Grandstream Networks GXP-280 manual Mute Speaker Ringer in Headset Mode

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LCD Backlight Always On

Time Display Format

Date Display Format

Display Clock instead of Date

Daylight Savings Time

LCD Backlight

Brightness

LCD Contrast

Disable in-call DTMF display

Mute Speaker Ringer in Headset Mode

Turn on LC backlight at all times. Default is No. This option applies to GXP- 1200/GXP-2000 only.

LCD time display in 12 hour or 24 hour format

Choose one of the following formats:

Year-Month-Day

Month-Day-Year

Day-Month-Year

This option applies to GXP280/GXP-1200/GXP-2000 only.

Choose to display clock or date on LCD. This option applies to GXP-280/GXP- 1200/GXP-2000 only.

This parameter controls time displayed in daylight savings time. If set to “Yes”, then the displayed time will be 1 hour ahead of normal time.

The “Optional Rule” is configured to automatically adjust the Daylight Savings Time (DST) based on the rule set in this field.

Rule Syntax:

start-time; end-time; saving

Both start-time and end-time have the same syntax: month,day,weekday,hour,minute o month: 1,2,3,..,12 (for Jan, Feb, .., Dec)

o day: [+-]1,2,3,..,31

o weekday: 1, 2, 3, .., 7 (for Mon, Tue, .., Sun), or 0 which means the daylight saving rule is not based on week days but based on the day of the month.

o hour: hour (0-23), minute: minute (0-59)

If “weekday” is 0, it means the date to start or end daylight saving is at exactly the given date. In that case, the “day” value must not be negative. If “weekday” is not zero and “day” is positive, then the daylight saving starts on the first “day” the iteration of the weekday (e.g.: 1st Sunday, 3rd Tuesday etc). If “weekday” is not zero and “day” is negative, then the daylight saving starts on the last “day” the iteration of the weekday (e.g.: last Sunday, 3rd last Tuesday etc).

The saving is in the unit of minutes. The saving time may also be preceded by a negative (-) sign if subtraction is desired instead of addition.

The default value is set for US, the “Automatic Daylight Saving Time Rule” shall be set to

“3,2,7,2,0;11,1,7,2,0;60”

Examples

US/Canada where daylight saving time is applicable: 03,02,7,02,00;11,1,7,02,00;60

This means the daylight saving time starts from the second Sunday of March at 2AM and ends the first Sunday of November at 2AM. The saving is 60 minutes.

Set the LCD brightness level. Range from 0 to 8 where 0 means off and 8 means the brightest. For GXP2010 and GXP2020.

Set LCD contrast. Range from 0 to 20. Not for GXP280

Default is No. This field is used to hide the keypad input during a call.

Default is No. This field lets user to choose whether to ring the phone Speaker when headset is connected.

Grandstream Networks, Inc.

GXP User Manual

Page 26 of 38

 

Firmware 1.1.6.44

Last Updated: 12/2008

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Contents Page Table of Figures GUI Interface Examples Welcome Installation GXP-Extension Connection plate Connecting the GXP-2000GXP-2000 w/GXP-Extension GXP-2000 Internal Headset Wiring Schema Product Overview GXP Product ModelsGXP Key Features in a Glance GXP Hardware SpecificationsGXP Technical Specifications Upgrades Audio FeaturesFeatures Server FeaturesLCD Icons Using the GXP SIP Enterprise PhoneLCD Buttons AM PM Line Buttons Completing Calls Handset, Speakerphone and Headset ModeMultiple SIP Accounts and Lines Speed Dial Making Calls using IP Addresses For exampleCall Waiting/ Call Hold Receiving CallsDo Not Disturb Mute/DeleteBusy Lamp Field Voice Messages Message Waiting IndicatorWay Conferencing Initiate a Conference CallGXP Call Features Key Call FeaturesConfiguration Guide Key Pad Configuration MenuFactory Reset Configure Factory Functions Reboot ExitUpgrade Layer 2 QoS Configure Vlan TagsSIP Access the Web Configuration Menu DefinitionsEnd User Password IP Address Multi Purpose Key Time Zone Device Configuration StatusDevice Configuration Basic Settings Mute Speaker Ringer in Headset Mode Advanced Settings Per TX Timeout Use # asVoice Frames Layer 3 QoSVia Http AuthenticateStun Server ServerDial Dtmf Payload DownloadApplication Offhook Auto Type OnhookWaiting Tone Disable Direct Disable CallWaiting Disable Call Call ModeSIP Account Settings Enable Call Features Retry Wait Time SIP T1 TimeoutDelayed Call Forward Local SIP PortCallee Request Timer Ring TimeoutCaller Request Timer Force TimerSpecial Feature Disable Multiple MediaSrtp Mode Allow Auto Answer byKey Pad Menu Software Upgrade & CustomizationWeb Configuration Interface No Local Tftp ServerManaging Firmware and Configuration File Download Instructions for local Tftp UpgradeRestore Factory Default Setting Instructions for Restoration

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.