Depending on the installed firmware version, the update procedure differs.

Already on firmware version 2.00 or later, continue reading on this page.

It is relatively easy to change the perl script as the firmware is upgraded.

Modifying the script The command to generate a configuration file for an extension is then:/bin/bash XXXwhere XXX is the extension number.

And while handset is picked up,speaker key can be used to toggle between handset and headset.• Added "DND" feature on BT200.

When mute/del key is pressed while phone is idle, "DND" willshow on LCD instead of date, and no phone call will come in• Changed "Received Calls" to "Answered Calls"• Changed the term "default route" on web config page to "Gateway"• Added feature that DNS server can be configured through LCD menu• Send flash event radio button taken out from BT200 and GXP280 restored as well as itsfunctionality.

They have answered many questions and seem to be very responsive.

While high definition phones with video conferencing capabilities are nice, most people do not require these sometimes 0 devices to get through their day-to-day operations.

The new GXP2020 Enterprise SIP phone sports a new stylish design and addresses the need for an elegant IP handset solution for the executive office at a highly competitive price.

The GXP2020 is a powerful IP telephone that offers excellent voice clarity, a comprehensive set of advanced call features, multi-language support, security protection, automated provisioning, and broad compatibility with leading SIP platforms including but not limited to Avaya Communication Manager 3.1TM and Avaya SIP Enablement Services 3.1TM, Broad Soft�s Broad Works®, and asterisk.

The SIP stack for GXP series SIP phones is also verified by tek Vizion (third party testing lab for Cisco Unified Call Manager TM 5.0).

The GXP2020 advanced features include 13 call appearance lines with dual color LED (6 lines each programmable with an independent SIP account and 7 programmable hard keys), 4 XML programmable context-sensitive soft keys, 8 function keys, high fidelity wideband audio, a backlit 320x160 high resolution graphic LCD with multi-level grey scales, full-duplex speakerphone with advanced acoustic echo cancellation, dual headset jacks (2.5mm and RJ22), multi-party local conferencing (up to 5-way), shared line appearance and busy lamp field (BLF), comprehensive voice codecs including G.711 (a/u-law), G.723.1, G.729A/B, G.726, GSM, i LBC, and G.722 (wideband), integrated Po E, SRTP and TLS (pending) for privacy protection, as well as secure and automated provisioning for mass deployment.

