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Michael Robertson Unveils SIPphone

JimCricket writes "After almost a year of preparation, the person behind MP3.com and Lindows has unveiled his latest venture: SIPphone. According to a CNET article, the new company sells VoIP-based telephones. I wonder what kind of latency you get with these devices." Interestingly, the CNET article reveals the telephones "...can only call other phones that use the same technology."

5 of 236 comments (clear)

  1. Can only call other VoIP phones that use SIP by solidhen · · Score: 4, Informative

    From the FAQ:

    Q: Can I use software or what is called a softphone to make and receive calls with SIPphone?
    A: Although it may work, at this time we cannot offer support for anything but a certified SIP phone.

    Q: Are there other SIP phones I can order besides those offered at SIPphone?
    A: The SIP phones offered at SIPphone are designed to work out of the box with SIPphone with zero or minimal configuration. We also work to offer the most affordable SIP phones available in the world. Many SIP phones cost hundreds of dollars. SIPphone sells 2 phones for just $129.99. It may be possible to use the SIPphone directory with other phones, but no technical support is available at this time to support this.

    Q: I already own a SIP phone and I would like to use your SIPphone directory service. What should I do?
    A: First, you need to sign up with our service at SIPphone Sign Up. These are the settings that you will want to use:

    SIP Server: proxy01.sipphone.com (130.94.123.252)
    STUN Server: stun01.sipphone.com (69.0.208.27)
    NTP Server: ntp01.sipphone.com
    TFTP Server: tftp01.sipphone.com (130.94.123.253)

    Currently the SIPphone directory service has only been tested with the Grandstream BudgeTone 100 phone. Please check back for further updates on "SIPphone friendly" SIP phones.

    --
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  2. SIP Phones by Anonymous Coward · · Score: 5, Informative

    SIP is an IETF standard for voip, surely he just meant it could only phone other SIP phones! no need for any conspiracy theories! SIP is an open standard, and you can even get linux software linphone to use it... Just need a gateway to the traditional phone system and yer sorted.

  3. SIP is the way to go by Mickut · · Score: 5, Informative

    SIP is not limited to just VoIP, as the name says it is Session Initiation Protocol. There already is a reasonable GNU SIP library, so let's make that better, and then we can create an open source SIP capable VoIP-phone that could interoperate with this system as well as others.

    Other uses for SIP that could/should happen IMO are (starting a session of) multi-player games and messaging, conferencing software for sharing pictures, etc.

    Since SIP is basically just a handshake protocol, doing all those things shouldn't be impossible. Wanna play a game of chess or go with a pal? Just initiate a SIP connection, if their end supports your game and they are available, you've got a connection. No more application specific ports to configure to get a multiuser application work.

  4. It's SIP service, silly by Trinition · · Score: 5, Informative

    As the name implies and the article explains, the phone uses SIP, or Session Initiation Protocol. I did some research on SIP last year and found it to be somewhat intruiging.

    SIP is basically used for setting up the endpoints of a human communication channel over an IP-based network. It negotiates what kinds of communcations are supported on each end, and what protocols to use. So if a video-SIP-phone calls a regular analog phone via a SIP-PSTN proxy, the proxy would only support audio certain codecs. The calling video-SIP-phone and the proxy would negotiate to use only audio using a matching protocol and the cal would go through.

    And since SIP is a protocol just like SMTP or HTTP, it is very controllable. There are dozens of SIP products popping up from SIP servers to SIP proxies... and now SIP phones. For example, you can have a SIP proxy/server be concious of where a user is logged in and re-route SIP calls to their present location. As a Java programmer, I'm looking forward to the day when I find a reason to write a SIP Servlet.

    Furthermore, the latest version of Messenger in Windows XP supports SIP. I would think that this means a SIPPhone could call someone using Microsoft's Messenger on Windows XP. However, I was not able to confirm this with a breif perusal of the SIPPhone site, and they also state this only works with other SIPPhones. That may be an over-generalization to keep people from thinking it works with regular phones, or maybe they did something crazy with it.

    I'm crossing my fingers that it is a generic SIP endpoint that can contact any SIP-enabled device.

    1. Re:It's SIP service, silly by wfberg · · Score: 4, Informative

      I would think that this means a SIPPhone could call someone using Microsoft's Messenger on Windows XP. However, I was not able to confirm this with a breif perusal of the SIPPhone site, and they also state this only works with other SIPPhones.

      Check out the product spec from the manufacturer.
      The SIPPhone page states the make and model.

      Interoperable with various 3rd party SIP end user device, Proxy/Registrar/Server, and gateway products (e.g., MS Messenger, Cisco IP phone and gateway, etc)

      Support popular vocoders including G.723.1 (5.3K/6.3K), G.729A/B, G.711 (a-law and u-law), G.726, G.728, and wide-band G.722 (Model 102D). Dynamic negotiation of codec and voice payload length


      G.711 is the granddaddy of the voice codecs. It doesn't say it uses H.323, but I'm guessing it does, seeing as it interoperates with cisco and msn messenger voip.

      You can probably even use a different directory service than SIPPhone.com's ; the phone has a web interface for configuring it.

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