Config

Factory Functions

Network

Reboot

Exit

location if available. Also, the phone will download secondary language if available.

Time Settings

Press Menu button to choose the menu item

Press “←” or follow the soft keys to return to the main menu

Press Menu button to display the configuration selections:

SIP

To change SIP server settings for SIP accounts.

Upgrade

In this menu setting regarding the firmware server and Config server can be changed. It also enables the user to make the phone attempt to download new firmware.

Factory Reset

Key in the physical/MAC address on back of the phone.

Press Menu button to reset FACTORY DEFAULT setting. Do not use Factory Reset unless you want to restore factory settings.

Layer 2 QoS

Configure 802.1Q/VLAN Tag and priority value.

Press Menu to display the factory function items including

Audio Loopback

Speak into the handset. If you hear your voice in the handset, your audio works fine. Press Menu button to exit the mode

Diagnostic Mode All LEDs will light up.

Press any key on the keypad, to display the button name in the LCD. Lift and put back the handset or press Menu button to exit the diagnostic mode.

Press “←” to return the main menu

To enable/disable DHCP; to setup IP-address, Net mask and Gateway address

Press Menu button to reboot the device

Exit from this menu

FIGURE 2: KEYPAD GUI FLOW

Grandstream Networks, Inc.

GXP21xx User Manual

Page 21 of 41

 

Firmware version: 1.0.1.66

Last Updated: 05/2011

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Grandstream Networks GXP21XX user manual Sip

GXP21XX specifications

Grandstream Networks GXP21XX series is a line of high-performance VoIP (Voice over Internet Protocol) desktop IP phones designed to deliver a versatile communication experience for both small and medium-sized businesses as well as large enterprises. The GXP21XX series encompasses a range of models, including the GXP2130, GXP2140, and GXP2160, each offering distinct features and capabilities to cater to various user needs.

One of the main features of the GXP21XX series is its support for high-definition (HD) voice technology. This ensures crystal-clear audio quality during calls, enhancing the overall communication experience. HD voice is complemented by advanced echo cancellation and noise reduction technologies, making it easy to communicate even in bustling environments.

The GXP21XX series boasts a user-friendly interface supported by a large LCD display, which is designed for easy navigation and menu access. These phones offer programmable keys, allowing users to customize their devices for quick access to frequently used features, including speed dials and call transfers.

In terms of connectivity, the GXP21XX series is equipped with dual Gigabit Ethernet ports, facilitating high-speed connections to both the local network and the internet. This allows for seamless integration into existing infrastructures without compromising call quality or network performance. Additionally, the phones support Power over Ethernet (PoE), enabling straightforward installation without the need for additional power sources.

The phones come pre-loaded with a multitude of voice codecs, including G.722, G.711, and G.729, offering flexibility to adapt to various network conditions. Users can enjoy secure communication through built-in security encryption features, such as TLS and SRTP, ensuring sensitive data remains safeguarded.

Moreover, the GXP21XX series incorporates advanced functionalities, such as support for up to six SIP accounts, call presence, and a full-duplex speakerphone, making them ideal for multi-tasking and collaborative environments. Interoperability with major VoIP platforms enhances compatibility, ensuring that users can easily integrate their devices into diverse communication systems.

In conclusion, the Grandstream GXP21XX series stands out as a robust and feature-rich solution for VoIP communication. With its focus on HD voice quality, user-friendly interface, and advanced connectivity options, it provides a comprehensive tool for enhancing both individual and team productivity. Whether used in an office environment or for remote work, the GXP21XX series delivers reliability and performance tailored to the needs of today’s business communication landscape.