Call Waiting/ Call Hold, Mute | Grandstream Networks GXP21XX

PHONE FUNCTIONS DURING A PHONE CALL

Call Waiting/ Call Hold

1.Hold: Place a call on hold by pressing the “HOLD” button.

2.Resume: Resume call by pressing the corresponding blinking LINE.

3.Multiple Calls: Automatically place ACTIVE call on “HOLD” by selecting another available LINE to place or receive another call. Call Waiting tone (stutter tone) audible when line is in use.

Mute

1.Press the MUTE button to enable/disable muting the microphone.

2.The “Line Status Indicator” will show “LINEx: SPEAKING” or “LINEx: MUTE” to indicate whether the microphone is muted.

Call Transfer

GXP21xx supports both Blind and Attended transfer. Also, users could make auto-attended transfer when this feature is enabled from web GUI.

1.Blind Transfer: Press “TRANSFER” button, then dial the number and press the “SEND” button to complete transfer of active call.

2.Attended Transfer: Press “LINEx” button to make a call and automatically place the ACTIVE LINE on HOLD. Once the call is established, press “TRANSFER” key then the LINE button of the waiting line to transfer the call. Hang up the phone call after “Transfer Successful” is displayed in the screen.

3.Auto-Attended Transfer: Users could enable Auto-Attended Transfer under Web GUI->Advanced Setting Page. During the first call, press “TRANSFER” hard button and it will bring up another line. The first call will be on hold. Enter the number and press SEND key to establish the second call (If pressing soft key “transfer” after entering the number, it will do blind transfer instead). After the second call is established, press “TRANSFER” hard button again. Now the phone will hang up and the call will be transferred.

NOTE: To transfer calls across SIP domains, SIP service providers must support transfer across SIP domains. Blind transfer will usually use the primary account SIP profile.

5-Way Conferencing

GXP21xx can host conference calls and supports up to 5-way conference calling (Excludes GXP2100 which supports up to 4-way).

1.Initiate a Conference Call:

Establish a connection with two or more parties

Press CONF button

Choose the desired line to join the conference by pressing the corresponding LINE button

Repeat previous two steps for all other parties that would like to join the conference. This can be done at any time. However, if a new call comes in, the other calls will be placed on hold and the host will have to individually re-join the held lines back into the conference by repeating the previous two steps again

Grandstream Networks, Inc.	GXP21xx User Manual	Page 17 of 41
	Firmware version: 1.0.1.66	Last Updated: 05/2011

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.