diff --git a/ts/components/conversation/ConversationHeader.stories.tsx b/ts/components/conversation/ConversationHeader.stories.tsx
index 548fd00703..70c9173d6d 100644
--- a/ts/components/conversation/ConversationHeader.stories.tsx
+++ b/ts/components/conversation/ConversationHeader.stories.tsx
@@ -188,6 +188,19 @@ const stories: Array<ConversationHeaderStory> = [
           muteExpiresAt: new Date('3000-10-18T11:11:11Z').valueOf(),
         },
       },
+      {
+        title: 'SMS-only conversation',
+        props: {
+          ...commonProps,
+          color: 'ultramarine',
+          title: '(202) 555-0006',
+          phoneNumber: '(202) 555-0006',
+          type: 'direct',
+          id: '6',
+          acceptedMessageRequest: true,
+          isSMSOnly: true,
+        },
+      },
     ],
   },
   {
diff --git a/ts/components/conversation/ConversationHeader.tsx b/ts/components/conversation/ConversationHeader.tsx
index f095d09468..19eb80fd17 100644
--- a/ts/components/conversation/ConversationHeader.tsx
+++ b/ts/components/conversation/ConversationHeader.tsx
@@ -35,6 +35,7 @@ export type PropsDataType = {
   isMissingMandatoryProfileSharing?: boolean;
   outgoingCallButtonStyle: OutgoingCallButtonStyle;
   showBackButton?: boolean;
+  isSMSOnly?: boolean;
 } & Pick<
   ConversationType,
   | 'acceptedMessageRequest'
@@ -570,7 +571,7 @@ export class ConversationHeader extends React.Component<PropsType, StateType> {
   }
 
   public render(): ReactNode {
-    const { id } = this.props;
+    const { id, isSMSOnly } = this.props;
     const { isNarrow } = this.state;
     const triggerId = `conversation-${id}`;
 
@@ -593,7 +594,7 @@ export class ConversationHeader extends React.Component<PropsType, StateType> {
           >
             {this.renderBackButton()}
             {this.renderHeader()}
-            {this.renderOutgoingCallButtons()}
+            {!isSMSOnly && this.renderOutgoingCallButtons()}
             {this.renderSearchButton()}
             {this.renderMoreButton(triggerId)}
             {this.renderMenu(triggerId)}
diff --git a/ts/state/smart/ConversationHeader.tsx b/ts/state/smart/ConversationHeader.tsx
index ab8eae0021..6066149d7f 100644
--- a/ts/state/smart/ConversationHeader.tsx
+++ b/ts/state/smart/ConversationHeader.tsx
@@ -18,6 +18,7 @@ import { getActiveCall, isAnybodyElseInGroupCall } from '../ducks/calling';
 import { getUserConversationId, getIntl } from '../selectors/user';
 import { getOwn } from '../../util/getOwn';
 import { missingCaseError } from '../../util/missingCaseError';
+import { isConversationSMSOnly } from '../../util/isConversationSMSOnly';
 import { isGroupCallingEnabled } from '../../util/isGroupCallingEnabled';
 
 export type OwnProps = {
@@ -117,6 +118,7 @@ const mapStateToProps = (state: StateType, ownProps: OwnProps) => {
         conversation.messageCount &&
         conversation.messageCount > 0
     ),
+    isSMSOnly: isConversationSMSOnly(conversation),
     i18n: getIntl(state),
     showBackButton: state.conversations.selectedConversationPanelDepth > 0,
     outgoingCallButtonStyle: getOutgoingCallButtonStyle(conversation, state),