STARK SGS10-DM Support Analog and digital models Support various voice call type It has Various Analog Signalling type(QDC 1200, DTMF, 2-tone and CTCSS) Support Automatic Roaming of all sites Support analog Scrambling and digital Encryption using Advance Encryption Standard and ARCFOUR Customer can upgrade Software to tier-III without buying new devices Stable GPS Performance and GPS text message For more information visit us www.antrikshonline.com