You can register for Signal with a Google Voice (GV) number. You will have to continue with the call verification to complete registration.
This GV phone number is how other Signal users will be able to message or call you. Signal does not support SMS/MMS through your GV number, only Google apps can do that. Signal handles SMS/MMS through your mobile SIM card number and through your mobile plan. You can set up SMS forwarding through Google where you will see the GV forwarding number and not your contact's number.
- I have Bob that I text through GV.
- When I set GV to forward texts to my mobile number, his SMS text pops up in Signal.
- Bob's real number is 408-XXX-XXXX but I see the GV assigned number of 909-XXX-XXXX.
- Whenever I text the 909 number through Signal, GV automatically recognizes that as Bob's 408 number and forwards the message to him. Bob sees the message from my GV number.
What number does your contact see?
- If you send a Signal message, it is private and originates from your Google Voice number as that is your Signal registered number. Your recipient will see your Signal registered number which is your Google Voice number.
- If you send an insecure SMS/MMS, it originates from you mobile SIM card phone number as it is going through your mobile plan and will reveal your mobile number to your recipient.
- If you enable Google Voice SMS forwarding, then you can respond to insecure SMS/MMS messages linked to your Google Voice number, it will go through your mobile plan and Google and it will show your Google Voice number to your recipient.
- If you place a Signal call, it is private and originates from your Signal registered number and is going through the internet.
- If you place an insecure call, it originates from you mobile SIM card phone number and goes through your mobile plan.