I've been puzzled why the OBi incoming caller-id is not shown on some of our phones. After some digging, I've found that there are actually two caller-id formats that are used in the US. (See:
http://melabs.com/resources/callerid.htm). The OBi is sending MMDF format (start with a 0x80 character). Some phones only support SMDF format (starts with 0x04) character. It would be helpful for me, and I suspect others too, if the current selection of Caller ID Methods which includes:
FSK(Bell 202)
could become something like
FSK(Bell 202) MMDF (Default)
FSK(Bell 202) SMDF
Since they both use the Bell 202 FSK protocol, I think this would be a relatively straightforward software change.
Thanks for your consideration!