We will release a fix pretty soon."So gxp2000e was deliberately removed from the archive because of a bug. Build 1.1.6.16 (03/14/2008)• Fix GXP 4 way conference does not terminate correctly when an incoming call comes in• Fix IP fragmentation memory alignment cause memories overwritten• Fix Ethernet MTU is not sufficient causing memories overwritten• Fix Incoming INVITE contains "image" media (T.38) causes the GXP2000 to reject the call.• Fix web page access issue after ethernet loopback test abnormal exit• Change "Cancel" to "Back" in menu-upgrade for consistency• Fix gxp2020/2010 register fail by LCD setting for account 2 • Fix Picking up incoming call using handset while the phone is in busy tone will not pick up the call• Fix Pressing Send to dial when a phone is sounding the busy tone will cause undefined behavior• Fix Page Up/Down key not take effect under some LCD option• Fix gxp2020/2010 register fail by LCD setting• Fix Softkey automatically switch to onhook mode and GXP1200 "backspace" display issue• Fix Blind transfer Delete invalid issue• Fix Canceling blind transfer after input issue• Fix New line in IM will cause the IM display list to be incorrect• Fix Periodic Phonebook download cause incall audio interruptions• Added Feature request : support URI in phone book• Forced Redraw of phonebook synchronization status for GXP2000 and GXP1200• GXP2020: XML Phone book download cause freeze• Forced Redraw of phonebook synchronization status• Fixed we fail to retransmit TCP packets (the retransmitted packet is malformed)• Fixed DHCP client does not comply with the 300 bytes minimum UDP payload requirement• Fixed false link-down report causing intermittent firmware upgrade failure• Added display for current time in WEB UI Status Page• Added HW revision to WEB UI Status Page in the Model section• Added backspace soft key for text boxes in MENU• Added GXP2010/2020 allow DND to be activated during ringing state via DND mode• All GXP2010/2020 MENU textboxes use soft key control for OK/Cancel instead of the GUI buttons which require you to navigate and press MENU key.• Fixed GXP re-SUBSCRIBE uses To-tag from wrong server response• Fixed GXP fails to comply with 412 response for PUBLISH• Fixed non-GXP2010 model may fall into reboot-loop when the configuration file contains parameters for speed dial keys 8-18• Fixed BT200 does not show middle dot in IP address display mode• Fixed remote disconnect an auto-answered call causes no dial tone when handset goes off-hook the next time• Fixed on-hook dialing used wrong account when it goes off-hook• Fixed blind-transfer fail problem when server is in the same LAN• Fixed call park problem with Pingtel platform• Fixed BT200 drops call after 30 seconds of “Call-On-Hold/On-hook” state• Fixed Venezuela time zone change (from GMT ) to GMT -• Fixed we send DNS request to invalid address (IP address) for NTP server• Fixed we do not send NTP request if no NTP server is configured but "Allow DHCP Option 42 to override NTP server" is set to Yes and Option 42 is present• Fixed GXP auto answer issue• Fixed GXP will crash when new instant message arrives if system ran out of memory• Added we will reject MESSAGE requests that have Content-Type other than "text/plain"• Fixed GXP display bug when trying to save contact item in Call History to phonebook and edit Account selection• Fixed one-way audio after a failed transfer• Added support for call-pickup without call tags• Added Ethernet packet filter to protect against flood lock up• Fixed GXP2010/2020 LCD backlight issue after setting to 8/8• Addressed the memory leak issue associated with the notify messages for call pickup• Added softkeys to handle call-waiting• Fixed we sent SUBSCRIBE as "Anonymous" incorrectly when Account 1 has Anonymous on• Fixed GXP2010 does not support fonts f13h, f13b, f16, f16b in customized idle screen• Fixed *50 invalid issue• Decoupled key scanning from DTMF tone playout• Added support for new Venezuela time zone• Fixed GXP2010 BLF pick up does not work with multipurpose key 10-18• Fixed GXP2010 web UI missing "Disable Missed Call Backlight" option• Fixed a few memory leaks in XML application• Fixed call-pickup cannot pickup multiple calls• Added configurable headset gain• Enabled broadcast storm protection, fixed out-of-memory problem associated with GXP1200/2010 and network down issue• Fixed GXP2010 one-way audio problem• Fixed BT200 attended transfer holds/refers wrong party• Added support for half attended transfer for BT200• Support for mute in 3WC, also fixing a muted session gets unmute by remote party hold/unhold• Fixed call ring back tone disappears in specific scenario• Fixed phone will crash if selected ring file in MENU is over 64k• Fixed GXP2010/2020 in-call DTMF display over-run when "#" is used• Fixed Call-Info header value not compliant to RFC3261• Fixed SRTP issue when receiving 183 before 407• Fixed we do not include To-tag in SUBSCRIBE renewals, fixing Out-of-memory on GXP2010• Fixed we will not release SIP channels when SUBSCRIBE requests gets timed out without response eventually exhaust all available channels• Fixed GXP2000 does not allow WEB UI EXT1/EXT2 page access when logged in as end user• Increased parser limit from 800 to 32768 for tone generator values• Support for displaying missed calls during customized idle screen• Fixed syslog sends "deletion of invalid timer" each time NTP response is received during NTP resync.• Removed ":" in MENU-SIP Proxy/SIP Transport• Fixed we will crash when phone is configured to use SIP over TCP and server does not respond• Fixed GXP2020/2010/1200 Mute Speaker in Headset Mode• Supports Intercom Button• Changed multi language configuration interface Watch out for upgrading via HTTP.