398 recording telephone

Function: Digital recording Recording modes Recordings query Recording play Local voice message Transmit interfaces Computer management software Reserve backup Screen display Adapter property Normal telephone functionTelephone usage and maintenance notice Specification Auto delete/cover function Working voltage: DC9V-DC12V Power: < 0.2 A emory: built-in memory chip Voice compression: in accordance with the standard of G.723.1 virtual interfaces: RJ11 interface（outside line / extension） Digital interface: full speed USB 2.0 Recording time: 140 hours Volume adjustment level: 8 level Voice inquiry: 3 types ( serial number、date、number) Recording ways: 2 ways (call recording、answer recording) Recording mode: 2 kinds (manual、auto) Ringing volume adjustment: 2 levels