Industrial vandal proof volume control public telephone
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Catalog excerpts

Industrial vandal proof volume control public telephone - 1

Ningbo Joiwo Explosionproof Science & Technology Co., Ltd. CALLER ID PHONE Product Model: JWAT924 Defend Grade:IP65 Communication System: IP Material: Stainless Steel 304 Color:stainless steel (Optional) Technical Parameters Protocol Audio Amplifier Volume Control Power Supply Application The stainless steel phone can be used in a variety of applications such as in jails, hospitals, oil rigs, platforms, dormitories, airports, control rooms, sally ports, schools, plant, gate and entryways, PREA phone,or waiting rooms etc. No. 8 Middle Road Guoxiang Bridge Lanjiang Street Yuyao Zhejiang

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Industrial vandal proof volume control public telephone - 2

Ningbo Joiwo Explosionproof Science & Technology Co., Ltd. Features 1. 304 stainless steel material shell, high mechanical strength and strong impact resistance. 2. Heavy Duty handset with hearing Aid compatible receiver, Noise canceling microphone available. 3. Metal Keypad with volume control button. 4. With display, can display the outgoing number, call duration, etc. 5. The sensitivity of the speaker and microphone can be adjusted; optional voice coding methods such as G.729, G.723, G.711, G.722, G.726;Support 2 lines SIP, SIP 2.0 (RFC3261). 6. IP Protocols:IPv4, TCP, UDP, TFTP, RTP,...

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