2
CN2x4 SIP Phone User’s Manual
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Full-duplex speakerphone with echo cancellation
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10/100Base-T Ethernet Port, use RJ-45 interface
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Integrated Ethernet automatic toll switching repeater for PC connection
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Downloadable firmware for further upgrade
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IP address allocation - DHCP client or static settings
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Full-duplex handfree speakerphone
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26 buttons includes five standard function buttons, one menu button and one phone book
button.
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3* 16 screen shows date, time and phone number etc
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Handfree function with frequency-domain echo cancellation
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Network Bridge - Ethernet Hub with 2 ports
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6-level handfree volume
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6-level speech volume
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6-level ring volume and silence.
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4 ring types
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4-level screen brightness
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Coming call indication, received call list, outgoing call list and call history
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Re-dialing, flashing, silence, transfer functions
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Phone book
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DDNS supported
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NTP service and multi-DNS service supported
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Manu- and auto- speech codec negotiation
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G.711, G.723.1, G.723.1A, G.729A and G.729B speech coder
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Advanced speech processing: self-adaptable jitter buffer processing in case of package delay
and package jittering
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Supports VoIP under extreme network conditions. For example, packet loss rate is up to 40%
and network delay is up to 500ms.
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ToS bit supported for improving QoS in manageable network.
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Friendly user management interface.
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Implement managmet and configuration via keypad or Web Management System.
1.2
Profile And Buttons
1.2.1
Front View