Telchemy has
been an active participant in a wide range of standards
organizations, including ATIS, ETSI, IETF, ITU, PacketCable,
Telemanagement Forum and TIA. The Company has led
the development of many of the protocols and standards
related to Voice over IP performance reporting. We
believe that active involvement in standards development
is important - we ensure that our products and technologies
comply with relevant standards however we drive our
technology development in line with expected market
evolution.
WARNING
Telchemy does have a wide range of
IPR and some of our standards contributions may contain
material covered by patent applications. As a matter
of policy, we do disclose this IPR to the relevant
committee and make appropriate declarations with regard
to the inclusion of our IPR in published standards.
We do not grant rights to our IPR in relation to contributions
that we make that are not incorporated into published
standards. In situations where we make declarations
to one committee with regard to a published standard
and that standard is subsquently referenced by other
committees we may not disclose to the other committees
that we have IPR - as we have no way to know if and
when one committee may reference the work of another.
The contributions
listed below DO in many cases incorporate Telchemy
IPR, and hence we advise that you check with us or
with the appropriate standards organization prior
to incorporating any of the ideas described into any
product, technology or service.
Reference
Date:
Alliance
for Telecommunications Industry Solutions
(ATIS)
ATIS
T1A1 Extensions to the E Model to incorporate
the effects of time varying packet loss
and recency (i)
April
2001
Internet
Engineering Task Force (IETF)
IETF
AVT Group RTCP XR MIB (ii)
March
2006
IETF
AVT Group RTP MIB V2
February
2006
IETF
AVT Group RTCP XR High Resolution Metrics
March
2006
IETF
AVT Group RTCP XR Video Metrics
March
2006
IETF
AVT Group RFC3611 (RTCP XR) VoIP metrics
(ii)
November
2003
International
Telecommunications Union (ITU)
ITU-T
IPTV Focus Group IPTV Metrics
January 2007
ITU-T
SG12 Performance Metrics for Fax and Modem
over VoIP connections
October
2005
ITU-T
SG12 Data Modem performance over VoIP
connections
October
2005
ITU-T
SG12 Packet Loss Distribution
January 2003
ITU-T
SG12 Jitter Analysis
January
2003
ITU-T
SG12 Modeling Burst Packet Loss in the
E Model (i)
January
2003
ITU-T
SG12 Degradation Factors
January
2003
ITU-T
SG12 MOS Definitions
January
2003
Telecommunications
Industry Association (TIA)
ANSI
TIA TR30 Proposed Model for IP Impairment
Generation (adopted as ITU G.1050).
(ii)
April
2003
European
Telecommunications Standards Institute
(ETSI)
ETSI
TIPHON Practical Call Quality Metrics
July
2001
ETSI
TIPHON Comparison of TS 101 329-5 Annex
E with E Model (i)
July
2001
ETSI
TIPHON Comparison of TS 101 329-5 Annex
E with PSQM and PAMS (i)
July
2001
ETSI
TS 101 329-5 Quality of Service Measurement
Methodologies (i)
November
2000
ETSI
TIPHON Comparison of 5008 Annex E with
Average Loss Model (i)
September
2000
ETSI
TIPHON Proposal for Passive QoS Monitoring
Methodology for Voice over IP (i)
July
2000
(i) Telchemy DOES have granted patents related to
the technology described in this contribution
(ii) Telchemy DOES NOT claim IPR related to the
technology described in this contribution
Telchemy MAY have IPR related to some aspects of
options or implementations related to other contributions
