Check the listing for details. Cortelco 8780 Single-Line-Powered Caller ID Speakerphone w/ Data Port. Color: Gray, Condition: Used. Listed at 24.99 USD. Cortelco 8780 Single-Line-Powered Caller ID Speakerphone w/ Data PortSupports Type I and II CIDRequires no batteries or AC AdaptorMulti-Angle Liquid Crystal Display76 Message CID MemoryMulti-Language CIDMessage Waiting (FSK, 90V, 24V)SpeakerphoneElectronic Hold (with music)Mute with LCD IndicationProgrammable FlashRedialAuto Redial (up to 15 attempts to a busy phone number)10 One-touch Speed Dial Memory Locations80 Phone Book Entries (16 characters for each name & 32 digits for each number)Ringer Volume Control (8 levels)Ring Tones (16 Selectable)Visual Ring IndicatorHandset Volume Control (4 levels)Speaker Volume Control (8 levels)Headset Jack (2.5mm)Desk/Wall MountableData PortTone/Pulse SwitchHearing Aid Compatible Phones Are In Excellent Working And Cosmetic Condition, Very Clean. Included Is Phone Base, Handset, Handset Cord And Line Cord. Business Communication Systems is a Proud Certified Panasonic Dealer. All Equipment Tested By A Certified Technician. AWESOME DEAL!Please contact BCS first if you encounter any issue with the transaction or our product before escalating an issue to eBay or PayPal. This courtesy is greatly appreciated and BCS will correct the problem, guaranteed. Thanks! Business Communication Systems is our established company carrying a large stock of new, refurbished and used equipment. We have been in the telecommunications business since 1987 and will always be here to serve your telephone equipment needs.