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Major features
- Single-board 16/8 channel subscribers, supports generation and receiving of DTMF, supports caller ID, and capable of providing reverse polarity signal
- Gain software adjustable
- Indexes of the interfaces comply with requirements of General Technical Specification for Telephone Exchange Equipments in Ministry of Post and Telecommunications
- Provide over current and over voltage protection elements for necessary protection to comply with requirements of Chapter 18.3 in YDN 065-1997 General Technical Specification for Telephone Exchange Equipments in Ministry of Post and Telecommunications.
- Supports main/ standby roles
- Supports online update of softwares