| `TALK_SIPBRIDGE_RANDOM` | string | Random string that need to be concatenated with room token to generate the checksum using the `sip_bridge_shared_secret`. |
| `TALK_SIPBRIDGE_CHECKSUM` | string | The checksum generated with `TALK_SIPBRIDGE_RANDOM`. |
| `TALK_SIPBRIDGE_RANDOM` | string | Random string that needs to be concatenated with room token to generate the checksum using the `sip_bridge_shared_secret`. |
| `TALK_SIPBRIDGE_CHECKSUM` | string | The checksum generated with `TALK_SIPBRIDGE_RANDOM`. |
| `allowed_groups` | string[] | `[]`| 🖌️ | List of group ids that are allowed to use Talk |
| `sip_bridge_groups` | string[] | `[]`| 🖌️ | List of group ids that are allowed to enable SIP dial-in in a conversation |
| `start_conversations` | string[] | `[]`| 🖌️ | List of group ids that are allowed to create conversations |
| `hosted-signaling-server-account` | array | `{}`| 🖌️ | Account information of the hosted signaling server |
| `stun_servers` | array[] | `[]`| 🖌💻️ | List of STUN servers, should be configured via the web interface or the OCC commands |
| `turn_servers` | array[] | `[]`| 🖌️💻 | List of TURN servers, should be configured via the web interface or the OCC commands |
| `signaling_servers` | array[] | `[]`| 🖌️💻 | List of signaling servers, should be configured via the web interface or the OCC commands |
| `signaling_mode` | string<br>`internal` or `external` or `conversation_cluster` | `internal`| | `internal` when no HPB is configured, `external` when configured, `conversation_cluster` is an experimental flag that is deprecated |
| `sip_bridge_dialin_info` | string | | 🖌️ | Additional information added in the SIP dial-in invitation mail and sidebar |
| `sip_bridge_shared_secret` | string | | 🖌️ | Shared secret allowing the SIP bridge to authenticate on the Nextcloud server |
| `signaling_ticket_secret` | string | | | Secret used to secure the signaling tickets for guests (255 character random string) |
| `signaling_token_alg` | string<br>`ES256`, `ES384`, `RS256`, `RS384`, `RS512` or `EdDSA` | `ES256`| | Algorithm for the signaling tickets |
| `signaling_token_privkey_*` | string | * | | Private key for the signaling ticket creation by the server |
| `signaling_token_pubkey_*` | string | * | | Public key for the signaling ticket creation by the server |
| `hosted-signaling-server-nonce` | string | | | Temporary nonce while configuring the hosted signaling server |
| `hosted-signaling-server-account-id` | string | | | Account identifier of the hosted signaling server |
| `matterbridge_binary` | string | | | Path to the matterbridge binary file |
| `bridge_bot_password` | string | | | Automatically generated password of the matterbridge bot user profile |
| `start_calls` | int | `0`| 🖌️ | Who can start a call, see [constants list](constants.md#start-call) |
| `max-gif-size` | int | `3145728`| | Maximum file size for clients to render gifs previews with animation |
| `session-ping-limit` | int | `200`| | Number of sessions the HPB can ping in a single request |
| `token_entropy` | int | `8`| | Length of conversation tokens, can be increased to make tokens harder to guess but reduces readability and dial-in comfort |
| `default_group_notification` | int | `2`| 🖌️ | Default notification level for group conversations [constants list](constants.md#participant-notification-levels) |
| `default_permissions` | int | `246`| | Default permissions for non-moderators (see [constants list](constants.md#attendee-permissions) for bit flags) |
| `grid_videos_limit` | int | `19`| | Maximum number of videos to show (additional to the own video) |
| `grid_videos_limit_enforced` | string<br>`yes` or `no` | `no`| | Whether the number of grid videos should be enforced |
| `changelog` | string<br>`yes` or `no` | `yes`| | Whether the changelog conversation is updated with new features on major releases |
| `has_reference_id` | string<br>`yes` or `no` | `no`| | Indicator whether the clients can use the reference value to identify their message, will be automatically set to `yes` when the repair steps are executed |
| `hide_signaling_warning` | string<br>`yes` or `no` | `no`| 🖌️ | Flag that allows to suppress the warning that an HPB should be configured |
| `signaling_dev` | string<br>`yes` or `no` | `no`| | Developer flag that allows to suppress various requirements like a Redis server when using the HPB |
| `breakout_rooms` | string<br>`yes` or `no` | `yes`| | Whether or not breakout rooms are allowed (Will only prevent creating new breakout rooms. Existing conversations are not modified.) |
| `federation_enabled` | string<br>`yes` or `no` | `no`| | 🏗️ *Work in progress:* Whether or not federation with this instance is allowed |
| `conversations_files` | string<br>`1` or `0` | `1`| 🖌️ | Whether the files app integration is enabled allowing to start conversations in the right sidebar |
| `conversations_files_public_shares` | string<br>`1` or `0` | `1`| 🖌️ | Whether the public share integration is enabled allowing to start conversations in the right sidebar on the public share page (Requires `conversations_files` also to be enabled) |
