SIMfixed Card@Watchdata

SIMfixed is a phone card for wireless phone. It could ensure security of key issuance and usage, thus it ensures specific wireless phones could only read corresponding phone cards, for example, wireless phones from one telecom operator could not read a phone card from another operator. This prevents phone cards forgery and other illegal activities.

Key technical specifications

• Supports security of user information storage and comprehensive network identity authentication, GSM or CDMA network

• Supports various STK / UTK mobile value-added applications

• Supports comprehensive security measures to safeguard the operator´s interests

• ESAM module embedded in the phone´s motherboard to ensure security

Related solution

Wireless public telephone application


SIMfixed has been used in China Mobile wireless terminals.