The GSM Wireless Telephone Entry System allows you to grant access directly from your mobile device and does not require a direct phone line. Open your gate and speak to your visitors from anywhere in the world! A SIM card (not provided) is used to program, activate and communicate with your cell phone. In certain applications, can be more cost effective than traditional phone lines.

SDI GMS Phone Entry Systems

Key Product Features:

  • Calls up to 3 numbers in sequence
  • Caller ID features for access up to 100 authorized callers
  • Keypad stores up to 1,200 access codes


Product Documents:

Print Friendly, PDF & Email