| `enable_matterbridge` | string<br>`1` or `0` | `0`| 🖌️ | Whether the matterbridge integration is enabled and can be configured |
| `allowed_groups` | string[] | `[]` | 🖌️ | List of group ids that are allowed to use Talk |
| `sip_bridge_groups` | string[] | `[]` | 🖌️ | List of group ids that are allowed to enable SIP dial-in in a conversation |
| `start_conversations` | string[] | `[]` | 🖌️ | List of group ids that are allowed to create conversations |
| `hosted-signaling-server-account` | array | `{}` | 🖌️ | Account information of the hosted signaling server |
| `stun_servers` | array[] | `[]` | 🖌💻️ | List of STUN servers, should be configured via the web interface or the OCC commands |
| `turn_servers` | array[] | `[]` | 🖌️💻 | List of TURN servers, should be configured via the web interface or the OCC commands |
| `signaling_servers` | array[] | `[]` | 🖌️💻 | List of signaling servers, should be configured via the web interface or the OCC commands |
| `signaling_mode` | string<br>`internal` or `external` or `conversation_cluster` | `internal` | | `internal` when no HPB is configured, `external` when configured, `conversation_cluster` is an experimental flag that is deprecated |
| `sip_bridge_dialin_info` | string | | 🖌️ | Additional information added in the SIP dial-in invitation mail and sidebar |
| `sip_bridge_shared_secret` | string | | 🖌️ | Shared secret allowing the SIP bridge to authenticate on the Nextcloud server |
| `signaling_ticket_secret` | string | | | Secret used to secure the signaling tickets for guests (255 character random string) |
| `signaling_token_alg` | string<br>`ES256`, `ES384`, `RS256`, `RS384`, `RS512` or `EdDSA` | `ES256` | | Algorithm for the signaling tickets |
| `signaling_token_privkey_*` | string | * | | Private key for the signaling ticket creation by the server |
| `signaling_token_pubkey_*` | string | * | | Public key for the signaling ticket creation by the server |
| `hosted-signaling-server-nonce` | string | | | Temporary nonce while configuring the hosted signaling server |
| `hosted-signaling-server-account-id` | string | | | Account identifier of the hosted signaling server |
| `matterbridge_binary` | string | | | Path to the matterbridge binary file |
| `bridge_bot_password` | string | | | Automatically generated password of the matterbridge bot user profile |
| `start_calls` | int | `0` | 🖌️ | Who can start a call, see [constants list](constants.md#start-call) |
| `max-gif-size` | int | `3145728` | | Maximum file size for clients to render gifs previews with animation |
| `session-ping-limit` | int | `200` | | Number of sessions the HPB can ping in a single request |
| `token_entropy` | int | `8` | | Length of conversation tokens, can be increased to make tokens harder to guess but reduces readability and dial-in comfort |
| `default_group_notification` | int | `2` | 🖌️ | Default notification level for group conversations [constants list](constants.md#participant-notification-levels) |
| `default_permissions` | int | `246` | | Default permissions for non-moderators (see [constants list](constants.md#attendee-permissions) for bit flags) |
| `grid_videos_limit` | int | `19` | | Maximum number of videos to show (additional to the own video) |
| `grid_videos_limit_enforced` | string<br>`yes` or `no` | `no` | | Whether the number of grid videos should be enforced |
| `changelog` | string<br>`yes` or `no` | `yes` | | Whether the changelog conversation is updated with new features on major releases |
| `has_reference_id` | string<br>`yes` or `no` | `no` | | Indicator whether the clients can use the reference value to identify their message, will be automatically set to `yes` when the repair steps are executed |
| `hide_signaling_warning` | string<br>`yes` or `no` | `no` | 🖌️ | Flag that allows to suppress the warning that an HPB should be configured |
| `signaling_dev` | string<br>`yes` or `no` | `no` | | Developer flag that allows to suppress various requirements like a Redis server when using the HPB |
| `breakout_rooms` | string<br>`yes` or `no` | `yes` | | Whether or not breakout rooms are allowed (Will only prevent creating new breakout rooms. Existing conversations are not modified.) |
| `federation_enabled` | string<br>`yes` or `no` | `no` | | 🏗️ *Work in progress:* Whether or not federation with this instance is allowed |
| `conversations_files` | string<br>`1` or `0` | `1` | 🖌️ | Whether the files app integration is enabled allowing to start conversations in the right sidebar |
| `conversations_files_public_shares` | string<br>`1` or `0` | `1` | 🖌️ | Whether the public share integration is enabled allowing to start conversations in the right sidebar on the public share page (Requires `conversations_files` also to be enabled) |
| `enable_matterbridge` | string<br>`1` or `0` | `0` | 🖌️ | Whether the matterbridge integration is enabled and can be configured |