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A call link is a reusable URL that opens a Signal call. Unlike a group call tied to an existing group conversation, a call link creates a standalone ad-hoc meeting room. You share the link through any channel — Signal, email, a calendar invite — and anyone who taps it can join the call on Signal. Call links are stored in the Calls tab alongside your call history. You keep admin privileges for any link you create, which lets you control the name, access restrictions, and participant approval at any time.
1

Open the Calls tab

Tap Calls in the bottom navigation bar.
2

Tap the compose icon

Tap the pencil or compose icon at the top of the Calls tab to open the new call sheet.
3

Choose Create a call link

In the bottom sheet that appears, tap Create a call link. Signal generates a unique link and root key for the room.
4

Configure the link (optional)

Before sharing, you can set a name and toggle admin approval. See Configuring call link settings below.
5

Share or save

Tap Share link via Signal, Copy link, or Share link to send the URL, or tap Done to save the link for later.
The link is not committed to Signal’s servers until you first share or join it. Tapping Done without sharing or joining commits the link so it is saved to your account.
When you create a call link — or when you open an existing one you administer — you can adjust two settings:

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Call name

By default, a new call link has no name. Tap Add call name (or Edit call name for an existing link) to set a display name. This name appears in the call room and in the Calls tab for anyone who has joined.

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Admin approval

The Require admin approval toggle controls how participants enter the call.
Enable admin approval for meetings where you want to control exactly who enters — for example, a team call where the link may have been shared broadly.
From the call link creation sheet or the call link details screen, you have three share options:

Share via Signal

Opens Signal’s share sheet so you can send the link as a message to a contact or group.

Copy link

Copies the URL (https://signal.link/call/#key=…) to your clipboard. Paste it anywhere.

Share link

Opens Android’s system share sheet to send the link through any app on your device.
The shareable URL format is https://signal.link/call/#key=<root-key>. Anyone who receives this URL and has Signal installed can tap it to join.
1

Tap the link

Tap a signal.link/call URL in any app. Signal opens and shows a preview of the call room including its name (if one has been set).
2

Review and join

Tap Join on the call preview screen to enter the room.
3

Wait for approval (if required)

If the admin has enabled Require admin approval, you enter a waiting room. The admin sees a notification and must approve your entry before you can participate.
If you receive a call link from someone outside your contacts, Signal may warn you before opening the link. Review the URL before proceeding.
All call links you have created appear in the Calls tab alongside your call history. Links show a distinct icon and display the call name (or a placeholder if unnamed). Tap a call link row in the Calls tab to open its details screen. From there you can:
  • Edit the call name
  • Toggle admin approval
  • Share or copy the link
  • Join the call
  • Delete the link

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Editing the call name

On the call link details screen, tap Edit call name, enter a new name, and confirm. The updated name syncs to Signal’s servers so participants see it immediately.
1

Open the call link details

Tap the call link row in the Calls tab.
2

Tap Delete call link

Scroll to the bottom of the details screen and tap Delete call link (shown with a trash icon).
3

Confirm deletion

Tap Delete in the confirmation dialog. The link is immediately revoked — anyone who tries to join using the old URL will find it no longer works.
Deleting a call link is permanent. The URL stops working for all participants, including people who have saved it. You cannot recover a deleted link.
You can also delete a link from the Calls tab without opening the details screen by long-pressing the row and selecting Delete from the context menu.

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Admin controls during a call

When you join a call you created (or any call where you hold admin credentials), additional controls are available to manage participants.

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Approving participants

If Require admin approval is enabled, a notification appears when someone is waiting to join. Tap the participant request to approve or deny their entry.

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Removing participants

During the call, open the participant list and tap a participant’s name to access moderation options. You can remove a participant from the call. Removed participants see the call end on their device; they can attempt to rejoin if they still have the link, but you can deny re-entry through the approval flow.
Admin credentials are stored locally in the admin_key field of the call link record. If you lose access to the device where you created the link, you lose admin controls for that link.
When participants join a call via link, the call is recorded in the Calls tab as an ad-hoc call (AD_HOC_CALL type). These entries show the call link name, direction, and timestamp. The call log distinguishes ad-hoc calls from regular 1:1 and group calls. If you delete a call link, any associated call history entries are also marked for deletion and removed from the log.

Voice and video calls

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Encryption overview

How Signal’s end-to-end encryption protects call content.