appearances, the user can configure multiple line buttons to be “shared line” buttons associated with the account.

CALL FEATURES

The GXP21xx supports traditional and advanced telephony features including caller ID, caller ID w/name, call forward/transfer/park/hold as well as intercom/paging and BLF.

Table 11: GXP21xx Call Features

Key

*30

*31

*67

*82

*70

*71

*72

*73

*90

*91

*92

*93

Call Features

Block Caller ID (for all subsequent calls)

Send Caller ID (for all subsequent calls)

Block Caller ID (per call)

Send Caller ID (per call)

Disable Call Waiting (per Call)

Enable Call Waiting (per Call)

Unconditional Call Forward

Dial “*72” for a dial tone. Dial the forwarding number followed by “#”. Wait for dial tone. LCD will display “Call FWD Activated”.

Cancel Unconditional Call Forward: dial “*73” and get the dial tone, then hang up. LCD will display “Call FWD Activated”.

Busy Call Forward

Dial “*90” for a dial tone. Dial the forwarding number followed by “#”. Wait for a dial tone. Hang up.

Cancel Busy Call Forward: dial “*91”. Wait for dial tone. Hang up.

Delayed Call Forward

Dial “*92” for a dial tone. Dial the forwarding number followed by “#”. Wait for a dial tone. Hang up. LCD will display “Call FWD Activated”.

Cancel Delayed Call Forward

Dial “*93” for a dial tone, then hang up.

CUSTOMIZED LCD SCREEN & XML

Grandstream GXP21xx Enterprise IP phone support both simple and advanced XML applications: 1) XML Custom Screen, 2) XML Downloadable Phonebook and 3) Advanced XML Survey Application. For more information on how to create a downloadable XML phonebook, creating a custom idle screen and/or reprogramming the soft-keys on GXP21xx, please visit our website at: http://www.grandstream.com/support

Grandstream Networks, Inc.

GXP21xx User Manual

Page 19 of 41

 

Firmware version: 1.0.1.66

Last Updated: 05/2011

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Grandstream Networks GXP21XX user manual GXP21xx Call Features, Customized LCD Screen & XML

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.