Desktop Phones

Cisco SPA 504G

4 Line IP Phone With Display, PoE and PC Port refurb with 1 year warranty General Information Manufacturer Cisco Systems, Inc Manufacturer Part Number SPA504G Brand Name Cisco Product Series 500 Product Model SPA 504G Product Name SPA 504G IP Phone Product Type IP Phone Technical Information IP Phone Technology VoIP Total Number of Phone Lines 4 Voice Codec G.711a Voice Codec G.711u Voice Codec G.726 Voice Codec G.729a Voice Codec G.722 Voice Codec G.723.1 Display & Graphics Screen Type LCD Display Colour Monochrome Backlight Yes Screen Resolution 128 x 64 Interfaces/Ports Network (RJ-45) Yes Number of Network (RJ-45) Ports 2 Headset Port Yes Management & Protocols Communication Protocols SIP v2 Controls/Indicators Buttons & Keys Type Hold Button Power Description Input Voltage 110 V AC Input Voltage 220 V AC Miscellaneous Package Contents SPA504G IP Phone Stand Handset Cord RJ45 Ethernet Cable Quick Installation Guide Additional Information PoE support High Quality Handset and Cradle Built-In High Quality Microphone and Speaker Adaptive Jitter Buffer VAD Voice Activity Detection with Silence Suppression Provisioning, Administration, and Maintenance Speakerphone Call Hold Music on Hold Call Waiting Caller ID Name and Number and Outbound Caller ID Blocking Outbound Caller ID Blocking Call Transfer - Attended and Blind Three Way Call Conferencing with Local Mixing Connects to External Conference Bridge for Multi-party Conferencing Automatic Redial of Last Calling and Last Called Numbers On-Hook Dialing Call Pick Up Call Blocking Do Not Disturb Intercom Call Forwarding

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