I'm looking into the various existing/former ways of handling
{Shared,Bridged} {Call, Line} Appearance to try to figure out who
supports what in existing software/firmware.
Does anyone know of an existing compilation of which types of support exist?
I know of "line-seize"/"call-info" style (documented by Broadsoft) and
two variations of "dialog;sla" style (one of of them documented by
draft-anil-sipping-bla), so far, but perhaps there's more?
I also have some information about which are supported by which phones,
but I'm sure my knowledge here is weak, because I can't even figure out
100% what the phone on my own desk supports. (A Polycom that I know does
"line-seize"/"call-info" but claims in documentation to support
draft-anil-sipping-bla-02) and I certainly don't know what other major
vendors do/don't support.
If such a compilation doesn't exist already, I'd gladly collect
information anyone has and put it together somewhere public. In my case,
I'm trying to write some software that is compatible with at least one
of the previous schemes (preferably whatever was/is most popular), but
it might also be useful as a reference for a future improved standard.
Matthew Kaufman
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