What is the best way to do call pickup? I see the following alternatives: 1) I don't take the proposal in draft-ietf-sip-service-examples-03.txt for serious, because you can only pick up call that you can hear in the neighbours room (which doesn't make too much sense in a multi-national company etc.).Also, if the phone doing the pickup is also registered with the same account as the phone that currently rings (but with a lower q value), that would effectively deregister the phone.
2) Subscribing to the state of a phone as proposed in draft-rosenberg-sip-call-package-00.txt? But is that draft still active? Is XML too complicated? Who is doing it or planning to do it? 3) Inviting all parties registered for the called id, but the parties with a low q value with a special Content-Disposition or Alert-Info; when the stateful proxy lowers its q value it reinvites the party with a different Content-Disposition or Alert-Info, so that it will ring normal. I would prefer 3 because that makes the job of the phone easy (maybe even compatible with existing "legacy" phones) and it should not be a too big problem for a proxy to invite all parties that come into question with that special information. And we don't need any new drafts for this. Is there another suggestion? Or am I missing a point again? Christian
winmail.dat
Description: application/ms-tnef
