A Test with High Definition Video Conferencing

I just participated in very successful proof of technology with Siemens OpenScape video conferencing products.

We made a point-to-point SIP high definition video conference over a local area network. Another test used H.323 protocol. We also included my SIP-enabled Nokia E61i in the conference over the office WiFi network in a direct multipoint call simply calling my phone’s IP address. Crystal clear sound.

The equipment statistics showed the following:

  • 1280×720 resolution (720p HD) at 30 frames per second
  • H.264 compression
  • aprox. 1780 kilobits per second for the compressed video stream


  • AAC-LC compression
  • aprox. 70 kilobits per second for the compressed audio stream

Total of aprox. 1850 kbps for excellent and smooth audio and video quality.

4 thoughts on “A Test with High Definition Video Conferencing”

  1. “The first single-vendor videoconferencing solution for everyone” was interesting, though I believe Digium’s Asterisk.org was the first project to bring HD video calls for everyone, for free as in beer and as in liberty. I didn’t look deeply enough at there but the linked address didn’t tell much about the technology behind it. I suppose we would be obligated to use Siemens’ abusive priced and IP-enabled PBX for that or at least some special equipment/IP phone, right?

    PS: their datasheet had not loaded here

  2. Hello Caio,
    I participated also in the proof of technology mentioned by Avi and I’d like to contribute saying to you that was nothing else supporting the test than both videoconferencing appliances. I mean, there was no SIP Server, or Siemens IP-PBX managing the conferencing. The HD videoconferencing we tested is SIP based fully open standard that can be used under any IP environment. For enterprises, it’s even cheaper than traditional videoconferencing systems and has a much better video quality.

    Best regards.

  3. Caio, we made videoconf tests with multi-vendor that day and it all worked out of the box.

    This is the proof that when using open standards as MPEG-4 and SIP, you are not obligated to use a single vendor solution. These equipments can be integrated in an Asterisk.org network too. They are an option of videoconference dedicated hardware if you don’t want to build one for your self.

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