diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 08a2123e6aa..fa65c304907 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -3694,6 +3694,18 @@
     "messageformat": "Remove this person from the call",
     "description": "Button in the in-call info popup for call link calls showing all participants. The action is to remove the participant from the call."
   },
+  "icu:CallingAdhocCallInfo__RemoveClientDialogBody": {
+    "messageformat": "Remove {name} from the call?",
+    "description": "Info text in confirmation dialog when removing or blocking someone from an ongoing call for a call link."
+  },
+  "icu:CallingAdhocCallInfo__RemoveClientDialogButton--remove": {
+    "messageformat": "Remove",
+    "description": "Button in confirmation dialog when removing or blocking someone from an ongoing call for a call link."
+  },
+  "icu:CallingAdhocCallInfo__RemoveClientDialogButton--block": {
+    "messageformat": "Block from call",
+    "description": "Button in confirmation dialog when removing or blocking someone from an ongoing call for a call link."
+  },
   "icu:CallingAdhocCallInfo__UnknownContactLabel": {
     "messageformat": "{count, plural, one {# person} other {# people}}",
     "description": "Label showing number of unknown contacts in the in-call participant info popup for call links."
diff --git a/stylesheets/components/CallingAdhocCallInfo.scss b/stylesheets/components/CallingAdhocCallInfo.scss
index e7f7881e6a1..8b62a33cb05 100644
--- a/stylesheets/components/CallingAdhocCallInfo.scss
+++ b/stylesheets/components/CallingAdhocCallInfo.scss
@@ -137,3 +137,7 @@
   // Should match background of .module-calling-participants-list__contact:hover
   outline-color: $color-gray-62;
 }
+
+.CallingAdhocCallInfo__RemoveClientDialog {
+  width: 440px;
+}
diff --git a/ts/components/CallManager.stories.tsx b/ts/components/CallManager.stories.tsx
index 4414bbe4872..bad05373596 100644
--- a/ts/components/CallManager.stories.tsx
+++ b/ts/components/CallManager.stories.tsx
@@ -100,6 +100,7 @@ const createProps = (storyProps: Partial<PropsType> = {}): PropsType => ({
   openSystemPreferencesAction: action('open-system-preferences-action'),
   playRingtone: action('play-ringtone'),
   removeClient: action('remove-client'),
+  blockClient: action('block-client'),
   renderDeviceSelection: () => <div />,
   renderEmojiPicker: () => <>EmojiPicker</>,
   renderReactionPicker: () => <div />,
diff --git a/ts/components/CallManager.tsx b/ts/components/CallManager.tsx
index f2f3fc17d2e..f156d01734b 100644
--- a/ts/components/CallManager.tsx
+++ b/ts/components/CallManager.tsx
@@ -117,6 +117,7 @@ export type PropsType = {
   openSystemPreferencesAction: () => unknown;
   playRingtone: () => unknown;
   removeClient: (payload: RemoveClientType) => void;
+  blockClient: (payload: RemoveClientType) => void;
   sendGroupCallRaiseHand: (payload: SendGroupCallRaiseHandType) => void;
   sendGroupCallReaction: (payload: SendGroupCallReactionType) => void;
   setGroupCallVideoRequest: (_: SetGroupCallVideoRequestType) => void;
@@ -163,6 +164,7 @@ function ActiveCallManager({
   activeCall,
   approveUser,
   availableCameras,
+  blockClient,
   callLink,
   cancelCall,
   changeCallView,
@@ -397,6 +399,7 @@ function ActiveCallManager({
               onCopyCallLink={onCopyCallLink}
               onShareCallLinkViaSignal={handleShareCallLinkViaSignal}
               removeClient={removeClient}
+              blockClient={blockClient}
               showContactModal={showContactModal}
             />
           ) : (
@@ -494,6 +497,7 @@ function ActiveCallManager({
             onCopyCallLink={onCopyCallLink}
             onShareCallLinkViaSignal={handleShareCallLinkViaSignal}
             removeClient={removeClient}
+            blockClient={blockClient}
             showContactModal={showContactModal}
           />
         ) : (
@@ -515,6 +519,7 @@ export function CallManager({
   activeCall,
   approveUser,
   availableCameras,
+  blockClient,
   bounceAppIconStart,
   bounceAppIconStop,
   callLink,
@@ -613,6 +618,7 @@ export function CallManager({
           activeCall={activeCall}
           availableCameras={availableCameras}
           approveUser={approveUser}
+          blockClient={blockClient}
           callLink={callLink}
           cancelCall={cancelCall}
           changeCallView={changeCallView}
diff --git a/ts/components/CallingAdhocCallInfo.stories.tsx b/ts/components/CallingAdhocCallInfo.stories.tsx
index 9efd3fc127c..6585fc7ee04 100644
--- a/ts/components/CallingAdhocCallInfo.stories.tsx
+++ b/ts/components/CallingAdhocCallInfo.stories.tsx
@@ -68,6 +68,7 @@ const createProps = (overrideProps: Partial<PropsType> = {}): PropsType => ({
   onCopyCallLink: action('on-copy-call-link'),
   onShareCallLinkViaSignal: action('on-share-call-link-via-signal'),
   removeClient: overrideProps.removeClient || action('remove-client'),
+  blockClient: overrideProps.blockClient || action('block-client'),
   showContactModal: action('show-contact-modal'),
 });
 
