In order to have a picture show when you receive a call from a specific number, you will need to load a photo on the server and add then ass a SIP Header to the invite packet, with the instruction to fetch the relevant photo from the web share.
The instruction should look like this:
SIPAddHeader:
Call-Info: <http://10.3.5.80:8080/image/girl2.png>;purpose=icon
Caller-Image: <http://10.3.15.56/TFTP/111.png>
The phone needs to be configured as follows:
account.X.picture_info_enable =1
