Thread Subject: Re: Subpart ADefinitions-TTY-Action Needed

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From: Diane Golden
Date: Tue, May 01 2007 1:00 PM
Subject: Re: Subpart ADefinitions-TTY-Action Needed

As I recall, the issue with the definition of TTY was related to the telecom
technical standards. The current definition only includes "text based
communications". That seems to be interpreted to mean only text-to-text
communications -- not text/voice intermixed. As a result, the telecom
technical standards that require things like voice mail and IVR to be
"usable by TTY users with their TTYs" doesn't cover VCO and HCO users. So
either the technical standards need to not use the term TTY or the
definition needs to include text/voice mixed calls.

Diane


Diane Cordry Golden, Ph.D., Director
Missouri Assistive Technology
816/350-5280 (direct voice)
= EMAIL ADDRESS REMOVED =
www.at.mo.gov

-----Original Message-----
From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ]On Behalf Of Schomburg, Paul
Sent: Tuesday, May 01, 2007 8:11 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed



Folks: This may be too broad a definition and might include non-standard
proprietary coding or really any text messaging (IM) service one could
imagine. I think it should be more narrowly defined as follows:

An abbreviation for teletypewriter. Machinery or equipment that
employs interactive text based communications through the transmission of
coded signals across the public switched telephone network in compliance
with TIA-825-A, A Frequency Shift Keyed Modem For Use On The Public Switched
Telephone Network; or across an IP network in compliance with TIA-1001,
Transport of TIA-825-A Signals over IP Networks.

Thanks, Paul

From: Gregg Vanderheiden
Date: Tue, May 01 2007 5:35 PM
Subject: Re: Subpart ADefinitions-TTY-Action Needed

I think we need to separate TTY (which was defined for PSTN) with general
real-time text communication.



Suggest





TTY Machinery or equipment that employs interactive text based
communications through the transmission of coded signals across the public
switched telephone network in compliance with TIA-825-A, A Frequency Shift
Keyed Modem For Use On The Public Switched Telephone Network;



Real-time text. Text which is transmitted within 1 second of entry
providing a smooth flow of conversational text that can be mixed with
speech.





(TIA-1001 is a standard for intra-trunk communication which is a carrier
only concern. The US government wouldn't be operating telephone trunks. )


Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Schomburg,
Paul
Sent: Tuesday, May 01, 2007 8:11 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed

Folks: This may be too broad a definition and might include non-standard
proprietary coding or really any text messaging (IM) service one could
imagine. I think it should be more narrowly defined as follows:

An abbreviation for teletypewriter. Machinery or equipment that employs
interactive text based communications through the transmission of coded
signals across the public switched telephone network in compliance with
TIA-825-A, A Frequency Shift Keyed Modem For Use On The Public Switched
Telephone Network; or across an IP network in compliance with TIA-1001,
Transport of TIA-825-A Signals over IP Networks.

Thanks, Paul

From: Jessica M. Brodey
Date: Tue, May 01 2007 7:45 PM
Subject: Re: Subpart ADefinitions-TTY-Action Needed

I understand the desire to separate the definitions, but we do need to
recognize that TTYs have expanded from their once traditional and narrowly
defined usage, and are no longer limited to the PSTN. As such, it is
important that our definition reflect the current scope of TTYs. This
should include VoIP, Internet Telephony, cellular networks, and
computer-based TTYs. I believe this is why the new definition was drafted
in the first place.



Jessica Brodey



_____

From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Gregg
Vanderheiden
Sent: Tuesday, May 01, 2007 7:24 PM
To: 'TEITAC Subpart A Subcommittee'; = EMAIL ADDRESS REMOVED =
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed



I think we need to separate TTY (which was defined for PSTN) with general
real-time text communication.



Suggest





TTY Machinery or equipment that employs interactive text based
communications through the transmission of coded signals across the public
switched telephone network in compliance with TIA-825-A, A Frequency Shift
Keyed Modem For Use On The Public Switched Telephone Network;



Real-time text. Text which is transmitted within 1 second of entry
providing a smooth flow of conversational text that can be mixed with
speech.





(TIA-1001 is a standard for intra-trunk communication which is a carrier
only concern. The US government wouldn't be operating telephone trunks. )


Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Schomburg,
Paul
Sent: Tuesday, May 01, 2007 8:11 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed

Folks: This may be too broad a definition and might include non-standard
proprietary coding or really any text messaging (IM) service one could
imagine. I think it should be more narrowly defined as follows:

An abbreviation for teletypewriter. Machinery or equipment that employs
interactive text based communications through the transmission of coded
signals across the public switched telephone network in compliance with
TIA-825-A, A Frequency Shift Keyed Modem For Use On The Public Switched
Telephone Network; or across an IP network in compliance with TIA-1001,
Transport of TIA-825-A Signals over IP Networks.

Thanks, Paul

From: Gregg Vanderheiden
Date: Wed, May 02 2007 8:55 AM
Subject: Re: Subpart ADefinitions-TTY-Action Needed

I agree and brought this up in the Telecom committee. With PSTN it is
clear. With IP, if you require ALL you require a lot of different
protocols. So I have suggested that we select the one(s) that people think
must be supported and require support to just those. (or even one).




Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Deborah Buck
Sent: Wednesday, May 02, 2007 9:40 AM
To: 'TEITAC Subpart A Subcommittee'; = EMAIL ADDRESS REMOVED =
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed

The Subpart A Workgroup will not take action on this term. We will await
input and recommendations from the Telecom Group.



-----Original Message-----
From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Schomburg,
Paul
Sent: Wednesday, May 02, 2007 10:35 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed



Greg: I will try to provide some more information on TIA-1001, but I
suggest that this be discussed in the Telecom Subcommittee. My main concern
is that the current 255 rules require telecommunications equipment to
support "TTY signal compatibility" which includes support for "all
cross-manufacturer non-proprietary standard signals used by TTYs." Thus the
definition of TTY adopted by TEITACC could change what products need to be
compatible with. For this reason, I would prefer that the definition of TTY
be narrowly focused on a standards-based protocol. I think the suggestion
to define "real-time text" separately may have merit, so long as
compatibility with any and all kinds of text messaging is not required under
255 for all telecommunications products.



Thanks, Paul




_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Gregg
Vanderheiden
Sent: Tuesday, May 01, 2007 7:24 PM
To: 'TEITAC Subpart A Subcommittee'; = EMAIL ADDRESS REMOVED =
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed



I think we need to separate TTY (which was defined for PSTN) with general
real-time text communication.



Suggest





TTY Machinery or equipment that employs interactive text based
communications through the transmission of coded signals across the public
switched telephone network in compliance with TIA-825-A, A Frequency Shift
Keyed Modem For Use On The Public Switched Telephone Network;



Real-time text. Text which is transmitted within 1 second of entry
providing a smooth flow of conversational text that can be mixed with
speech.





(TIA-1001 is a standard for intra-trunk communication which is a carrier
only concern. The US government wouldn't be operating telephone trunks. )


Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Schomburg,
Paul
Sent: Tuesday, May 01, 2007 8:11 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed

Folks: This may be too broad a definition and might include non-standard
proprietary coding or really any text messaging (IM) service one could
imagine. I think it should be more narrowly defined as follows:

An abbreviation for teletypewriter. Machinery or equipment that employs
interactive text based communications through the transmission of coded
signals across the public switched telephone network in compliance with
TIA-825-A, A Frequency Shift Keyed Modem For Use On The Public Switched
Telephone Network; or across an IP network in compliance with TIA-1001,
Transport of TIA-825-A Signals over IP Networks.

Thanks, Paul

From: Gregg Vanderheiden
Date: Wed, May 02 2007 9:05 AM
Subject: Re: Subpart ADefinitions-TTY-Action Needed

Agree this is telecom issue and it is being discussed there.



I was just responding to the issues raised here. Best to let the
definitions come from the group that is covering that aspect I would assume.



Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Schomburg,
Paul
Sent: Wednesday, May 02, 2007 9:35 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed

Greg: I will try to provide some more information on TIA-1001, but I
suggest that this be discussed in the Telecom Subcommittee. My main concern
is that the current 255 rules require telecommunications equipment to
support "TTY signal compatibility" which includes support for "all
cross-manufacturer non-proprietary standard signals used by TTYs." Thus the
definition of TTY adopted by TEITACC could change what products need to be
compatible with. For this reason, I would prefer that the definition of TTY
be narrowly focused on a standards-based protocol. I think the suggestion
to define "real-time text" separately may have merit, so long as
compatibility with any and all kinds of text messaging is not required under
255 for all telecommunications products.



Thanks, Paul




_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Gregg
Vanderheiden
Sent: Tuesday, May 01, 2007 7:24 PM
To: 'TEITAC Subpart A Subcommittee'; = EMAIL ADDRESS REMOVED =
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed



I think we need to separate TTY (which was defined for PSTN) with general
real-time text communication.



Suggest





TTY Machinery or equipment that employs interactive text based
communications through the transmission of coded signals across the public
switched telephone network in compliance with TIA-825-A, A Frequency Shift
Keyed Modem For Use On The Public Switched Telephone Network;



Real-time text. Text which is transmitted within 1 second of entry
providing a smooth flow of conversational text that can be mixed with
speech.





(TIA-1001 is a standard for intra-trunk communication which is a carrier
only concern. The US government wouldn't be operating telephone trunks. )


Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Schomburg,
Paul
Sent: Tuesday, May 01, 2007 8:11 AM
To: TEITAC Subpart A Subcommittee; = EMAIL ADDRESS REMOVED =
Cc: Schomburg, Paul
Subject: Re: [teitac-subparta] Subpart A Definitions-TTY-Action Needed

Folks: This may be too broad a definition and might include non-standard
proprietary coding or really any text messaging (IM) service one could
imagine. I think it should be more narrowly defined as follows:

An abbreviation for teletypewriter. Machinery or equipment that employs
interactive text based communications through the transmission of coded
signals across the public switched telephone network in compliance with
TIA-825-A, A Frequency Shift Keyed Modem For Use On The Public Switched
Telephone Network; or across an IP network in compliance with TIA-1001,
Transport of TIA-825-A Signals over IP Networks.

Thanks, Paul