@@ -140,3 +141,35 @@ export function Overflow(): JSX.Element {
   });
   return <CallingAdhocCallInfo {...props} />;
 }
+
+export function AsAdmin(): JSX.Element {
+  const props = createProps({
+    participants: [
+      createParticipant({
+        title: 'Son Goku',
+      }),
+      createParticipant({
+        hasRemoteAudio: true,
+        hasRemoteVideo: true,
+        presenting: true,
+        name: 'Rage Trunks',
+        title: 'Rage Trunks',
+      }),
+      createParticipant({
+        hasRemoteAudio: true,
+        title: 'Prince Vegeta',
+      }),
+      createParticipant({
+        hasRemoteAudio: true,
+        hasRemoteVideo: true,
+        name: 'Goku',
+        title: 'Goku',
+      }),
+      createParticipant({
+        title: 'Someone With A Really Long Name',
+      }),
+    ],
+    isCallLinkAdmin: true,
+  });
+  return <CallingAdhocCallInfo {...props} />;
+}
diff --git a/ts/components/CallingAdhocCallInfo.tsx b/ts/components/CallingAdhocCallInfo.tsx
index 9aba9221c9a..0b76725c496 100644
--- a/ts/components/CallingAdhocCallInfo.tsx
+++ b/ts/components/CallingAdhocCallInfo.tsx
@@ -20,6 +20,7 @@ import { AVATAR_COLOR_COUNT, AvatarColors } from '../types/Colors';
 import { Button } from './Button';
 import { Modal } from './Modal';
 import { Theme } from '../util/theme';
+import { ConfirmationDialog } from './ConfirmationDialog';
 
 const MAX_UNKNOWN_AVATARS_COUNT = 3;
 
@@ -40,7 +41,8 @@ export type PropsType = {
   readonly onClose: () => void;
   readonly onCopyCallLink: () => void;
   readonly onShareCallLinkViaSignal: () => void;
-  readonly removeClient: ((payload: RemoveClientType) => void) | null;
+  readonly removeClient: (payload: RemoveClientType) => void;
+  readonly blockClient: (payload: RemoveClientType) => void;
   readonly showContactModal: (
     contactId: string,
     conversationId?: string
@@ -145,6 +147,7 @@ export function CallingAdhocCallInfo({
   isCallLinkAdmin,
   ourServiceId,
   participants,
+  blockClient,
   onClose,
   onCopyCallLink,
   onShareCallLinkViaSignal,
@@ -153,6 +156,11 @@ export function CallingAdhocCallInfo({
 }: PropsType): JSX.Element | null {
   const [isUnknownContactDialogVisible, setIsUnknownContactDialogVisible] =
     React.useState(false);
+  const [removeClientDialogState, setRemoveClientDialogState] = React.useState<{
+    demuxId: number;
+    name: string;
+  } | null>(null);
+
   const hideUnknownContactDialog = React.useCallback(
     () => setIsUnknownContactDialogVisible(false),
     [setIsUnknownContactDialogVisible]
@@ -256,7 +264,6 @@ export function CallingAdhocCallInfo({
           )}
         />
         {isCallLinkAdmin &&
-        removeClient &&
         participant.demuxId &&
         !(ourServiceId && participant.serviceId === ourServiceId) ? (
           <button
@@ -273,7 +280,10 @@ export function CallingAdhocCallInfo({
 
               event.stopPropagation();
               event.preventDefault();
-              removeClient({ demuxId: participant.demuxId });
+              setRemoveClientDialogState({
+                demuxId: participant.demuxId,
+                name: participant.title,
+              });
             }}
             type="button"
           />
@@ -285,13 +295,45 @@ export function CallingAdhocCallInfo({
       isCallLinkAdmin,
       onClose,
       ourServiceId,
-      removeClient,
+      setRemoveClientDialogState,
       showContactModal,
     ]
   );
 
