Grandstream Networks GXP-280 Device, Management, Audio Features, Telephony, Network, Provisioning

Page 11

SPEAKERPHONE

Yes

Yes

Yes

Yes

Yes

SEND

Yes

Yes

Yes

Yes

Yes

TRANSFER

Yes

Yes

Yes

Yes

Yes

CONF

Yes

Yes

Yes

Yes

Yes

MUTE

Yes

Yes

Yes

Yes

Yes

DND

Yes

Yes

Yes

Yes

Yes

HEADSET

Yes

Yes

Yes

Yes

Yes

INTERCOM

No

No

No

Yes

Yes

PHONEBOOK

No

No

No

Yes

Yes

MSG

Yes

Yes

Yes

Yes

Yes

MENU

Yes

Yes

Yes

Yes

Yes

NAVIGATION (4)

Yes (3)

Yes

Yes

Yes

Yes

Device

NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices

Management

including behind firewall/NAT

 

Auto/manual provisioning system, GUI Interface

 

Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)

 

Expansion interface, Address Book

Audio Features

Full-duplex hands-free speakerphone, headset enabled

 

Advanced Digital Signal Processing (DSP)

 

Dynamic negotiation of codec and voice payload length

 

Support for G.723,1 (5.3/6.3K), G.729A/B, G.711 a/µ-law, G.726-32, G.722 (wide-

 

band), GSM and iLBC codecs

 

In-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)

 

Silence Suppression, VAD (voice activity detection), CNG (comfort noise

 

generation), ANG (automatic gain control)

 

Acoustic Echo Cancellation (AEC) with Acoustic Gain Control (AGC) for

 

speakerphone mode, Support side tone

 

Adaptive jitter buffer control (patent-pending) and packet delay & loss concealment

Telephony

Intuitive graphic user interface (GUI), downloadable phone book (XML, LDAP),

Features

support for anonymous call using privacy header, MLS (multi language support)

 

Voice mail indicator, downloadable custom ring-tones, call hold, call transfer

 

(attended/blind), call forward, call waiting, caller ID, mute, redial, call log, caller ID

 

display or block, Do-Not-Disturb (DND) and volume control

 

Multi-party conferencing (up to 5), dial plan prefix, off-hook auto dial, auto answer,

 

early dial and speed dial (on some models)

Network and

Via keypad/LCD, Web browser, or secure (AES encrypted) central configuration file,

Provisioning

manual or dynamic host configuration protocol (DHCP) network setup

 

Support NAT traversal using IETF STUN and Symmetric RTP

 

Support for IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS

Firmware

Support firmware upgrade via TFTP or HTTP,

Upgrades

Support for Authenticating configuration file before accepting changes

 

User specific URL for configuration file and firmware files

Advanced

Message waiting indication, support DNS SRV Look up and SIP Server Fail Over,

Server Features

Support customizable idle screen via downloading XML by HTTP/TFTP

Security

DIGEST authentication and encryption using MD5 and MD5-sess, SRTP, SIP over

 

TLS (pending)

 

 

 

 

 

Grandstream Networks, Inc.

GXP User Manual

Page 11 of 38

 

 

Firmware 1.1.6.44

Last Updated: 12/2008

Image 11
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 GXP Product Models Product OverviewGXP Hardware Specifications GXP Key Features in a GlanceGXP Technical Specifications Server Features Audio FeaturesFeatures UpgradesLCD 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 For example Making Calls using IP AddressesMute/Delete Receiving CallsDo Not Disturb Call Waiting/ Call HoldInitiate a Conference Call Voice Messages Message Waiting IndicatorWay Conferencing Busy Lamp FieldKey Call Features GXP Call FeaturesKey Pad Configuration Menu Configuration GuideLayer 2 QoS Configure Vlan Tags Configure Factory Functions Reboot ExitUpgrade Factory ResetSIP Definitions Access the Web Configuration MenuEnd User Password IP Address Multi Purpose Key Time Zone Device Configuration StatusDevice Configuration Basic Settings Mute Speaker Ringer in Headset Mode Advanced Settings Layer 3 QoS Timeout Use # asVoice Frames Per TXServer AuthenticateStun Server Via HttpType Onhook DownloadApplication Offhook Auto Dial Dtmf PayloadCall Mode Disable CallWaiting Disable Call Waiting Tone Disable DirectSIP Account Settings Local SIP Port Retry Wait Time SIP T1 TimeoutDelayed Call Forward Enable Call FeaturesForce Timer Ring TimeoutCaller Request Timer Callee Request TimerAllow Auto Answer by Disable Multiple MediaSrtp Mode Special FeatureNo Local Tftp Server Software Upgrade & CustomizationWeb Configuration Interface Key Pad MenuInstructions for local Tftp Upgrade Managing Firmware and Configuration File DownloadInstructions for Restoration Restore Factory Default Setting

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.