mga kalakal /serbisyo Software & Hardware Signal 4.0 Namarkahan 4.0 wala na sa 5 4.0 out of 5 stars (based on 4 reviews) Magaling0%Napakabuti100%Average na0%Mahihirap0%Kakila-kilabot na kakila-kil0% Sa pamamagitan ngtrom11/05/2020 Signal is a cross-platform encrypted messaging service developed by the Signal Foundation and Magbasa Pa