Guide to Grandstream Call Transfer, Call Waiting, and Do Not Disturb Features

ANSWERING PHONE CALLS

Receiving Calls

1.Incoming single call: Phone rings with selected ring-tone. The corresponding account LINE flashes red. Answer call by taking Handset/SPEAKER/Headset off hook or pressing SPEAKER or by pressing the corresponding account LINE button.

2.Incoming multiple calls: When another call comes in while having an active call, the phone will produce a Call Waiting tone (stutter tone). Next available lines will flash red (as described in section 4.3.2). Answer the incoming call by pressing its corresponding LINE button. The current active call will be put on hold.

3.Paging/Intercom Enabled: Phone beeps once and automatically establishes the call via SPEAKER. (PBX (or Server) must also supports this feature)

Do Not Disturb

1.Press the “DND” or “MUTE” button if you do not want to take a call. This will send the caller directly to voicemail.

2.Press the “DND” or “MUTE” button to set phone to ‘do not disturb’ (icon will be on the screen). The phone will not ring and send caller directly to voicemail. (see note above)

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/Delete

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.

NOTE: Pressing MUTE button for an incoming call will reject the call. MUTE button also functions as delete key when user wishs to delete the last entered digit.

Call Transfer

GXP supports both Blind and Attended (or supervised) transfer:

1.Blind Transfer: Press “TRANSFER (or TRNF for GXP-2000)” button, then dial the number and press the “SEND” button to complete transfer of active call.

Grandstream Networks, Inc.	GXP User Manual	Page 18 of 38
	Firmware 1.1.6.44	Last Updated: 12/2008

GXP-280 specifications

The Grandstream Networks GXP-280 is a well-regarded model in the realm of VoIP (Voice over Internet Protocol) telephony, designed particularly for small to medium-sized businesses. This feature-rich IP phone is recognized for its reliability, ease of use, and versatile functionalities, making it a preferred choice among business users seeking a robust and effective communication solution.

One of the standout features of the GXP-280 is its support for up to four SIP accounts, enabling users to manage multiple lines simultaneously. This is particularly beneficial for businesses that require efficient call handling across different departments or clients. The phone sports an intuitive LCD display that provides clear visibility of caller information, call status, and feature access, ensuring user-friendly operation.

The GXP-280 is powered by advanced technologies such as HD Voice, which provides crystal-clear audio quality during calls. This clarity is further enhanced by the phone’s wideband audio support, allowing for richer sound reproduction that is crucial for effective communication. The phone is equipped with dual Ethernet ports, one of which supports Power over Ethernet (PoE), simplifying the installation process by allowing power and data to be transmitted through a single cable.

In terms of flexibility and personalization, the GXP-280 comes with programmable soft keys, allowing users to customize their interface to suit their specific workflow preferences. Additionally, the phone includes built-in Bluetooth support, which extends its capabilities to integrate with wireless headsets, enabling hands-free operations.

Security is also a pivotal aspect of the GXP-280, as it features encrypted signaling and media, ensuring that business communications remain secure from potential threats. The device supports standard security protocols such as SRTP and TLS, making it compliant with contemporary security standards.

Moreover, the GXP-280 offers a variety of codec options, including G.722, G.711, and G.729, allowing it to adapt to various network conditions and requirements. Its compatibility with a wide range of SIP platforms adds to its appeal, making deployment in existing infrastructures seamless.

To summarize, the Grandstream Networks GXP-280 is a versatile, reliable, and feature-rich IP phone that stands out for its clarity, flexibility, and security, making it an excellent choice for businesses looking to enhance their communication systems. With its impressive array of functionalities and support for modern technologies, the GXP-280 is a representation of Grandstream's commitment to providing high-quality communication solutions.