Now you can securely link multiple phones to one Signal account
You can link more devices with one phone number on Signal now, including an Android phone or iPhone. Signal already supported linking PCs and iPads, but not additional phones. When you link a device on Signal, you can check and respond to new messages across all of your linked devices. You can also choose whether or not to transfer an end-to-end encrypted copy of your previous messages to each newly linked device to mitigate the risk of devices that might be shared, lost, or compromised.
The update is rolling out now with Signal version 8.20 on Android and version 8.22 for iPhone / iPad.
Signal also says it has made "significant interface ...