Service creation for next-generation networks. - Kristin F. Kocan; Warren A. Montgomery; Steven A. Siegel; Robert J. Thornberry Jr.; Guy J. Zenner (Bell Labs Tech. J., 2002)

Emerging uses of SIP in service provider networks. - Guy J. Zenner; Mark Hedley Jones; Amit A. Patel (Bell Labs Tech. J., 2003)

The role of SIP in the migration of service provider networks to VoIP. - Alan E. Frey; Guy J. Zenner (Bell Labs Tech. J., 2004)

Session Initiation Protocol. - Guy J. Zenner (Bell Labs Tech. J., 2004)

Revenue models for application enablement: The project neuron case study. - Ram Gollakota; Abdol Saleh; Anne Y. Lee; Veena B. Mendiratta; Daisy Su; Guy J. Zenner (Bell Labs Tech. J., 2011)