diff --git a/src/components/LeftSidebar/InvitationHandler.vue b/src/components/LeftSidebar/InvitationHandler.vue
new file mode 100644
index 00000000000..812bfdc56c3
--- /dev/null
+++ b/src/components/LeftSidebar/InvitationHandler.vue
@@ -0,0 +1,211 @@
+<!--
+  - @copyright Copyright (c) 2024 Maksim Sukharev <antreesy.web@gmail.com>
+  -
+  - @author Maksim Sukharev <antreesy.web@gmail.com>
+  -
+  - @license AGPL-3.0-or-later
+  -
+  - This program is free software: you can redistribute it and/or modify
+  - it under the terms of the GNU Affero General Public License as
+  - published by the Free Software Foundation, either version 3 of the
+  - License, or (at your option) any later version.
+  -
+  - This program is distributed in the hope that it will be useful,
+  - but WITHOUT ANY WARRANTY; without even the implied warranty of
+  - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+  - GNU Affero General Public License for more details.
+  -
+  - You should have received a copy of the GNU Affero General Public License
+  - along with this program. If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<template>
+	<NcModal v-if="modal"
+		:container="container"
+		@close="closeModal">
+		<div class="inbox">
+			<h2 class="inbox__heading">
+				{{ t('spreed', 'Pending invitations') }}
+			</h2>
+			<p class="inbox__disclaimer">
+				{{ t('spreed', 'Join conversations from remote Nextcloud servers') }}
+			</p>
+			<ul class="inbox__list">
+				<li v-for="item of invitations"
+					:key="`invitation_${item.id}`"
+					class="inbox__item">
+					<ConversationIcon :item="item" />
+					<div class="inbox__item-desc">
+						<span class="inbox__item-desc__name">
+							{{ item.roomName }}
+						</span>
+						<span class="inbox__item-desc__subname">
+							{{ t('spreed', 'From {user} at {remoteServer}', {
+								user: item.inviterDisplayName,
+								remoteServer: item.remoteServerUrl,
+							}) }}
+						</span>
+					</div>
+					<NcButton type="tertiary"
+						aria-label="t('spreed', 'Decline invitation')"
+						title="t('spreed', 'Decline invitation')"
+						:disabled="item.loading"
+						@click="rejectShare(item.id)">
+						<template #icon>
+							<NcLoadingIcon v-if="item.loading" :size="20" />
+							<CancelIcon v-else :size="20" />
+						</template>
+					</NcButton>
+					<NcButton type="primary"
+						aria-label="t('spreed', 'Accept invitation')"
+						:disabled="item.loading"
+						@click="acceptShare(item.id)">
+						<template #icon>
+							<NcLoadingIcon v-if="item.loading" :size="20" />
+							<CheckIcon v-else :size="20" />
+						</template>
+						{{ t('spreed', 'Accept') }}
+					</NcButton>
+				</li>
+			</ul>
+		</div>
+	</NcModal>
+</template>
+
+<script>
+import CancelIcon from 'vue-material-design-icons/Cancel.vue'
+import CheckIcon from 'vue-material-design-icons/Check.vue'
+
+import NcButton from '@nextcloud/vue/dist/Components/NcButton.js'
+import NcLoadingIcon from '@nextcloud/vue/dist/Components/NcLoadingIcon.js'
+import NcModal from '@nextcloud/vue/dist/Components/NcModal.js'
+
+import ConversationIcon from '../ConversationIcon.vue'
+
+import { CONVERSATION } from '../../constants.js'
+import { useFederationStore } from '../../stores/federation.js'
+
+export default {
+	name: 'InvitationHandler',
+
+	components: {
+		ConversationIcon,
+		NcButton,
+		NcLoadingIcon,
+		NcModal,
+		// Icons
+		CancelIcon,
+		CheckIcon,
+	},
+
+	setup() {
+		return {
+			federationStore: useFederationStore(),
+		}
+	},
+
+	data() {
+		return {
+			modal: false,
+		}
+	},
+
+	computed: {
+		container() {
+			return this.$store.getters.getMainContainerSelector()
+		},
+
+		invitations() {
+			return Object.values(this.federationStore.pendingShares)
+				.map(item => ({
+					...item,
+					type: CONVERSATION.TYPE.GROUP,
+				}))
+		},
+	},
+
+	expose: ['showModal'],
+
+	methods: {
+		showModal() {
+			this.modal = true
+		},
+
+		closeModal() {
+			this.modal = false
+		},
+
+		async acceptShare(id) {
+			const conversation = await this.federationStore.acceptShare(id)
+			if (conversation?.token) {
+				this.$store.dispatch('addConversation', conversation)
+				this.$router.push({ name: 'conversation', params: { token: conversation.token } })
+				this.closeModal()
+			}
+		},
+
+		async rejectShare(id) {
+			await this.federationStore.rejectShare(id)
+			if (this.invitations.length === 0) {
+				this.closeModal()
+			}
+		},
+	},
+}
+</script>
+
+<style lang="scss" scoped>
+.inbox {
+	display: flex;
+	flex-direction: column;
+	width: 100%;
+	height: 100%;
+	max-height: 700px;
+	padding: 20px;
+
+	&__heading {
+		margin-bottom: 4px;
+	}
+
+	&__disclaimer {
+		margin-bottom: 12px;
+		color: var(--color-text-maxcontrast)
+	}
+
+	&__list {
+		display: flex;
+		flex-direction: column;
+		gap: 8px;
+		width: 100%;
+		height: 100%;
+		flex: 0 1 auto;
+		overflow-y: auto;
+	}
+
+	&__item {
+		display: flex;
+		align-items: center;
+		gap: 4px;
+		padding: 8px 0;
+		border-bottom: 1px solid var(--color-border);
+		&:last-child {
+			border-bottom: none;
+		}
+
+		&-desc {
+			display: flex;
+			flex-direction: column;
+			margin-right: auto;
+
+			&__name {
+				font-weight: bold;
+				color: var(--color-main-text);
+			}
+
+			&__subname {
+				color: var(--color-text-maxcontrast);
+			}
+		}
+	}
+}
+</style>
diff --git a/src/components/LeftSidebar/LeftSidebar.vue b/src/components/LeftSidebar/LeftSidebar.vue
index 170d24a8eda..a4d76e08745 100644
--- a/src/components/LeftSidebar/LeftSidebar.vue
+++ b/src/components/LeftSidebar/LeftSidebar.vue
@@ -127,8 +127,25 @@
 
