Mike, do you mean a 56Kb/s modem or do you mean Cat3 or?
Alternatively put, where are you trying to send the video? Inside a building or out across a city?
Do you need live video?
You might be better off with a camera that can do a scheduled image upload.
A JPG snapshot from a 1080p camera will run around 400KB. At 28.8Kbps, that would be an ~2 minute upload time. If you set a snapshot interval of 5 minutes you could probably very easily work on a dialup connection and have relatively recent images of the site along with historical data.
If you want live video, you're going to be stuck with a very low resolution and framerate, I would almost say 1 really good image every 5 minutes is better than 600 (2 fps for 5 minutes = 600 images) crappy images.
FLIR Security | 07/28/14 06:34pm
Video = moving images.
You might be able to achieve multiple still images over X period of time.... but that aint video, imo.
Have you considered point-point wireless relay?
IPVMU Certified | 07/28/14 08:06pm
Thanks! Point-to-point is a very good mid- to hi-bandwidth solution when the ends and any mid-points are defined.
My other issue is the portabilty of the solution ... typically will be on-site 30-60 days, then on to the next location. I assume setting up the mid-points to hop a signal would be too complicated ongoing.
Adpro pioneered transmission of CCTV over PSTN with modems in the 1980s wIth their Fastscan product. They are still around today and have evolved the product range as HD and IP has emerged.
Yes you can use TeleEye PRO if any.
Now they work with IP video, but their compression is the best for low bandwidth.
Using 33600 bps modem you can get 10 fps at CIF resolution.
I worked with teleeye for years..great but not cheap.
regards from Croatia
This producer offers two cameras streaming via GSM (3G/...): http://jablocom.com/products/#cams, maybe it will meet your needs.
Btw, we just added a test report on this: Testing IP Video - Super Low Bandwidth
The net/net is that you can use a regular H.264 IP camera or DVR, just set it to QVGA / QCIF, 5fps or lower and with moderately higher increase in compression.
Videos / images and charts in the test report.