (much like Xorcom devices are supported by dahdi), I would be all set. I wouldn’t expect such a device to cost much more than $30 – $50, which gets me what I need for < $100, which is currently what I spend on the DD-WRT/Cisco combo. The basic question was “has anyone made a USB FXS device work with asterisk”. Now that I have additionally defended my architecture decisions, can anyone actually answer the question? Thanks, j

  • Jeff LaCoursiere writes:

    The Open USB FXS project is exactly what you want. It seems to be discontinued. Depending on volume, it might be worth resurrecting the project — it looks like the price could get reasonable if you need a few thousand…

    It does not seem like there is anything commercially available right now.

    /Benny

  • That does indeed seem to be the case. I found some info on Open USB FXS
    – a circuit board template and BOM 🙂 Probably a bit closer to the electronics than I really wanted to be, and they don’t sell the kit anymore. Too bad.

    Well if anyone runs across an asterisk-channel-supported USB FXS device, please let me know. An ATA that does OpenVPN would be just as welcome.
    If Xorcom would come out with a 1 or 2 port FXS device I would be all set! How about it Tzafrir?

    Cheers,

    j

  • i manage to make call and receive call , IVR , GSM gateway less than 100 $.https://www.facebook.com/photo.php?fbid=451312488254098&set=a.435627683155912.115286.100001260518622&type=3&theater see the pic, and let me know if it is useful to you..it is raspberry pi and 3G usb dongle with voice support.http://www.huaweidevice.co.in/Products/MobileBroadband/E303c.php and also there are lots of usb dongle which are voice enabled and successfully works with asterisk.around 40 $
    mahendrakumarAlmightyTech

  • Nifty! Love this Raspberry Pi. I keep thinking of new things I want to do with it. If I could only clone myself. I have a “video doorbell”
    project at the top of the list, if I don’t find a USB FXS device 🙂 It reminds me of all the hubbub over running asterisk on the Plug PC (which seems to have died off); this has even more power and more utility IMO.

    Assuming you are talking about chan_mobile related devices, not really what I am after. What image did you use for the Pi? Incredible PBX?

    Cheers,

    j

  • Jeff LaCoursiere writes:

    The Raspberry Pi has some problems with USB cameras and other USB video capture devices (due to the USB host controller).

    Hopefully the problems will be solved soon, but until then it is probably not the ideal device for that purpose.

    /Benny

  • I have heard that. In fact originally I started looking at this differently – that I could couple a SLIC design with the Raspberry Pi to make an FXS ATA, using the Pi’s audio jack and the GPIO, with some kind of mic… I found this:

    https://docs.google.com/viewer?url=http%3A%2F%2Fwww.rowetel.com%2Fdownloads%2Fslic_4281219.pdf

    An old (expired!) patent for a SLIC with discrete components… might be a fun project…

    I got talked into looking for a USB based solution by a friend, which seemed like an easy way out. Until I discovered that it just doesn’t exist 🙂

    j

  • I don’t know if these are available in the US (presuming you are from that area in te world), but there are DSL modem/router suppliers who sell an Ethernet version of their product complete with internal ATA. I
    know some of them have VPN functionality, so that might work around some of your limitations. They are not Raspberry Pi priced, but not *that*
    much more.

    Developing something yourself from the ground up might be more expensive in the short/mid term

    I am thinking along the lines of a Draytek Vigor2110Vn, the wifi and routing capabilities are not used, but the SIP, VPN and FXS should be able to fit your needs. And with the possibility for automatic provisioning using an ACS..

  • Sadly this doesn’t seem to do OpenVPN, though it does several other flavors we might be able to support. Thanks for the tip! Will be looking into it.

    Cheers,

    j