4.USING THE PHONEBOOK: To call a phone number from Phonebook

Each entry in the phonebook can be attached to an individual SIP account. The phone will use that SIP account to make the phone call.

•Go to the phonebook by:

i.Pressing the phonebook button (bottom, left-hand side of phone), or

ii.Pressing the DOWN arrow key, or

iii.Pressing the menu button and selecting “Phone book”

iv.Pressing MENU

•Select the phone number by using the arrow keys

•Press OK so select

•Press OK again to dial.

5.PAGING/INTERCOM:

The paging/intercom function can only be used if the SERVER/PBX supports this feature and both the phones and PBX are correctly configured.

•Take the Handset/SPEAKER/Headset off-hook

•Select the LINE key associated with account

•Press OK key to display LCD: LINEx: PAGE.

•Dial the phone number you want to Page/Intercom

•Press SEND key.

NOTE: Dial-tone and dialed number display occurs after the handset is off-hook and the line key is selected. The phone waits 4 seconds (by default; No key Entry Timeout) before sending and initiating the call. Press the “SEND” or “#” button to override the 4 second delay.

Speed Dial

The Multi Purpose Key buttons, located on the right-hand-side of the phone, can be configured for speed dial. Press the speed dial button to automatically call the assigned extension.

Note: The multi-functional buttons will function as LINE keys when all LINEs are busy. The LED will flash in red to indicate an incoming call. Press the button to pick up the call. If any one of the Multi Purpose Keys is associated with a call, the button’s speed dial/BLF function will not work.

Making Calls using IP Addresses

Direct IP Call allows two phones to talk to each other in an ad-hoc fashion without a SIP proxy. VoIP calls can be made between two phones if:

•Both phones have public IP addresses, or

•Both phones are on a same LAN/VPN using private or public IP addresses, or

•Both phones can be connected through a router using public or private IP addresses (with necessary port forwarding or DMZ)

To make a direct IP call, please follow these steps:

1.Press MENU button to bring up MAIN MENU

2.Select “Direct IP Call” using the arrow-keys

3.Press OK to select

4.Input the 12-digit target IP address. (Please see example below)

Grandstream Networks, Inc.

GXP21xx User Manual

Page 15 of 41

 

Firmware version: 1.0.1.66

Last Updated: 05/2011

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Grandstream Networks GXP21XX user manual Speed Dial, Making Calls using IP Addresses
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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.
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