The IETF has a limited number of liaison relationships with other organizations. Liaisons are appointed by the IAB when the IAB feels that conditions warrant appointing a specific person to such a task.
Note that such appointments are rare as the best way for organizations to work with the IETF is to do so within the working groups. The primary contact on liaison negotiation is the IAB.
The list of liaisons appears below:
ITU-T SG and WP Liaisons
The agreement for ITU-IETF interworking (RFC 2436) does not require designated representatives to conduct regular business; most interactions occur directly at the WG (or WP) level). Representatives are designated for specific ITU-T-related meetings when that seems appropriate, but only for one meeting or sequence of meetings.
Current and recent representatives are:
SG2 WP1/2 meeting, Berlin, October 2000: Patrik Faltstrom and Richard Shockey
CN1#18 Dean Willis
ITU IP/Optical Workshop July 9-11 in Chitose, Japan: Bert Wijnen
SG 13 Joint Rapporteurs' Group meeting for Next Generation Networking,
Q14/15 Interim Meeting, February 16-20, 2004, Chicago, USA: Adrian Farrel
SG 15 Meeting Geneva, 19-30 April 2004: Adrian Farrel
Workshop on "End-to-End QoE/QoS," Geneva, June 14-16 2006: Dave Oran
Global Standards Collaboration Meeting Liaison
GSC-8, Ottawa Canada, January 2003: Scott Bradner