Features:1) With SIM card2) Convenient operations3) Phone book4) Intelligent power management5) Random PIN code protection6) Long distance calls locking7) Call records8) Supports carrier locking9) Han

Features:1) Supports fax and telephone ports2) Phone book3) Intelligent power management4) Attached small keyboard5) Long distance call locking6) Supports carrier locking7) Supports keyboard locking8)

Features:1) Payphone function2) English and Chinese menu 3) Phone book4) Number group management5) Attached small keyboard6) Automatically adds IP7) Call records8) Hands free 9) Supports keyboard lock

Features:1) Supports carrier lock2) Network management to modify parameters remotely3) Phone book4) Supports barring calls5) Attached small keyboard6) 5-second prompts to switch7) Call records8) Suppo

Features:1) Store up to recent 600 pieces of billing record2) Support carrier lock3) Setting Barred calls4) Support carrier remote network management5) GSM900/1,800MHz6) Support hands-free calling and

Features:1) Frequency: 900 / 1,800MHz, 850 / 1,900MHz2) External backup batteries which are easy to install3) Displays signal strength4) Supports Mini-PABX to connect with GSM5) Provides feedback sign

Features:1) Frequency: 900 / 1,800MHz, 850 / 1,900MHz2) Supports mini-PABX to connect with GSM3) Provides feedback signal for payphone4) GSM voice communication5) Supports SIM card lock6) With Interne

Features:1) Frequency: 900 / 1,800MHz, 850 / 1,900MHz2) Supports mini-PABX to connect with GSM3) Provides feedback signal for payphone4) GSM voice communication5) Supports SIM card lock6) With Interne

Features:1) Frequency: 900 / 1,800MHz, 850 / 1,900MHz2) External backup batteries which are easy to install3) Displays signal strength4) Supports Mini-PABX to connect with GSM5) Provides feedback sign