Emergency Services and Service classes

[Roy, Radhika R, ALCOO]

Hi, Gary:

OK, now I understand your proposal and appreciate it.

Let me suggest how we can achieve the common goal:

1. Tom Taylor is analyzing the requirements of the emergency services. We
will be able to take care of the "priority" levels that have been proposed
by you.

2. Mike Buckley is working for QOS and we will be able to meet the
requirements of "quality" levels proposed by you.

However, the solutions of both depend on solving the bigger problems. That
is, we have to create the overall framework especially for the QOS. Mike,
myself, and other members of the SG16 are working for a long time on QOS and
you are hereby requested to participate in those discussions.

AT&T is also bringing contributions along the line for QOS and I have a
proposal how we can meet your proposed requirements as well.

Again, I appreciate your proposal because it helps to drive for finding a
common solution.

Best regards,
Radhika

-----Original Message-----
From: Gary Thom [mailto:gthom at delta-info.com]
Sent: Thursday, May 03, 2001 1:42 PM
To: Roy, Radhika R; ITU-SG16 at mailbag.cps.INTEL.COM
Subject: RE: Emergency Services and Service classes


Radhika,

I agree, lets try to harmonize all the requirements for service class
signalling. I would be happy to include other requirements, but I will need
input from others.

I tried to make this generic, and extensible. And not specific for emergency
services.

In particular, I have tried to abstract priority and quality (of media
streams) from quality of service signalling. I understand that there is work
being done on QOS signalling, and I am not trying to replace that, but maybe
be one level above that.

Gary
 --------------------------------------------
 Name   : Gary A. Thom
 Company: Delta Information Systems, Inc.
 Address: 300 Welsh Rd., Bldg 3
          Horsham, PA 19044 USA
 Phone  : +1-215-657-5270 x123
 Fax    : +1-215-657-5273
 E-mail : gthom at delta-info.com
 Website: www.delta-info.com
--------------------------------------------


-----Original Message-----
From: Roy, Radhika R, ALCOO [mailto:rrroy at att.com]
Sent: Thursday, May 03, 2001 11:58 AM
To: gthom at delta-info.com; ITU-SG16 at mailbag.cps.INTEL.COM
Subject: RE: Emergency Services and Service classes


Hi, Gary:

I provided some comments before. So, the same comments remain true.

The point is that we can accommodate the service class within the framework
of other requirements along with the specific requirements that you have
proposed.

For example, priority can be: 1. MLLP, 2. Emergency Services (as proposed by
you), and 3. Other standards/proposals.

Similarly, quality proposed by you can also be accommodated: 1. IETF
(guaranteed, controlled, best-effort), 2. TIPHON (Best, High, Medium,
Best-Effort - as proposed by you), 3. Other ISTU-T SGs, and 3. Other
standard bodies/forums.

In addition, there are other things as well. For example, there is a
relationship (or dependency) between the priority and QOS  at the call
level. RAS Messages only provide the pre-call level scenarios. This also
needs to be translated into call level scenarios.

So, the point that I like to point out is this: Let us address this from the
general framework point of view so that all cases are satisfied including
yours without "hard-wired" to any particular solution.

AT&T is bringing contributions along this line for the QOS and others.

Best regards,
Radhika R. Roy


-----Original Message-----
From: Gary Thom [mailto:gthom at delta-info.com]
Sent: Thursday, May 03, 2001 11:07 AM
To: ITU-SG16 at MAILBAG.INTEL.COM
Subject: Emergency Services and Service classes


All,

Attached is a preliimary copy of a contribution to the upcomming Brazil
meeting. It still needs US approval.

It defines service classes using the generic extensible framework, and
should be more applicable than just emergency services. Extension markers
were put in to allow addition of new priority and quality values.

Let me know if you have any comments, suggestions, or questions.

Thanks
Gary

 --------------------------------------------
 Name   : Gary A. Thom
 Company: Delta Information Systems, Inc.
 Address: 300 Welsh Rd., Bldg 3
          Horsham, PA 19044 USA
 Phone  : +1-215-657-5270 x123
 Fax    : +1-215-657-5273
 E-mail : gthom at delta-info.com
 Website: www.delta-info.com
--------------------------------------------

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