3CX phone: video support

[KerryG]

I finally have everything working properly with 0.3b hardware. The latest softphone, the correct settings on the GXV and we have video! Its poor quality (in my opinion) due to the h263 vs h264 but it is what is it for now.

 

[Vali_3CX]

Its poor quality (in my opinion) due to the h263 vs h264

Hi Kerry

Kerry, you're talking about image sent by GXV and displayed on 3CXphone? When I saw first time the GXV in action, first I've exclaimed: "wth is looking so bad?!?" I've suspected there is a protecting tape over GXV's cam, no kidding. So, if you have some other phone models, please try to see if image quality is better.

Regards
vali

 

[KerryG]

Systems using h263 simply do not look as good as ones using h264. I do understand that h264 is a patent-encumbered cluster. I would love to see support for a good open source codec but that would require that all the phone manufacturers would push updates as well.

 

[LeonidasG_3CX]

Here's something for ya...

It seems this bad Quality problem is actually coming from the GXV3140 phone.
I have a Yealink Video Phone here which does not seem to have the same Video Quality issues as the Image Quality is pretty nice and sharp unlike the Grandstream that makes the image blurry every time you move an inch.

Grandstream GXV3140
Honestly, the Yealink beats the GXV3140 in every aspect in my opinion.
The Grandstream is slow as hell, it took me 1 and half hour to upgrade the firmware, the phone it's self often gets stuck because of the slowness of the interface.
It can play Videos / FLV / Flash / MP3 / Connect to sites like youtube, Facebook, radio, web browsing twitter and many others and do a bunch of stuff that an office phones doesn't need to.
It's simply too slow to use as a phone. When you dial a number, the dialer delay is so much that it shows up after 2-3 seconds sometimes, and you can even make the phone freeze by attempting to Dial a number.

I'll give it points for having nice looks.



Yealink Video Phone
While the Yealink on the other hand is like having a Modern Android Phone, it gives the feel of an i-Phone, and the interface does not lag at all. Everything is as it should be.
It supports fast switching between 20 different accounts with 2 taps on the screen.
This is more of an office phone with all "Needed" features rather than the "Media Center" phone grandstream provides.

 

[KerryG]

That's odd, it took me about 5 minutes to upgrade the firmware on the GXV3104. I do agree it does stuff a phone doesn't need to do. The video quality is much better than the older GXV3000 and I actually liked the video quality when using two GXV3104's but going from GXV3104 to 3CX Softphone I have a real bad drop in image quality.

 

[Borsoock]

I've tested GXV3140 with software videophone form QuteCom some time ago and video quality was quite good with h.264 codec. I didn't try it with new 3CX softpohone so I can't make comparison.

 

[SY]

H.264 is designed to save traffic by improving the compression
Have no idea how quality of video with H264 can be better then H263.
Can somebody explain why it may happen?

Thanks

 

[KerryG]

Because h264 is a better codec. Why does g729 sound better than most other high compression codecs...because its written better. If h263 was a superior codec than why didnt it become the standard for pretty much all video online these days? Its because the quality isnt very good.

 

[KerryG]

From apple.com

How does H.264 compare with H.263?
H.263, created by the ITU, is primarily known as a video codec designed for low-latency video conferencing applications. H.264 has been adopted by the ITU as the successor to H.263 for these same low-latency video conferencing scenarios. H.264 provides much higher quality than H.263 across the entire bandwidth spectrum, thanks to advancements in technology since the introduction of H.263 more than a decade ago. H.264 is already being adopted in video conferencing solutions such as Apple’s iChat AV in Tiger and products from Tandberg and Polycom, the two main suppliers of professional video conferencing systems.

 

[motls]

Re: 3CX phone system: h.264 video support

With increasing number of Video phones and IP cameras usage of bandwidth significantly increases especially since primary camera used to steam over WAN. Regarding H.264 support I totally agree that it should be available in commercial versions only. Many of my clients want to be able to monitor and record on their video phones what is going on in their conference rooms, client reception, employees, etc. Of course H.263 is great for couple video calls, however because H.263 is not bandwidth optimized it can't be used in places where multiple IP cameras or other video devices have been deployed. Video equipment manufacturers already bashed H.263 for video streaming as outdated and not bandwidth optimized.
If 3CX phone system not going to support H.264 it will lose more then gain.

 

[rudym]

Any plans to implement H264 on the windows phone