- RFC 792 - Internet Control Message Protocol (ICMP)
- RFC 1122 - Requirements for Internet Hosts - Communication Layers
- RFC 1149 - IP over Avian Carriers
- RFC 2549 - IP over Avian Carriers with Quality of Service
- RFC 6214 - Adaptation of RFC 1149 for IPv6
- RFC 1163 - Border Gateway Protocol (BGP)
- RFC 1164 - Application of BGP on the Internet
- RFC 1997 - BGP Communities Attribute
- RFC 2326 - Real Time Streaming Protocol (RTSP)
- RFC 2439 - BGP Route Flap Damping
- RFC 2495 - Definitions of Managed Objects for the DS1, E1, DS2, and E2 Interface Types
- RFC 2549 - IP over Avian Carrier with QoS
- RFC 2560 - Online Certificate Status Protocol (OCSP)
- RFC 2782 - DNS RR for specifying the location of services (DNS SRV)
- RFC 2833 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
- RFC 4733 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
- RFC 4734 - Definition of Events for Modem, Fax, and Text Telephony Signals
- RFC 5244 - Definition of Events for Channel-Oriented Telephony Signalling
- RFC 3261 - Session Initiation Protocol (SIP)
- RFC 3680 - A Session Initiation Protocol (SIP) Event Package for Registrations
- RFC 4579 - Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents
- RFC 6665 - SIP-Specific Event Notification
- RFC 3357 - One-way Loss Pattern Simple Metrics
- RFC 3550 - Real-time Transport Protocol (RTP)
- RFC 3605 - Real Time Control Protocol (RTCP) in Session Description Protocol (SDP)
- RFC 3711 - Secure Real-Time Transport Protocol (SRTP)
- RFC 3830 - MIKEY: Multimedia Internet KEYing
- RFC 4360 - BGP Extended Communities Attribute
- RFC 4566 - Session Description Protocol (SDP)
- RFC 4568 - Session Description Protocol (SDP) Security Descriptions for Media Streams
- RFC 4733 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
- RFC 4734 - Definition of Events for Modem, Fax, and Text Telephony Signals