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Re: [Sip] draft-ietf-sip-location-conveyance - Question about potential usage of the Geolocation header
On Aug 13, 2008, at 9:03 AM, Bartłomiej Kołakowski wrote:
Hello,
I have got such concern regarding location conveyance in SIP
messages: I am designing IMS Appilcation Server, acting as a proxy,
that would query network elements for location information. As you
wrote proxies cannot insert message body, so the only way is to
provide location by reference. This requires appling SUBSCRIBE-
NOTIFY mechanism, which makes the architecture of the solution quit
complex.
In order to make it simpler I thought about including location
information as locationValue inside the Geolocation header. In fact
we do not need location represented with coordinates, but with cell-
id (that's mobile network). PIDF-LO does not support it, but maybe
inside a header that would be possible? There would be also an issue
in indicating loaction target whose location is included (we plan to
include both A and B parties location). Geolocation header would
look like this:
Geolocation: {cell-id-3gpp} ;location-target="bob at plus.pl";inserted-
by="las at plus.pl"
What do you think about souch a usage of Geolocation header, maybe
you could give us some other solution?
have you looked at RC 3455? This defines IMS headers for cell-ID based
location.
--
Dean
___________________________________From sip-bounces at ietf.org Mon Aug 18 10:00:12 2008
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From: Dean Willis <dean.willis at softarmor.com>
To: =?ISO-8859-2?Q?Bartłomiej_Kołakowski?= <b.kolakowski at plus.pl>
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Cc: sip at ietf.org, draft-ietf-sip-location-conveyance at tools.ietf.org
Subject: Re: [Sip] draft-ietf-sip-location-conveyance - Question about
potential usage of the Geolocation header
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On Aug 13, 2008, at 9:03 AM, Bartłomiej Kołakowski wrote:
Hello,
I have got such concern regarding location conveyance in SIP
messages: I am designing IMS Appilcation Server, acting as a proxy,
that would query network elements for location information. As you
wrote proxies cannot insert message body, so the only way is to
provide location by reference. This requires appling SUBSCRIBE-
NOTIFY mechanism, which makes the architecture of the solution quit
complex.
In order to make it simpler I thought about including location
information as locationValue inside the Geolocation header. In fact
we do not need location represented with coordinates, but with cell-
id (that's mobile network). PIDF-LO does not support it, but maybe
inside a header that would be possible? There would be also an issue
in indicating loaction target whose location is included (we plan to
include both A and B parties location). Geolocation header would
look like this:
Geolocation: {cell-id-3gpp} ;location-target="bob at plus.pl";inserted-
by="las at plus.pl"
What do you think about souch a usage of Geolocation header, maybe
you could give us some other solution?
have you looked at RC 3455? This defines IMS headers for cell-ID based
location.
--
Dean
_______________________________________________________
Sip mailing list https://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors at cs.columbia.edu for questions on current sip
Use sipping at ietf.org for new developments on the application of sip
____
Sip mailing list https://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors at cs.columbia.edu for questions on current sip
Use sipping at ietf.org for new developments on the application of sip