   return (
     <>
+      {removeClientDialogState != null ? (
+        <ConfirmationDialog
+          dialogName="CallingAdhocCallInfo.removeClientDialog"
+          moduleClassName="CallingAdhocCallInfo__RemoveClientDialog"
+          actions={[
+            {
+              action: () =>
+                blockClient({ demuxId: removeClientDialogState.demuxId }),
+              style: 'negative',
+              text: i18n(
+                'icu:CallingAdhocCallInfo__RemoveClientDialogButton--block'
+              ),
+            },
+            {
+              action: () =>
+                removeClient({ demuxId: removeClientDialogState.demuxId }),
+              style: 'negative',
+              text: i18n(
+                'icu:CallingAdhocCallInfo__RemoveClientDialogButton--remove'
+              ),
+            },
+          ]}
+          cancelText={i18n('icu:cancel')}
+          i18n={i18n}
+          theme={Theme.Dark}
+          onClose={() => setRemoveClientDialogState(null)}
+        >
+          {i18n('icu:CallingAdhocCallInfo__RemoveClientDialogBody', {
+            name: removeClientDialogState.name,
+          })}
+        </ConfirmationDialog>
+      ) : null}
       {isUnknownContactDialogVisible ? (
         <Modal
           modalName="CallingAdhocCallInfo.UnknownContactInfo"
diff --git a/ts/services/calling.ts b/ts/services/calling.ts
index c40f05727f6..bc54490e994 100644
--- a/ts/services/calling.ts
+++ b/ts/services/calling.ts
@@ -1592,6 +1592,15 @@ export class CallingClass {
     groupCall.removeClient(demuxId);
   }
 
+  public blockClient(conversationId: string, demuxId: number): void {
+    const groupCall = this.getGroupCall(conversationId);
+    if (!groupCall) {
+      throw new Error('Could not find matching call');
+    }
+
+    groupCall.blockClient(demuxId);
+  }
+
   // See the comment in types/Calling.ts to explain why we have to do this conversion.
   private convertRingRtcConnectionState(
     connectionState: ConnectionState
diff --git a/ts/state/ducks/calling.ts b/ts/state/ducks/calling.ts
index f58b9edd154..677c6cc38bb 100644
--- a/ts/state/ducks/calling.ts
+++ b/ts/state/ducks/calling.ts
@@ -574,6 +574,7 @@ const doGroupCallPeek = ({
 
 const ACCEPT_CALL_PENDING = 'calling/ACCEPT_CALL_PENDING';
 const APPROVE_USER = 'calling/APPROVE_USER';
+const BLOCK_CLIENT = 'calling/BLOCK_CLIENT';
 const CANCEL_CALL = 'calling/CANCEL_CALL';
 const CANCEL_INCOMING_GROUP_CALL_RING =
   'calling/CANCEL_INCOMING_GROUP_CALL_RING';
@@ -801,6 +802,10 @@ type RemoveClientActionType = ReadonlyDeep<{
   type: 'calling/REMOVE_CLIENT';
 }>;
 
+type BlockClientActionType = ReadonlyDeep<{
+  type: 'calling/BLOCK_CLIENT';
+}>;
+
 type ReturnToActiveCallActionType = ReadonlyDeep<{
   type: 'calling/RETURN_TO_ACTIVE_CALL';
 }>;
@@ -1002,7 +1007,7 @@ function removeClient(
     const activeCall = getActiveCall(getState().calling);
     if (!activeCall || !isGroupOrAdhocCallMode(activeCall.callMode)) {
       log.warn(
-        'approveUser: Trying to approve pending user without active group or adhoc call'
+        'removeClient: Trying to remove client without active group or adhoc call'
       );
       return;
     }
@@ -1012,6 +1017,23 @@ function removeClient(
   };
 }
 
+function blockClient(
+  payload: RemoveClientType
+): ThunkAction<void, RootStateType, unknown, BlockClientActionType> {
+  return (dispatch, getState) => {
+    const activeCall = getActiveCall(getState().calling);
+    if (!activeCall || !isGroupOrAdhocCallMode(activeCall.callMode)) {
+      log.warn(
+        'blockClient: Trying to block client without active group or adhoc call'
+      );
+      return;
+    }
+
+    calling.blockClient(activeCall.conversationId, payload.demuxId);
+    dispatch({ type: BLOCK_CLIENT });
+  };
+}
+
 function callStateChange(
   payload: CallStateChangeType
 ): ThunkAction<
@@ -2274,6 +2296,7 @@ function switchFromPresentationView(): SwitchFromPresentationViewActionType {
 export const actions = {
   acceptCall,
   approveUser,
+  blockClient,
   callStateChange,
   cancelCall,
   cancelIncomingGroupCallRing,
diff --git a/ts/state/smart/CallManager.tsx b/ts/state/smart/CallManager.tsx
index 46cfdaa24cf..3897486ea41 100644
--- a/ts/state/smart/CallManager.tsx
+++ b/ts/state/smart/CallManager.tsx
@@ -437,6 +437,7 @@ export const SmartCallManager = memo(function SmartCallManager() {
     declineCall,
     openSystemPreferencesAction,
     removeClient,
+    blockClient,
     sendGroupCallRaiseHand,
     sendGroupCallReaction,
     setGroupCallVideoRequest,
@@ -464,6 +465,7 @@ export const SmartCallManager = memo(function SmartCallManager() {
       activeCall={activeCall}
       approveUser={approveUser}
       availableCameras={availableCameras}
+      blockClient={blockClient}
       bounceAppIconStart={bounceAppIconStart}
       bounceAppIconStop={bounceAppIconStop}
       callLink={callLink}