SIP工业电话机 KNEM-28

模拟GSMVoIP

Main Features: +Standard and SMART Analogue and VoIP-SIP/ GSM options available l DTMF(Dual Tone Multi Frequency) +Matching with most PABX,PBX and PAX systems. 1． Main body with whole metal body, solid and temperature bearable 2． Handset free, build-in loudspeaker, 3． Resume lightning proof protection automatically standard to ITU-T K21 4． Waterproof grade about IP55 5． The metal shell is provided with grounding connection device and is absolutely insulated with inner circuit and electric ,then has the effect of electromagnetism shield. 6． Support hotline call, can realize ring off automatically if the other side close. 7． Totally adopt SMTC craftwork keep very good quality. 8. KNEM-28 The design is super thin and smart. Embed style and hanging style can be chosen. 9． Every call is limited(set by five minutes),auto ring off if time exceeded. (Optional) 10．The telephone has passed the certificate of ISO9000(2000) 11．Built-in CCTV camera will open/close automatically when telephone on/OFF. 12．Blue light automatically open and /close when there’s a phone call coming.