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From: Russ Housley <housley@vigilsec.com>
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Date: Fri, 22 Apr 2016 15:12:31 -0400
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Subject: [stir] ATIS Publishes Calling Party Spoofing Mechanisms and
 Mitigation Techniques Whitepaper
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Please see attached communication from Susan M. Miller, ATIS President =
and CEO.

I will have this letter posted as a liaison statement.

Russ

=3D =3D =3D =3D =3D =3D =3D =3D =3D =3D=20

ATIS
1200 G Street, NW Suite 500
Washington, DC 20005

April 21, 2016

via email, housley@vigilsec.com
Russ Housley
IETF, STIR WG Co-Chair
c/o IETF Secretariat
48377 Fremont Blvd., Suite 117
Fremont, California 94538

Re: ATIS White Paper on Calling Party Anti Spoofing

Dear Mr. Housley:

On behalf of the Alliance for Telecommunications Industry Solutions =
(ATIS), I am pleased to announce the publication of ATIS=E2=80=99 White =
Paper on Calling Party Spoofing Mechanisms and Mitigation Techniques. =
This white paper provides information on caller ID spoofing mitigation =
techniques and is available via the ATIS White Paper Library at: =
http://www.atis.org/01_resources/whitepapers.asp.

Both existing and proposed caller ID mitigation techniques are examined, =
including technical specifications and standards that would allow phone =
numbers to be =E2=80=9Csigned=E2=80=9D at the origin and =E2=80=9Cverified=
=E2=80=9D at the termination. The paper concludes that Caller ID =
spoofing is not a problem that can be fixed with a single solution and, =
as an alternative, proposes a layered approach, similar to that used in =
cybersecurity efforts.

This white paper is just one of several ATIS work programs aimed at =
examining and mitigating challenges associated with caller ID spoofing. =
Other relevant work is being completed in ATIS=E2=80=99 Next Generation =
Interconnection Interoperability Forum (NGIIF), which has recently =
published its Next Generation Network (NGN) Reference Document, =
outlining Caller ID issues and their impacts to consumers and to the =
network. The ATIS Packet Technologies and Systems Committee (PTSC) is =
working on a Technical Report on Originating Party Spoofing in IP =
Communication Networks. Additionally, ATIS is working with the SIP Forum =
on proposed enhancements to Secure Telephone Identity Revisited (STIR). =
We would be happy to provide further information on its Caller ID =
spoofing mitigation work programs.
=EF=BF=BC
If you have any questions or would like further information, please do =
not hesitate to contact me at smiller@atis.org or (202) 434-8828.

Sincerely,
Susan Miller President and CEO
=EF=BF=BC=EF=BF=BC=

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<p class=3D"MsoNormal">Please see attached communication from Susan M. =
Miller, ATIS President and CEO.</p><div><br></div><div>I will have this =
letter posted as a liaison =
statement.</div><div><br></div><div>Russ</div><div><br></div><div>=3D =3D =
=3D =3D =3D =3D =3D =3D =3D =
=3D&nbsp;</div><div><br></div><div>ATIS</div><div><div>1200 G Street, NW =
Suite 500</div><div>Washington, DC =
20005</div></div><div><br></div><div><div>April 21, =
2016</div><div><br></div><div>via email, <a =
href=3D"mailto:housley@vigilsec.com">housley@vigilsec.com</a></div><div>Ru=
ss Housley</div><div>IETF, STIR WG Co-Chair</div><div>c/o IETF =
Secretariat</div><div>48377 Fremont Blvd., Suite 117</div><div>Fremont, =
California 94538</div><div><br></div><div>Re: ATIS White Paper on =
Calling Party Anti Spoofing</div><div><br></div><div>Dear Mr. =
Housley:</div><div><br></div><div>On behalf of the Alliance for =
Telecommunications Industry Solutions (ATIS), I am pleased to announce =
the publication of ATIS=E2=80=99 White Paper on Calling Party Spoofing =
Mechanisms and Mitigation Techniques. This white paper provides =
information on caller ID spoofing mitigation techniques and is available =
via the ATIS White Paper Library at: <a =
href=3D"http://www.atis.org/01_resources/whitepapers.asp">http://www.atis.=
org/01_resources/whitepapers.asp</a>.</div><div><br></div><div>Both =
existing and proposed caller ID mitigation techniques are examined, =
including technical specifications and standards that would allow phone =
numbers to be =E2=80=9Csigned=E2=80=9D at the origin and =E2=80=9Cverified=
=E2=80=9D at the termination. The paper concludes that Caller ID =
spoofing is not a problem that can be fixed with a single solution and, =
as an alternative, proposes a layered approach, similar to that used in =
cybersecurity efforts.</div><div><br></div><div>This white paper is just =
one of several ATIS work programs aimed at examining and mitigating =
challenges associated with caller ID spoofing. Other relevant work is =
being completed in ATIS=E2=80=99 Next Generation Interconnection =
Interoperability Forum (NGIIF), which has recently published its Next =
Generation Network (NGN) Reference Document, outlining Caller ID issues =
and their impacts to consumers and to the network. The ATIS Packet =
Technologies and Systems Committee (PTSC) is working on a Technical =
Report on Originating Party Spoofing in IP Communication Networks. =
Additionally, ATIS is working with the SIP Forum on proposed =
enhancements to Secure Telephone Identity Revisited (STIR). We would be =
happy to provide further information on its Caller ID spoofing =
mitigation work programs.</div><div>=EF=BF=BC</div><div>If you have any =
questions or would like further information, please do not hesitate to =
contact me at <a href=3D"mailto:smiller@atis.org">smiller@atis.org</a> =
or (202) 434-8828.</div><div><br></div><div>Sincerely,</div><div>Susan =
Miller President and =
CEO</div><div>=EF=BF=BC=EF=BF=BC</div></div></div></body></html>=

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