[sip-comm] is there a way to disable presence of a contact?


#1

not all contacts support presence. is there a way to tell that no
subscribe should be sent to a contact?

-- juha

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#2

Hi

if contact is in contact list we subscribe for its presence, but you can
disable presence for the account and no subscription will be sent.

Cheers
damencho

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On Fri, Oct 1, 2010 at 11:34 PM, Juha Heinanen <jh@tutpro.com> wrote:

not all contacts support presence. is there a way to tell that no
subscribe should be sent to a contact?

-- juha

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#3

Damian Minkov writes:

if contact is in contact list we subscribe for its presence, but you can
disable presence for the account and no subscription will be sent.

yes, but many people have contacts, such as pstn numbers, in contact
list, which do not support presence. it would therefore make sense to
have a contact option that, if checked, prevents sending of subscribes
for that contact.

-- juha

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#4

Hey Juha,

На 06.10.10 12:35, Juha Heinanen написа:

Damian Minkov writes:

if contact is in contact list we subscribe for its presence, but you can
disable presence for the account and no subscription will be sent.

yes, but many people have contacts, such as pstn numbers, in contact
list, which do not support presence.

That does make sense from a technical point of view. Indeed why would
one want to send SUBSCRIBE messages for contacts that would never be
online.

I guess the first answer that comes to mind is "because one doesn't
really care". Many, probably even most, of the VoIP users would readily
spare the bandwidth if it means that they won't need to understand what
"subscribing for a presence status" actually means.

Besides the choice is not always that obvious. Many PBX installations
would actually send presence notifications for PSTN numbers that they
are handling. One could even imagine that every PSTN subscription could
get a presence notification depending on the status of the PSTN line or
the policy regarding the particular number (allowed, blocked).

So, at the end of the day, determining whether a number would return
notifications is something that only a pbx maintainer would really know
so it's probably not worth bothering the user with such details.

WDYT?

Emil

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