Dynamic virtual private networks. - Andrew R. McGee; S. Rao Vasireddy; K. Jeffrey Johnson; Uma Chandrashekhar; Steven H. Richman; Mohamed El-Sayed 007 (Bell Labs Tech. J., 2001)

A view of telecommunications network evolution. - Mohamed El-Sayed 007; Jeffrey M. Jaffe (IEEE Commun. Mag., 2002)

SIP in 3G wireless networks: Service models, architecture, and network design. - Carlos Urrutia-Valdés; Amit Mukhopadhyay; Mohamed El-Sayed 007; Zulfiquar Sayeed; Dong Sun 002 (Bell Labs Tech. J., 2004)

Presence and availability with IMS: Applications architecture, traffic analysis, and capacity impacts. - Carlos Urrutia-Valdés; Amit Mukhopadhyay; Mohamed El-Sayed 007 (Bell Labs Tech. J., 2006)

IMS service enhancement layer: A quantitative value proposition. - Ying Hu; Amit Mukhopadhyay; Zulfiquar Sayeed; Carlos Urrutia-Valdés; Mohamed El-Sayed 007 (Bell Labs Tech. J., 2007)

Mobile data explosion: Monetizing the opportunity through dynamic policies and Qos pipes. - Mohamed El-Sayed 007; Amit Mukhopadhyay; Carlos Urrutia-Valdés; Z. John Zhao (Bell Labs Tech. J., 2011)