 			<!-- New phone (SIP dial-out) dialog -->
 			<CallPhoneDialog ref="callPhoneDialog" />
+
+			<!-- New Pending Invitations dialog -->
+			<InvitationHandler v-if="isFederationEnabled" ref="invitationHandler" />
 		</div>
 
+		<NcAppNavigationItem v-if="pendingInvitationsCount"
+			class="invitation-button"
+			:name="t('spreed', 'Pending invitations')"
+			@click="showInvitationHandler">
+			<template #icon>
+				<AccountMultiplePlus :size="20" />
+			</template>
+			<template #counter>
+				<NcCounterBubble type="highlighted">
+					{{ pendingInvitationsCount }}
+				</NcCounterBubble>
+			</template>
+		</NcAppNavigationItem>
+
 		<template #list>
 			<li ref="container" class="left-sidebar__list">
 				<!-- Conversations List -->
@@ -268,6 +285,7 @@
 import debounce from 'debounce'
 import { ref } from 'vue'
 
+import AccountMultiplePlus from 'vue-material-design-icons/AccountMultiplePlus.vue'
 import AtIcon from 'vue-material-design-icons/At.vue'
 import ChatPlus from 'vue-material-design-icons/ChatPlus.vue'
 import FilterIcon from 'vue-material-design-icons/Filter.vue'
@@ -288,7 +306,9 @@ import NcActionButton from '@nextcloud/vue/dist/Components/NcActionButton.js'
 import NcActions from '@nextcloud/vue/dist/Components/NcActions.js'
 import NcAppNavigation from '@nextcloud/vue/dist/Components/NcAppNavigation.js'
 import NcAppNavigationCaption from '@nextcloud/vue/dist/Components/NcAppNavigationCaption.js'
+import NcAppNavigationItem from '@nextcloud/vue/dist/Components/NcAppNavigationItem.js'
 import NcButton from '@nextcloud/vue/dist/Components/NcButton.js'
+import NcCounterBubble from '@nextcloud/vue/dist/Components/NcCounterBubble.js'
 import NcEmptyContent from '@nextcloud/vue/dist/Components/NcEmptyContent.js'
 import NcListItem from '@nextcloud/vue/dist/Components/NcListItem.js'
 import { useIsMobile } from '@nextcloud/vue/dist/Composables/useIsMobile.js'
@@ -296,6 +316,7 @@ import { useIsMobile } from '@nextcloud/vue/dist/Composables/useIsMobile.js'
 import CallPhoneDialog from './CallPhoneDialog/CallPhoneDialog.vue'
 import Conversation from './ConversationsList/Conversation.vue'
 import ConversationsListVirtual from './ConversationsListVirtual.vue'
+import InvitationHandler from './InvitationHandler.vue'
 import OpenConversationsList from './OpenConversationsList/OpenConversationsList.vue'
 import SearchBox from './SearchBox/SearchBox.vue'
 import ConversationIcon from '../ConversationIcon.vue'
@@ -314,11 +335,13 @@ import {
 } from '../../services/conversationsService.js'
 import { EventBus } from '../../services/EventBus.js'
 import { talkBroadcastChannel } from '../../services/talkBroadcastChannel.js'
+import { useFederationStore } from '../../stores/federation.js'
 import { useTalkHashStore } from '../../stores/talkHash.js'
 import CancelableRequest from '../../utils/cancelableRequest.js'
 import { hasUnreadMentions, filterFunction } from '../../utils/conversation.js'
 import { requestTabLeadership } from '../../utils/requestTabLeadership.js'
 
