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General| Lines | 4 |
|---|---|
| SIP Accounts | 4 |
| Bluetooth | No |
| Audio Codecs | G.711 |
| Ethernet Ports | 2 (10/100/1000 Mbps) |
| PoE | Yes |
| Protocols Supported | SIP |
| Headset Jack | Yes |
| Expansion Module | Yes |
| Speakerphone | Yes |
| Call Features | Call Waiting |
| Security | TLS |
Provides comprehensive technical details for each GXP21xx model, covering protocols, interfaces, and physical attributes.
Details how to use the phone's keypad for navigation, making calls, and accessing configuration menus.
Describes how to make direct IP calls and use the Quick IP Call mode for peer-to-peer communication.
Covers the configuration, display, and usage of Virtual Multi-Purpose Keys for custom shortcuts.
Details enabling/disabling Do Not Disturb, call waiting, call hold, and mute functions.
Covers blind, attended transfers, and using the target selection feature for transfers and conferences.
Guides on changing the default administrator password upon first boot for enhanced security.
Details how to access factory functions for diagnosing hardware and software issues on the phone.
Provides instructions for performing a factory reset using hard keys or the LCD menu.
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