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Best Telephones | Telephone Systems - System Phones - VoIP UK | Siemens Phone Systems | Siemens Optipoint Telephones IP Phones & Accessories | Siemens optiPoint IP Phones | Optipoint 420 Advance Siemens Optipoint 420 Advance IP Phone - Artic White - L30250-F600-A188
Modular, multi-line IP speaker phone with self-labelling key functionality. 4 line, backlit LCD display 10/100 base T network interface 18 function keys with LEDs OptiGuide dialogue keys Fully duplex speakerphone Headset port Integrated USB port OptiPoint adaptor/module G.711, G.723 & G.729 PoE on unused / used pairs Supports SIP and CorNet IP
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