+const isFederationEnabled = loadState('spreed', 'federation_enabled')
 const canModerateSipDialOut = getCapabilities()?.spreed?.features?.includes('sip-support-dialout')
 	&& getCapabilities()?.spreed?.config.call['sip-enabled']
 	&& getCapabilities()?.spreed?.config.call['sip-dialout-enabled']
@@ -329,9 +352,12 @@ export default {
 
 	components: {
 		CallPhoneDialog,
+		InvitationHandler,
 		NcAppNavigation,
 		NcAppNavigationCaption,
+		NcAppNavigationItem,
 		NcButton,
+		NcCounterBubble,
 		Hint,
 		SearchBox,
 		NewConversationDialog,
@@ -344,6 +370,7 @@ export default {
 		TransitionWrapper,
 		ConversationsListVirtual,
 		// Icons
+		AccountMultiplePlus,
 		AtIcon,
 		MessageBadge,
 		MessageOutline,
@@ -362,6 +389,7 @@ export default {
 		const searchBox = ref(null)
 		const list = ref(null)
 
+		const federationStore = useFederationStore()
 		const talkHashStore = useTalkHashStore()
 		const { initializeNavigation, resetNavigation } = useArrowNavigation(leftSidebar, searchBox, '.list-item')
 		const isMobile = useIsMobile()
@@ -372,9 +400,11 @@ export default {
 			leftSidebar,
 			searchBox,
 			list,
+			federationStore,
 			talkHashStore,
 			isMobile,
 			canModerateSipDialOut,
+			isFederationEnabled,
 		}
 	},
 
@@ -487,6 +517,12 @@ export default {
 			return this.conversationsList.find(conversation => conversation.type === CONVERSATION.TYPE.NOTE_TO_SELF)
 		},
 
+		pendingInvitationsCount() {
+			return isFederationEnabled
+				? Object.keys(this.federationStore.pendingShares).length
+				: 0
+		},
+
 		sourcesWithoutResults() {
 			return !this.searchResultsUsers.length
 				|| !this.searchResultsGroups.length
@@ -542,6 +578,10 @@ export default {
 			this.refreshTimer = window.setInterval(() => {
 				this.fetchConversations()
 			}, 30000)
+
+			if (isFederationEnabled) {
+				this.federationStore.getShares()
+			}
 		})
 
 		talkBroadcastChannel.addEventListener('message', (event) => {
@@ -615,6 +655,10 @@ export default {
 			this.$refs.callPhoneDialog.showModal()
 		},
 
+		showInvitationHandler() {
+			this.$refs.invitationHandler.showModal()
+		},
+
 		handleFilter(filter) {
 			this.isFiltered = filter
 			// Store the active filter
@@ -963,6 +1007,21 @@ export default {
 	}
 }
 
+.invitation-button {
+	padding: 0 6px;
+	overflow-y: scroll; // align total width with list items
+	margin-bottom: 4px;
+
+	:deep(.app-navigation-entry-link) {
+		padding-left: 10px;
+	}
+
+	:deep(.app-navigation-entry__name) {
+		padding-left: 8px;
+		font-weight: bold;
+	}
+}
+
 // Override vue overflow rules for <ul> elements within app-navigation
 .left-sidebar__list {
 	height: 100% !important;