Signal/Registration-and-Provisioning-via-signal-cli.md

@@ -56,3 +56,12 @@ _Wait until additional software has been installed successfully_
 ## Registration
 1. Follow steps 1 through 5 at section [General use of signal-cli on Tails](#General-use-of-signal-cli-on-Tails)
 2. Follow the steps on https://github.com/AsamK/signal-cli/wiki/Registration-with-captcha
+### Additional Tips:
+- If you want to register a number which is only able to receive phone calls, add the `--voice` parameter to the register command:
+~~~
+signal-cli -u $PHONE_NR register --voice --captcha "signalcaptcha://signal-recaptcha-v2.someshortercode.registration.someverylongcode"
+~~~
+- If the number was registered before and locked with a pin, use the ping parameter during `verify` command:
+~~~
+signal-cli -a $PHONE_NR verify --pin "yourPIN" 123456
+~~~