| sdp.bandwidth | Bandwidth Information (b) | String | Bandwidth Information |
| sdp.bandwidth.modifier | Bandwidth Modifier | String | Bandwidth Modifier |
| sdp.bandwidth.value | Bandwidth Value | String | Bandwidth Value |
| sdp.connection_info | Connection Information (c) | String | Connection Information |
| sdp.connection_info.address | Connection Address | String | Connection Address |
| sdp.connection_info.address_type | Connection Address Type | String | Connection Address Type |
| sdp.connection_info.network_type | Connection Network Type | String | Connection Network Type |
| sdp.connection_info.num_addr | Connection Number of Addresses | String | Connection Number of Addresses |
| sdp.connection_info.ttl | Connection TTL | String | Connection TTL |
| sdp.email | E-mail Address (e) | String | E-mail Address |
| sdp.encryption_key | Encryption Key (k) | String | Encryption Key |
| sdp.encryption_key.data | Key Data | String | Data |
| sdp.encryption_key.type | Key Type | String | Type |
| sdp.invalid | Invalid line | String | Invalid line |
| sdp.media | Media Description, name and address (m) | String | Media Description, name and address |
| sdp.media.format | Media Format | String | Media Format |
| sdp.media.media | Media Type | String | Media Type |
| sdp.media.port | Media Port | String | Media Port |
| sdp.media.portcount | Media Port Count | String | Media Port Count |
| sdp.media.proto | Media Proto | String | Media Proto |
| sdp.media_attr | Media Attribute (a) | String | Media Attribute |
| sdp.media_attribute.field | Media Attribute Fieldname | String | Media Attribute Fieldname |
| sdp.media_attribute.value | Media Attribute Value | String | Media Attribute Value |
| sdp.media_title | Media Title (i) | String | Media Title |
| sdp.owner | Owner/Creator, Session Id (o) | String | Owner/Creator, Session Id |
| sdp.owner.address | Owner Address | String | Owner Address |
| sdp.owner.address_type | Owner Address Type | String | Owner Address Type |
| sdp.owner.network_type | Owner Network Type | String | Owner Network Type |
| sdp.owner.sessionid | Session ID | String | Session ID |
| sdp.owner.username | Owner Username | String | Owner Username |
| sdp.owner.version | Session Version | String | Session Version |
| sdp.phone | Phone Number (p) | String | Phone Number |
| sdp.repeat_time | Repeat Time (r) | String | Repeat Time |
| sdp.repeat_time.duration | Repeat Duration | String | Repeat Duration |
| sdp.repeat_time.interval | Repeat Interval | String | Repeat Interval |
| sdp.repeat_time.offset | Repeat Offset | String | Repeat Offset |
| sdp.session_attr | Session Attribute (a) | String | Session Attribute |
| sdp.session_attr.field | Session Attribute Fieldname | String | Session Attribute Fieldname |
| sdp.session_attr.value | Session Attribute Value | String | Session Attribute Value |
| sdp.session_info | Session Information (i) | String | Session Information |
| sdp.session_name | Session Name (s) | String | Session Name |
| sdp.time | Time Description, active time (t) | String | Time Description, active time |
| sdp.time.start | Session Start Time | String | Session Start Time |
| sdp.time.stop | Session Stop Time | String | Session Stop Time |
| sdp.timezone | Time Zone Adjustments (z) | String | Time Zone Adjustments |
| sdp.timezone.offset | Timezone Offset | String | Timezone Offset |
| sdp.timezone.time | Timezone Time | String | Timezone Time |
| sdp.unknown | Unknown | String | Unknown |
| sdp.uri | URI of Description (u) | String | URI of Description |
| sdp.version | Session Description Protocol Version (v) | String | Session Description Protocol Version |