| sdp_attribute_s | Session or media attribute |
| sdp_bandwidth_s | Session or media bandwidth |
| sdp_connection_s | SDP connection - host or group address |
| sdp_key_s | Session key |
| sdp_list_s | Text list |
| sdp_media_s | Media announcement |
| sdp_origin_s | Session description identification |
| sdp_repeat_s | Description of repetition |
| sdp_rtpmap_s | Mapping from RTP payload to codec |
| sdp_session_s | Session description |
| sdp_time_s | Active time description |
| sdp_zone_s | Timezone |
