P.S. : Signal Messenger is an instant messenger similar to Whatsapp. Mobile phone number is required for registration, but it would not be disclosed by default setting.
註:Signal messenger是一個像 Whatsapp 的即時通訊軟件,註冊時以手提電話號碼登記,但預設不會公開號碼。
P.S. : Signal Messenger is an instant messenger similar to Whatsapp. Mobile phone number is required for registration, but it would not be disclosed by default setting.
註:Signal messenger是一個像 Whatsapp 的即時通訊軟件,註冊時以手提電話號碼登記,但預設不會公開號碼。