I have an asterisk home PBX and I recently got a Cisco 7960G on eBay. So far I got everything working but the background images are quite tricky. I followed one short how-to and I was able to actually upload an image onto the phone. But when I tried making my own image, it just fails weirdly. Left to right, the image starts to display in about 1/3 of the original image and it is then wrapped around so the first 1/3 of the image is on the far right. I checked that my image is 90×56 greyscale bmp just as the example given on that website. The example image works fine. Can someone please tell me what it is I'm doing wrong?
I am serving the image from nginx over http (not https), the line in SIPDefault.cnf is:
(breaking the link up with spaces so that stackexchange doesn't think this is a link. I don't have enough rep to post that many links, apparently.
logo_url: "http:// my_server_hostname/ sip/ homer.bmp"
This does not work at all:
How it looks on my phone:
Best Answer
Okay, so it was all down to bmp encoding. When exporting (in GIMP) with these settings, it does work all okay. Sorry for wasting your time :-)