VoIP- Siemens optiPoint 420 advance
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| Brand: | Siemens |
| Description: | Type: VoIP phone, interfaces: headset connection, LAN port, USB port, WAN port, features: PoE, SIP, Web interface, connection of additional modules, phone functions: built-in phone book, speakerphone, caller ID, hold/wait calls, echo cancellation |
| Interfaces: | Headset connection, LAN port, USB port, WAN port |
| Type: | VoIP phone |
| Battery type: | No |
| LCD display: | Monochrome |