| SIP: session initiation protocol J Rosenberg, H Schulzrinne, G Camarillo, A Johnston, J Peterson, ... | 9797 | 2002 |
| SIP: understanding the session initiation protocol AB Johnston Artech House, 2015 | 548 | 2015 |
| RFC3261: SIP: session initiation protocol J Rosenberg, H Schulzrinne, G Camarillo, A Johnston, J Peterson, ... RFC Editor, 2002 | 431 | 2002 |
| Bridging user agent and a proxy server for supporting network services AB Johnston US Patent 7,469,299, 2008 | 359 | 2008 |
| Internet communications using SIP: Delivering VoIP and multimedia services with Session Initiation Protocol H Sinnreich, AB Johnston John Wiley & Sons, 2012 | 337 | 2012 |
| Method and system for providing voice over IP managed services utilizing a centralized data store WR Alt, E Borgstrom, KE Bae, AB Johnston US Patent 8,571,011, 2013 | 302 | 2013 |
| SIP: Session initiation protocol (RFC 3261) J Rosenberg, H Schulzrinne, G Camarillo, A Johnston, J Peterson, ... Internet Engineering Task Force, 2002 | 260 | 2002 |
| Fixed-mobile communications with mid-session mode switching H Sinnreich, AB Johnston US Patent 7,602,748, 2009 | 201 | 2009 |
| ZRTP: Media path key agreement for unicast secure RTP P Zimmermann, A Johnston, J Callas | 200 | 2011 |
| RFC 3261 J Rosenberg, H Schulzrinne, G Camarillo, A Johnston, J Peterson, ... SIP: Session initiation protocol 6, 2002 | 192 | 2002 |
| Session Initiation Protocol (SIP) Call Control-Conferencing for User Agents A Johnston, O Levin | 190 | 2006 |
| WebRTC: APIs and RTCWEB protocols of the HTML5 real-time web AB Johnston, DC Burnett Digital Codex LLC, 2012 | 176 | 2012 |
| Session initiation protocol (SIP) basic call flow examples A Johnston, S Donovan, R Sparks, C Cunningham, K Summers | 166* | 2003 |
| Method and system for providing interdomain traversal in support of packetized voice transmissions KE Bae, WR Alt, AB Johnston, JA Robertson US Patent 7,706,401, 2010 | 142 | 2010 |
| RFC 3261: SIP: Session initiation protocol J Rosenberg, H Schulzrinne, G Camarillo, A Johnston, J Peterson, ... June 2002, 2003 | 118 | 2003 |
| Taking on webRTC in an enterprise A Johnston, J Yoakum, K Singh IEEE Communications Magazine 51 (4), 48-54, 2013 | 96 | 2013 |
| Session initiation protocol (SIP) torture test messages R Sparks, A Hawrylyshen, A Johnston, J Rosenberg, H Schulzrinne | 89 | 2006 |
| Providing content delivery during a call hold condition AB Johnston US Patent 7,266,591, 2007 | 57* | 2007 |
| SIP: Session initiation protocol E Schooler, G Camarillo, M Handley, J Peterson, J Rosenberg, ... | 57 | 2002 |
| Distributed application of enterprise policies to Web Real-Time Communications (WebRTC) interactive sessions, and related methods, systems, and computer-readable media JH Yoakum, AB Johnston US Patent 9,363,133, 2016 | 55 | 2016 |
